[PATCH v2 00/19] ASoC: fsl_micfil: Driver updates

newer
[PATCH] ASoC: max98088: clean up...

Sascha Hauer

28 Mar 2022 28 Mar '22

1:27 p.m.

This series has a bunch of cleanups for the FSL MICFIL driver. There is not much chance for regressions in this series as the driver currently can't work at all. The MICFIL needs multififo support in the i.MX SDMA engine which is added with this series, see 10/19.

The multififo support is selected in the dma phandle arguments in the device tree, the transfer type must be '25' aka IMX_DMATYPE_MULTI_SAI. This is set already to 25 in the upstream i.MX8M[NM] dtsi files, but the SDMA driver silently ignores unsupported values instead of throwing an error. This is fixed in this series and multififo support is added.

I think the series should go via the ASoC tree, so I'll need an ack from the DMA guys for 9/19 and 10/10.

Changes since v1: - Drop unused variable sw_done_sel - Evaluate sdmac->direction directly instead of storing value in n_fifos - add missing include linux/bitfield.h

Sascha Hauer (19): ASoC: fsl_micfil: Drop unnecessary register read ASoC: fsl_micfil: Drop unused register read ASoC: fsl_micfil: drop fsl_micfil_set_mclk_rate() ASoC: fsl_micfil: do not define SHIFT/MASK for single bits ASoC: fsl_micfil: use GENMASK to define register bit fields ASoC: fsl_micfil: use clear/set bits ASoC: fsl_micfil: drop error messages from failed register accesses ASoC: fsl_micfil: drop unused variables dma: imx-sdma: error out on unsupported transfer types dma: imx-sdma: Add multi fifo support ASoC: fsl_micfil: add multi fifo support ASoC: fsl_micfil: use define for OSR default value ASoC: fsl_micfil: Drop get_pdm_clk() ASoC: fsl_micfil: simplify clock setting ASoC: fsl_micfil: rework quality setting ASoC: fsl_micfil: drop unused include ASoC: fsl_micfil: drop only once used defines ASoC: fsl_micfil: drop support for undocumented property ASoC: fsl_micfil: fold fsl_set_clock_params() into its only user

drivers/dma/imx-sdma.c | 74 +++++- include/linux/platform_data/dma-imx.h | 7 + sound/soc/fsl/fsl_micfil.c | 369 +++++++++----------------- sound/soc/fsl/fsl_micfil.h | 269 +++++-------------- 4 files changed, 269 insertions(+), 450 deletions(-)

-- 2.30.2

Show replies by date

Sascha Hauer

28 Mar 28 Mar

1:27 p.m.

New subject: [PATCH v2 01/19] ASoC: fsl_micfil: Drop unnecessary register read

in get_pdm_clk() REG_MICFIL_CTRL2 is read twice. Drop second read.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 2 -- 1 file changed, 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 9f90989ac59a6..64019d003784b 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -118,8 +118,6 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) >> MICFIL_CTRL2_CICOSR_SHIFT); - - regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK;

switch (qsel) {

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 02/19] ASoC: fsl_micfil: Drop unused register read

In get_pdm_clk() REG_MICFIL_CTRL2 is read, but the result is never used. Drop the unused code.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 64019d003784b..cf10c212d770d 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -148,12 +148,9 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, static inline int get_clk_div(struct fsl_micfil *micfil, unsigned int rate) { - u32 ctrl2_reg; long mclk_rate; int clk_div;

- regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); - mclk_rate = clk_get_rate(micfil->mclk);

clk_div = mclk_rate / (get_pdm_clk(micfil, rate) * 2);

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 03/19] ASoC: fsl_micfil: drop fsl_micfil_set_mclk_rate()

All that the .set_sysclk hook in the micfil driver does is to pass the sysclk frequency to fsl_micfil_set_mclk_rate(). This function expects the sample rate as argument though, not any kind of sysclk frequency. The resulting rate setting of the clock is overwritten in hw_params anyway, so drop this altogether.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 20 -------------------- 1 file changed, 20 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index cf10c212d770d..5353474d0ff2b 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -358,30 +358,10 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return 0; }

-static int fsl_micfil_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, - unsigned int freq, int dir) -{ - struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); - struct device *dev = &micfil->pdev->dev; - - int ret; - - if (!freq) - return 0; - - ret = fsl_micfil_set_mclk_rate(micfil, freq); - if (ret < 0) - dev_err(dev, "failed to set mclk[%lu] to rate %u\n", - clk_get_rate(micfil->mclk), freq); - - return ret; -} - static const struct snd_soc_dai_ops fsl_micfil_dai_ops = { .startup = fsl_micfil_startup, .trigger = fsl_micfil_trigger, .hw_params = fsl_micfil_hw_params, - .set_sysclk = fsl_micfil_set_dai_sysclk, };

static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai)

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 04/19] ASoC: fsl_micfil: do not define SHIFT/MASK for single bits

No need to have defines for the mask of single bits. Also shift is unused. Drop all these unnecessary defines.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 18 +++--- sound/soc/fsl/fsl_micfil.h | 125 +++++++++---------------------------- 2 files changed, 40 insertions(+), 103 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 5353474d0ff2b..878d24fde3581 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -170,7 +170,7 @@ static int fsl_micfil_reset(struct device *dev)

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_MDIS_MASK, + MICFIL_CTRL1_MDIS, 0); if (ret) { dev_err(dev, "failed to clear MDIS bit %d\n", ret); @@ -179,7 +179,7 @@ static int fsl_micfil_reset(struct device *dev)

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_SRES_MASK, + MICFIL_CTRL1_SRES, MICFIL_CTRL1_SRES); if (ret) { dev_err(dev, "failed to reset MICFIL: %d\n", ret); @@ -253,7 +253,7 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd,

/* Enable the module */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN_MASK, + MICFIL_CTRL1_PDMIEN, MICFIL_CTRL1_PDMIEN); if (ret) { dev_err(dev, "failed to enable the module\n"); @@ -266,7 +266,7 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* Disable the module */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN_MASK, + MICFIL_CTRL1_PDMIEN, 0); if (ret) { dev_err(dev, "failed to enable the module\n"); @@ -332,7 +332,7 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream,

/* 1. Disable the module */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN_MASK, 0); + MICFIL_CTRL1_PDMIEN, 0); if (ret) { dev_err(dev, "failed to disable the module\n"); return ret; @@ -593,16 +593,16 @@ static irqreturn_t micfil_err_isr(int irq, void *devid)

regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg);

- if (stat_reg & MICFIL_STAT_BSY_FIL_MASK) + if (stat_reg & MICFIL_STAT_BSY_FIL) dev_dbg(&pdev->dev, "isr: Decimation Filter is running\n");

- if (stat_reg & MICFIL_STAT_FIR_RDY_MASK) + if (stat_reg & MICFIL_STAT_FIR_RDY) dev_dbg(&pdev->dev, "isr: FIR Filter Data ready\n");

- if (stat_reg & MICFIL_STAT_LOWFREQF_MASK) { + if (stat_reg & MICFIL_STAT_LOWFREQF) { dev_dbg(&pdev->dev, "isr: ipg_clk_app is too low\n"); regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, - MICFIL_STAT_LOWFREQF_MASK, 1); + MICFIL_STAT_LOWFREQF, 1); }

return IRQ_HANDLED; diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index bac825c3135a0..11ccc08523b2e 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -33,33 +33,17 @@ #define REG_MICFIL_VAD0_ZCD 0xA8

/* MICFIL Control Register 1 -- REG_MICFILL_CTRL1 0x00 */ -#define MICFIL_CTRL1_MDIS_SHIFT 31 -#define MICFIL_CTRL1_MDIS_MASK BIT(MICFIL_CTRL1_MDIS_SHIFT) -#define MICFIL_CTRL1_MDIS BIT(MICFIL_CTRL1_MDIS_SHIFT) -#define MICFIL_CTRL1_DOZEN_SHIFT 30 -#define MICFIL_CTRL1_DOZEN_MASK BIT(MICFIL_CTRL1_DOZEN_SHIFT) -#define MICFIL_CTRL1_DOZEN BIT(MICFIL_CTRL1_DOZEN_SHIFT) -#define MICFIL_CTRL1_PDMIEN_SHIFT 29 -#define MICFIL_CTRL1_PDMIEN_MASK BIT(MICFIL_CTRL1_PDMIEN_SHIFT) -#define MICFIL_CTRL1_PDMIEN BIT(MICFIL_CTRL1_PDMIEN_SHIFT) -#define MICFIL_CTRL1_DBG_SHIFT 28 -#define MICFIL_CTRL1_DBG_MASK BIT(MICFIL_CTRL1_DBG_SHIFT) -#define MICFIL_CTRL1_DBG BIT(MICFIL_CTRL1_DBG_SHIFT) -#define MICFIL_CTRL1_SRES_SHIFT 27 -#define MICFIL_CTRL1_SRES_MASK BIT(MICFIL_CTRL1_SRES_SHIFT) -#define MICFIL_CTRL1_SRES BIT(MICFIL_CTRL1_SRES_SHIFT) -#define MICFIL_CTRL1_DBGE_SHIFT 26 -#define MICFIL_CTRL1_DBGE_MASK BIT(MICFIL_CTRL1_DBGE_SHIFT) -#define MICFIL_CTRL1_DBGE BIT(MICFIL_CTRL1_DBGE_SHIFT) +#define MICFIL_CTRL1_MDIS BIT(31) +#define MICFIL_CTRL1_DOZEN BIT(30) +#define MICFIL_CTRL1_PDMIEN BIT(29) +#define MICFIL_CTRL1_DBG BIT(28) +#define MICFIL_CTRL1_SRES BIT(27) +#define MICFIL_CTRL1_DBGE BIT(26) #define MICFIL_CTRL1_DISEL_SHIFT 24 #define MICFIL_CTRL1_DISEL_WIDTH 2 #define MICFIL_CTRL1_DISEL_MASK ((BIT(MICFIL_CTRL1_DISEL_WIDTH) - 1) \ << MICFIL_CTRL1_DISEL_SHIFT) -#define MICFIL_CTRL1_DISEL(v) (((v) << MICFIL_CTRL1_DISEL_SHIFT) \ - & MICFIL_CTRL1_DISEL_MASK) -#define MICFIL_CTRL1_ERREN_SHIFT 23 -#define MICFIL_CTRL1_ERREN_MASK BIT(MICFIL_CTRL1_ERREN_SHIFT) -#define MICFIL_CTRL1_ERREN BIT(MICFIL_CTRL1_ERREN_SHIFT) +#define MICFIL_CTRL1_ERREN BIT(23) #define MICFIL_CTRL1_CHEN_SHIFT 0 #define MICFIL_CTRL1_CHEN_WIDTH 8 #define MICFIL_CTRL1_CHEN_MASK(x) (BIT(x) << MICFIL_CTRL1_CHEN_SHIFT) @@ -91,15 +75,9 @@ & MICFIL_CTRL2_CLKDIV_MASK)

/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ -#define MICFIL_STAT_BSY_FIL_SHIFT 31 -#define MICFIL_STAT_BSY_FIL_MASK BIT(MICFIL_STAT_BSY_FIL_SHIFT) -#define MICFIL_STAT_BSY_FIL BIT(MICFIL_STAT_BSY_FIL_SHIFT) -#define MICFIL_STAT_FIR_RDY_SHIFT 30 -#define MICFIL_STAT_FIR_RDY_MASK BIT(MICFIL_STAT_FIR_RDY_SHIFT) -#define MICFIL_STAT_FIR_RDY BIT(MICFIL_STAT_FIR_RDY_SHIFT) -#define MICFIL_STAT_LOWFREQF_SHIFT 29 -#define MICFIL_STAT_LOWFREQF_MASK BIT(MICFIL_STAT_LOWFREQF_SHIFT) -#define MICFIL_STAT_LOWFREQF BIT(MICFIL_STAT_LOWFREQF_SHIFT) +#define MICFIL_STAT_BSY_FIL BIT(31) +#define MICFIL_STAT_FIR_RDY BIT(30) +#define MICFIL_STAT_LOWFREQF BIT(29) #define MICFIL_STAT_CHXF_SHIFT(v) (v) #define MICFIL_STAT_CHXF_MASK(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) #define MICFIL_STAT_CHXF(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) @@ -137,32 +115,16 @@ << MICFIL_VAD0_CTRL1_INITT_SHIFT) #define MICFIL_VAD0_CTRL1_INITT(v) (((v) << MICFIL_VAD0_CTRL1_INITT_SHIFT) \ & MICFIL_VAD0_CTRL1_INITT_MASK) -#define MICFIL_VAD0_CTRL1_ST10_SHIFT 4 -#define MICFIL_VAD0_CTRL1_ST10_MASK BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) -#define MICFIL_VAD0_CTRL1_ST10 BIT(MICFIL_VAD0_CTRL1_ST10_SHIFT) -#define MICFIL_VAD0_CTRL1_ERIE_SHIFT 3 -#define MICFIL_VAD0_CTRL1_ERIE_MASK BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) -#define MICFIL_VAD0_CTRL1_ERIE BIT(MICFIL_VAD0_CTRL1_ERIE_SHIFT) -#define MICFIL_VAD0_CTRL1_IE_SHIFT 2 -#define MICFIL_VAD0_CTRL1_IE_MASK BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) -#define MICFIL_VAD0_CTRL1_IE BIT(MICFIL_VAD0_CTRL1_IE_SHIFT) -#define MICFIL_VAD0_CTRL1_RST_SHIFT 1 -#define MICFIL_VAD0_CTRL1_RST_MASK BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) -#define MICFIL_VAD0_CTRL1_RST BIT(MICFIL_VAD0_CTRL1_RST_SHIFT) -#define MICFIL_VAD0_CTRL1_EN_SHIFT 0 -#define MICFIL_VAD0_CTRL1_EN_MASK BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) -#define MICFIL_VAD0_CTRL1_EN BIT(MICFIL_VAD0_CTRL1_EN_SHIFT) +#define MICFIL_VAD0_CTRL1_ST10 BIT(4) +#define MICFIL_VAD0_CTRL1_ERIE BIT(3) +#define MICFIL_VAD0_CTRL1_IE BIT(2) +#define MICFIL_VAD0_CTRL1_RST BIT(1) +#define MICFIL_VAD0_CTRL1_EN BIT(0)

/* MICFIL HWVAD0 Control 2 Register -- REG_MICFIL_VAD0_CTRL2*/ -#define MICFIL_VAD0_CTRL2_FRENDIS_SHIFT 31 -#define MICFIL_VAD0_CTRL2_FRENDIS_MASK BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) -#define MICFIL_VAD0_CTRL2_FRENDIS BIT(MICFIL_VAD0_CTRL2_FRENDIS_SHIFT) -#define MICFIL_VAD0_CTRL2_PREFEN_SHIFT 30 -#define MICFIL_VAD0_CTRL2_PREFEN_MASK BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) -#define MICFIL_VAD0_CTRL2_PREFEN BIT(MICFIL_VAD0_CTRL2_PREFEN_SHIFT) -#define MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT 28 -#define MICFIL_VAD0_CTRL2_FOUTDIS_MASK BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) -#define MICFIL_VAD0_CTRL2_FOUTDIS BIT(MICFIL_VAD0_CTRL2_FOUTDIS_SHIFT) +#define MICFIL_VAD0_CTRL2_FRENDIS BIT(31) +#define MICFIL_VAD0_CTRL2_PREFEN BIT(30) +#define MICFIL_VAD0_CTRL2_FOUTDIS BIT(28) #define MICFIL_VAD0_CTRL2_FRAMET_SHIFT 16 #define MICFIL_VAD0_CTRL2_FRAMET_WIDTH 6 #define MICFIL_VAD0_CTRL2_FRAMET_MASK ((BIT(MICFIL_VAD0_CTRL2_FRAMET_WIDTH) - 1) \ @@ -183,12 +145,8 @@ & MICFIL_VAD0_CTRL2_HPF_MASK)

/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ -#define MICFIL_VAD0_SCONFIG_SFILEN_SHIFT 31 -#define MICFIL_VAD0_SCONFIG_SFILEN_MASK BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) -#define MICFIL_VAD0_SCONFIG_SFILEN BIT(MICFIL_VAD0_SCONFIG_SFILEN_SHIFT) -#define MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT 30 -#define MICFIL_VAD0_SCONFIG_SMAXEN_MASK BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) -#define MICFIL_VAD0_SCONFIG_SMAXEN BIT(MICFIL_VAD0_SCONFIG_SMAXEN_SHIFT) +#define MICFIL_VAD0_SCONFIG_SFILEN BIT(31) +#define MICFIL_VAD0_SCONFIG_SMAXEN BIT(30) #define MICFIL_VAD0_SCONFIG_SGAIN_SHIFT 0 #define MICFIL_VAD0_SCONFIG_SGAIN_WIDTH 4 #define MICFIL_VAD0_SCONFIG_SGAIN_MASK ((BIT(MICFIL_VAD0_SCONFIG_SGAIN_WIDTH) - 1) \ @@ -197,17 +155,10 @@ & MICFIL_VAD0_SCONFIG_SGAIN_MASK)

/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ -#define MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT 31 -#define MICFIL_VAD0_NCONFIG_NFILAUT_MASK BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) -#define MICFIL_VAD0_NCONFIG_NFILAUT BIT(MICFIL_VAD0_NCONFIG_NFILAUT_SHIFT) -#define MICFIL_VAD0_NCONFIG_NMINEN_SHIFT 30 -#define MICFIL_VAD0_NCONFIG_NMINEN_MASK BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NMINEN BIT(MICFIL_VAD0_NCONFIG_NMINEN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NDECEN_SHIFT 29 -#define MICFIL_VAD0_NCONFIG_NDECEN_MASK BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NDECEN BIT(MICFIL_VAD0_NCONFIG_NDECEN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NOREN_SHIFT 28 -#define MICFIL_VAD0_NCONFIG_NOREN BIT(MICFIL_VAD0_NCONFIG_NOREN_SHIFT) +#define MICFIL_VAD0_NCONFIG_NFILAUT BIT(31) +#define MICFIL_VAD0_NCONFIG_NMINEN BIT(30) +#define MICFIL_VAD0_NCONFIG_NDECEN BIT(29) +#define MICFIL_VAD0_NCONFIG_NOREN BIT(28) #define MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT 8 #define MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH 5 #define MICFIL_VAD0_NCONFIG_NFILADJ_MASK ((BIT(MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH) - 1) \ @@ -234,29 +185,15 @@ << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT) #define MICFIL_VAD0_ZCD_ZCDADJ(v) (((v) << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)\ & MICFIL_VAD0_ZCD_ZCDADJ_MASK) -#define MICFIL_VAD0_ZCD_ZCDAND_SHIFT 4 -#define MICFIL_VAD0_ZCD_ZCDAND_MASK BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDAND BIT(MICFIL_VAD0_ZCD_ZCDAND_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDAUT_SHIFT 2 -#define MICFIL_VAD0_ZCD_ZCDAUT_MASK BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDAUT BIT(MICFIL_VAD0_ZCD_ZCDAUT_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDEN_SHIFT 0 -#define MICFIL_VAD0_ZCD_ZCDEN_MASK BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDEN BIT(MICFIL_VAD0_ZCD_ZCDEN_SHIFT) +#define MICFIL_VAD0_ZCD_ZCDAND BIT(4) +#define MICFIL_VAD0_ZCD_ZCDAUT BIT(2) +#define MICFIL_VAD0_ZCD_ZCDEN BIT(0)

/* MICFIL HWVAD0 Status Register - REG_MICFIL_VAD0_STAT */ -#define MICFIL_VAD0_STAT_INITF_SHIFT 31 -#define MICFIL_VAD0_STAT_INITF_MASK BIT(MICFIL_VAD0_STAT_INITF_SHIFT) -#define MICFIL_VAD0_STAT_INITF BIT(MICFIL_VAD0_STAT_INITF_SHIFT) -#define MICFIL_VAD0_STAT_INSATF_SHIFT 16 -#define MICFIL_VAD0_STAT_INSATF_MASK BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) -#define MICFIL_VAD0_STAT_INSATF BIT(MICFIL_VAD0_STAT_INSATF_SHIFT) -#define MICFIL_VAD0_STAT_EF_SHIFT 15 -#define MICFIL_VAD0_STAT_EF_MASK BIT(MICFIL_VAD0_STAT_EF_SHIFT) -#define MICFIL_VAD0_STAT_EF BIT(MICFIL_VAD0_STAT_EF_SHIFT) -#define MICFIL_VAD0_STAT_IF_SHIFT 0 -#define MICFIL_VAD0_STAT_IF_MASK BIT(MICFIL_VAD0_STAT_IF_SHIFT) -#define MICFIL_VAD0_STAT_IF BIT(MICFIL_VAD0_STAT_IF_SHIFT) +#define MICFIL_VAD0_STAT_INITF BIT(31) +#define MICFIL_VAD0_STAT_INSATF BIT(16) +#define MICFIL_VAD0_STAT_EF BIT(15) +#define MICFIL_VAD0_STAT_IF BIT(0)

/* MICFIL Output Control Register */ #define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v))

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 05/19] ASoC: fsl_micfil: use GENMASK to define register bit fields

Use GENMASK along with FIELD_PREP and FIELD_GET to access bitfields in registers to straighten register access and to drop a lot of defines.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de ---

Notes: Changes since v1: - add missing include linux/bitfield.h

sound/soc/fsl/fsl_micfil.c | 52 ++++++------- sound/soc/fsl/fsl_micfil.h | 147 ++++++++----------------------------- 2 files changed, 58 insertions(+), 141 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 878d24fde3581..cfa8af668d921 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright 2018 NXP

+#include <linux/bitfield.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/interrupt.h> @@ -116,23 +117,22 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, int bclk;

regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); - osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK) - >> MICFIL_CTRL2_CICOSR_SHIFT); - qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK; + osr = 16 - FIELD_GET(MICFIL_CTRL2_CICOSR, ctrl2_reg); + qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg);

switch (qsel) { - case MICFIL_HIGH_QUALITY: + case MICFIL_QSEL_HIGH_QUALITY: bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */ break; - case MICFIL_MEDIUM_QUALITY: - case MICFIL_VLOW0_QUALITY: + case MICFIL_QSEL_MEDIUM_QUALITY: + case MICFIL_QSEL_VLOW0_QUALITY: bclk = rate * 4 * osr * 1; /* kfactor = 1 */ break; - case MICFIL_LOW_QUALITY: - case MICFIL_VLOW1_QUALITY: + case MICFIL_QSEL_LOW_QUALITY: + case MICFIL_QSEL_VLOW1_QUALITY: bclk = rate * 2 * osr * 2; /* kfactor = 2 */ break; - case MICFIL_VLOW2_QUALITY: + case MICFIL_QSEL_VLOW2_QUALITY: bclk = rate * osr * 4; /* kfactor = 4 */ break; default: @@ -244,8 +244,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, * 11 - reserved */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_DISEL_MASK, - (1 << MICFIL_CTRL1_DISEL_SHIFT)); + MICFIL_CTRL1_DISEL, + FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DMA)); if (ret) { dev_err(dev, "failed to update DISEL bits\n"); return ret; @@ -274,8 +274,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, }

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_DISEL_MASK, - (0 << MICFIL_CTRL1_DISEL_SHIFT)); + MICFIL_CTRL1_DISEL, + FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DISABLE)); if (ret) { dev_err(dev, "failed to update DISEL bits\n"); return ret; @@ -300,8 +300,8 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate)

/* set CICOSR */ ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_CICOSR_MASK, - MICFIL_CTRL2_OSR_DEFAULT); + MICFIL_CTRL2_CICOSR, + FIELD_PREP(MICFIL_CTRL2_CICOSR, MICFIL_CTRL2_CICOSR_DEFAULT)); if (ret) dev_err(dev, "failed to set CICOSR in reg 0x%X\n", REG_MICFIL_CTRL2); @@ -312,7 +312,8 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) ret = -EINVAL;

ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_CLKDIV_MASK, clk_div); + MICFIL_CTRL2_CLKDIV, + FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div)); if (ret) dev_err(dev, "failed to set CLKDIV in reg 0x%X\n", REG_MICFIL_CTRL2); @@ -368,13 +369,13 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); struct device *dev = cpu_dai->dev; - unsigned int val; int ret; int i;

/* set qsel to medium */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_QSEL_MASK, MICFIL_MEDIUM_QUALITY); + MICFIL_CTRL2_QSEL, + FIELD_PREP(MICFIL_CTRL2_QSEL, MICFIL_QSEL_MEDIUM_QUALITY)); if (ret) { dev_err(dev, "failed to set quality mode bits, reg 0x%X\n", REG_MICFIL_CTRL2); @@ -390,10 +391,9 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) &micfil->dma_params_rx);

/* FIFO Watermark Control - FIFOWMK*/ - val = MICFIL_FIFO_CTRL_FIFOWMK(micfil->soc->fifo_depth) - 1; ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL, - MICFIL_FIFO_CTRL_FIFOWMK_MASK, - val); + MICFIL_FIFO_CTRL_FIFOWMK, + FIELD_PREP(MICFIL_FIFO_CTRL_FIFOWMK, micfil->soc->fifo_depth - 1)); if (ret) { dev_err(dev, "failed to set FIFOWMK\n"); return ret; @@ -553,11 +553,11 @@ static irqreturn_t micfil_isr(int irq, void *devid) regmap_read(micfil->regmap, REG_MICFIL_CTRL1, &ctrl1_reg); regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg);

- dma_enabled = MICFIL_DMA_ENABLED(ctrl1_reg); + dma_enabled = FIELD_GET(MICFIL_CTRL1_DISEL, ctrl1_reg) == MICFIL_CTRL1_DISEL_DMA;

/* Channel 0-7 Output Data Flags */ for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++) { - if (stat_reg & MICFIL_STAT_CHXF_MASK(i)) + if (stat_reg & MICFIL_STAT_CHXF(i)) dev_dbg(&pdev->dev, "Data available in Data Channel %d\n", i); /* if DMA is not enabled, field must be written with 1 @@ -566,17 +566,17 @@ static irqreturn_t micfil_isr(int irq, void *devid) if (!dma_enabled) regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, - MICFIL_STAT_CHXF_MASK(i), + MICFIL_STAT_CHXF(i), 1); }

for (i = 0; i < MICFIL_FIFO_NUM; i++) { - if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER_MASK(i)) + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER(i)) dev_dbg(&pdev->dev, "FIFO Overflow Exception flag for channel %d\n", i);

- if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(i)) + if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER(i)) dev_dbg(&pdev->dev, "FIFO Underflow Exception flag for channel %d\n", i); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index 11ccc08523b2e..5cecae2519795 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -39,82 +39,45 @@ #define MICFIL_CTRL1_DBG BIT(28) #define MICFIL_CTRL1_SRES BIT(27) #define MICFIL_CTRL1_DBGE BIT(26) -#define MICFIL_CTRL1_DISEL_SHIFT 24 -#define MICFIL_CTRL1_DISEL_WIDTH 2 -#define MICFIL_CTRL1_DISEL_MASK ((BIT(MICFIL_CTRL1_DISEL_WIDTH) - 1) \ - << MICFIL_CTRL1_DISEL_SHIFT) + +#define MICFIL_CTRL1_DISEL_DISABLE 0 +#define MICFIL_CTRL1_DISEL_DMA 1 +#define MICFIL_CTRL1_DISEL_IRQ 2 +#define MICFIL_CTRL1_DISEL GENMASK(25, 24) #define MICFIL_CTRL1_ERREN BIT(23) -#define MICFIL_CTRL1_CHEN_SHIFT 0 -#define MICFIL_CTRL1_CHEN_WIDTH 8 -#define MICFIL_CTRL1_CHEN_MASK(x) (BIT(x) << MICFIL_CTRL1_CHEN_SHIFT) -#define MICFIL_CTRL1_CHEN(x) (MICFIL_CTRL1_CHEN_MASK(x)) +#define MICFIL_CTRL1_CHEN(ch) BIT(ch)

/* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */ #define MICFIL_CTRL2_QSEL_SHIFT 25 -#define MICFIL_CTRL2_QSEL_WIDTH 3 -#define MICFIL_CTRL2_QSEL_MASK ((BIT(MICFIL_CTRL2_QSEL_WIDTH) - 1) \ - << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_HIGH_QUALITY BIT(MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_MEDIUM_QUALITY (0 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_LOW_QUALITY (7 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW0_QUALITY (6 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW1_QUALITY (5 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW2_QUALITY (4 << MICFIL_CTRL2_QSEL_SHIFT) - -#define MICFIL_CTRL2_CICOSR_SHIFT 16 -#define MICFIL_CTRL2_CICOSR_WIDTH 4 -#define MICFIL_CTRL2_CICOSR_MASK ((BIT(MICFIL_CTRL2_CICOSR_WIDTH) - 1) \ - << MICFIL_CTRL2_CICOSR_SHIFT) -#define MICFIL_CTRL2_CICOSR(v) (((v) << MICFIL_CTRL2_CICOSR_SHIFT) \ - & MICFIL_CTRL2_CICOSR_MASK) -#define MICFIL_CTRL2_CLKDIV_SHIFT 0 -#define MICFIL_CTRL2_CLKDIV_WIDTH 8 -#define MICFIL_CTRL2_CLKDIV_MASK ((BIT(MICFIL_CTRL2_CLKDIV_WIDTH) - 1) \ - << MICFIL_CTRL2_CLKDIV_SHIFT) -#define MICFIL_CTRL2_CLKDIV(v) (((v) << MICFIL_CTRL2_CLKDIV_SHIFT) \ - & MICFIL_CTRL2_CLKDIV_MASK) +#define MICFIL_CTRL2_QSEL GENMASK(27, 25) +#define MICFIL_QSEL_MEDIUM_QUALITY 0 +#define MICFIL_QSEL_HIGH_QUALITY 1 +#define MICFIL_QSEL_LOW_QUALITY 7 +#define MICFIL_QSEL_VLOW0_QUALITY 6 +#define MICFIL_QSEL_VLOW1_QUALITY 5 +#define MICFIL_QSEL_VLOW2_QUALITY 4 + +#define MICFIL_CTRL2_CICOSR GENMASK(19, 16) +#define MICFIL_CTRL2_CICOSR_DEFAULT 0 +#define MICFIL_CTRL2_CLKDIV GENMASK(7, 0)

/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ #define MICFIL_STAT_BSY_FIL BIT(31) #define MICFIL_STAT_FIR_RDY BIT(30) #define MICFIL_STAT_LOWFREQF BIT(29) -#define MICFIL_STAT_CHXF_SHIFT(v) (v) -#define MICFIL_STAT_CHXF_MASK(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) -#define MICFIL_STAT_CHXF(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) +#define MICFIL_STAT_CHXF(ch) BIT(ch)

/* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */ -#define MICFIL_FIFO_CTRL_FIFOWMK_SHIFT 0 -#define MICFIL_FIFO_CTRL_FIFOWMK_WIDTH 3 -#define MICFIL_FIFO_CTRL_FIFOWMK_MASK ((BIT(MICFIL_FIFO_CTRL_FIFOWMK_WIDTH) - 1) \ - << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) -#define MICFIL_FIFO_CTRL_FIFOWMK(v) (((v) << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) \ - & MICFIL_FIFO_CTRL_FIFOWMK_MASK) +#define MICFIL_FIFO_CTRL_FIFOWMK GENMASK(2, 0)

/* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */ -#define MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v) (v) -#define MICFIL_FIFO_STAT_FIFOX_OVER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v)) -#define MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v) ((v) + 8) -#define MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v)) +#define MICFIL_FIFO_STAT_FIFOX_OVER(ch) BIT(ch) +#define MICFIL_FIFO_STAT_FIFOX_UNDER(ch) BIT((ch) + 8)

/* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/ -#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT 24 -#define MICFIL_VAD0_CTRL1_CHSEL_WIDTH 3 -#define MICFIL_VAD0_CTRL1_CHSEL_MASK ((BIT(MICFIL_VAD0_CTRL1_CHSEL_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) -#define MICFIL_VAD0_CTRL1_CHSEL(v) (((v) << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) \ - & MICFIL_VAD0_CTRL1_CHSEL_MASK) -#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT 16 -#define MICFIL_VAD0_CTRL1_CICOSR_WIDTH 4 -#define MICFIL_VAD0_CTRL1_CICOSR_MASK ((BIT(MICFIL_VAD0_CTRL1_CICOSR_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) -#define MICFIL_VAD0_CTRL1_CICOSR(v) (((v) << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) \ - & MICFIL_VAD0_CTRL1_CICOSR_MASK) -#define MICFIL_VAD0_CTRL1_INITT_SHIFT 8 -#define MICFIL_VAD0_CTRL1_INITT_WIDTH 5 -#define MICFIL_VAD0_CTRL1_INITT_MASK ((BIT(MICFIL_VAD0_CTRL1_INITT_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL1_INITT_SHIFT) -#define MICFIL_VAD0_CTRL1_INITT(v) (((v) << MICFIL_VAD0_CTRL1_INITT_SHIFT) \ - & MICFIL_VAD0_CTRL1_INITT_MASK) +#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT GENMASK(26, 24) +#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT GENMASK(19, 16) +#define MICFIL_VAD0_CTRL1_INITT_SHIFT GENMASK(12, 8) #define MICFIL_VAD0_CTRL1_ST10 BIT(4) #define MICFIL_VAD0_CTRL1_ERIE BIT(3) #define MICFIL_VAD0_CTRL1_IE BIT(2) @@ -125,66 +88,26 @@ #define MICFIL_VAD0_CTRL2_FRENDIS BIT(31) #define MICFIL_VAD0_CTRL2_PREFEN BIT(30) #define MICFIL_VAD0_CTRL2_FOUTDIS BIT(28) -#define MICFIL_VAD0_CTRL2_FRAMET_SHIFT 16 -#define MICFIL_VAD0_CTRL2_FRAMET_WIDTH 6 -#define MICFIL_VAD0_CTRL2_FRAMET_MASK ((BIT(MICFIL_VAD0_CTRL2_FRAMET_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) -#define MICFIL_VAD0_CTRL2_FRAMET(v) (((v) << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) \ - & MICFIL_VAD0_CTRL2_FRAMET_MASK) -#define MICFIL_VAD0_CTRL2_INPGAIN_SHIFT 8 -#define MICFIL_VAD0_CTRL2_INPGAIN_WIDTH 4 -#define MICFIL_VAD0_CTRL2_INPGAIN_MASK ((BIT(MICFIL_VAD0_CTRL2_INPGAIN_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) -#define MICFIL_VAD0_CTRL2_INPGAIN(v) (((v) << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) \ - & MICFIL_VAD0_CTRL2_INPGAIN_MASK) -#define MICFIL_VAD0_CTRL2_HPF_SHIFT 0 -#define MICFIL_VAD0_CTRL2_HPF_WIDTH 2 -#define MICFIL_VAD0_CTRL2_HPF_MASK ((BIT(MICFIL_VAD0_CTRL2_HPF_WIDTH) - 1) \ - << MICFIL_VAD0_CTRL2_HPF_SHIFT) -#define MICFIL_VAD0_CTRL2_HPF(v) (((v) << MICFIL_VAD0_CTRL2_HPF_SHIFT) \ - & MICFIL_VAD0_CTRL2_HPF_MASK) +#define MICFIL_VAD0_CTRL2_FRAMET GENMASK(21, 16) +#define MICFIL_VAD0_CTRL2_INPGAIN GENMASK(11, 8) +#define MICFIL_VAD0_CTRL2_HPF GENMASK(1, 0)

/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ #define MICFIL_VAD0_SCONFIG_SFILEN BIT(31) #define MICFIL_VAD0_SCONFIG_SMAXEN BIT(30) -#define MICFIL_VAD0_SCONFIG_SGAIN_SHIFT 0 -#define MICFIL_VAD0_SCONFIG_SGAIN_WIDTH 4 -#define MICFIL_VAD0_SCONFIG_SGAIN_MASK ((BIT(MICFIL_VAD0_SCONFIG_SGAIN_WIDTH) - 1) \ - << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) -#define MICFIL_VAD0_SCONFIG_SGAIN(v) (((v) << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) \ - & MICFIL_VAD0_SCONFIG_SGAIN_MASK) +#define MICFIL_VAD0_SCONFIG_SGAIN GENMASK(3, 0)

/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ #define MICFIL_VAD0_NCONFIG_NFILAUT BIT(31) #define MICFIL_VAD0_NCONFIG_NMINEN BIT(30) #define MICFIL_VAD0_NCONFIG_NDECEN BIT(29) #define MICFIL_VAD0_NCONFIG_NOREN BIT(28) -#define MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT 8 -#define MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH 5 -#define MICFIL_VAD0_NCONFIG_NFILADJ_MASK ((BIT(MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH) - 1) \ - << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) -#define MICFIL_VAD0_NCONFIG_NFILADJ(v) (((v) << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) \ - & MICFIL_VAD0_NCONFIG_NFILADJ_MASK) -#define MICFIL_VAD0_NCONFIG_NGAIN_SHIFT 0 -#define MICFIL_VAD0_NCONFIG_NGAIN_WIDTH 4 -#define MICFIL_VAD0_NCONFIG_NGAIN_MASK ((BIT(MICFIL_VAD0_NCONFIG_NGAIN_WIDTH) - 1) \ - << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NGAIN(v) (((v) << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) \ - & MICFIL_VAD0_NCONFIG_NGAIN_MASK) +#define MICFIL_VAD0_NCONFIG_NFILADJ GENMASK(12, 8) +#define MICFIL_VAD0_NCONFIG_NGAIN GENMASK(3, 0)

/* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */ -#define MICFIL_VAD0_ZCD_ZCDTH_SHIFT 16 -#define MICFIL_VAD0_ZCD_ZCDTH_WIDTH 10 -#define MICFIL_VAD0_ZCD_ZCDTH_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDTH_WIDTH) - 1) \ - << MICFIL_VAD0_ZCD_ZCDTH_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDTH(v) (((v) << MICFIL_VAD0_ZCD_ZCDTH_SHIFT)\ - & MICFIL_VAD0_ZCD_ZCDTH_MASK) -#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT 8 -#define MICFIL_VAD0_ZCD_ZCDADJ_WIDTH 4 -#define MICFIL_VAD0_ZCD_ZCDADJ_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDADJ_WIDTH) - 1)\ - << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT) -#define MICFIL_VAD0_ZCD_ZCDADJ(v) (((v) << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)\ - & MICFIL_VAD0_ZCD_ZCDADJ_MASK) +#define MICFIL_VAD0_ZCD_ZCDTH GENMASK(25, 16) +#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT GENMASK(11, 8) #define MICFIL_VAD0_ZCD_ZCDAND BIT(4) #define MICFIL_VAD0_ZCD_ZCDAUT BIT(2) #define MICFIL_VAD0_ZCD_ZCDEN BIT(0) @@ -199,11 +122,6 @@ #define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v))

/* Constants */ -#define MICFIL_DMA_IRQ_DISABLED(v) ((v) & MICFIL_CTRL1_DISEL_MASK) -#define MICFIL_DMA_ENABLED(v) ((0x1 << MICFIL_CTRL1_DISEL_SHIFT) \ - == ((v) & MICFIL_CTRL1_DISEL_MASK)) -#define MICFIL_IRQ_ENABLED(v) ((0x2 << MICFIL_CTRL1_DISEL_SHIFT) \ - == ((v) & MICFIL_CTRL1_DISEL_MASK)) #define MICFIL_OUTPUT_CHANNELS 8 #define MICFIL_FIFO_NUM 8

@@ -215,6 +133,5 @@ #define MICFIL_SLEEP_MIN 90000 /* in us */ #define MICFIL_SLEEP_MAX 100000 /* in us */ #define MICFIL_DMA_MAXBURST_RX 6 -#define MICFIL_CTRL2_OSR_DEFAULT (0 << MICFIL_CTRL2_CICOSR_SHIFT)

#endif /* _FSL_MICFIL_H */

-- 2.30.2

Shengjiu Wang

7 Apr 7 Apr

4:08 a.m.

New subject: [PATCH v2 05/19] ASoC: fsl_micfil: use GENMASK to define register bit fields

On Mon, Mar 28, 2022 at 7:28 PM Sascha Hauer s.hauer@pengutronix.de wrote:

...

Use GENMASK along with FIELD_PREP and FIELD_GET to access bitfields in registers to straighten register access and to drop a lot of defines.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

Notes: Changes since v1: - add missing include linux/bitfield.h

sound/soc/fsl/fsl_micfil.c | 52 ++++++------- sound/soc/fsl/fsl_micfil.h | 147 ++++++++----------------------------- 2 files changed, 58 insertions(+), 141 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 878d24fde3581..cfa8af668d921 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 // Copyright 2018 NXP

+#include <linux/bitfield.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/interrupt.h> @@ -116,23 +117,22 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, int bclk;
    regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg);
  osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK)
              >> MICFIL_CTRL2_CICOSR_SHIFT);
  qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK;
  osr = 16 - FIELD_GET(MICFIL_CTRL2_CICOSR, ctrl2_reg);
  qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg);

  switch (qsel) {
  case MICFIL_HIGH_QUALITY:
  case MICFIL_QSEL_HIGH_QUALITY:
          bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */
          break;
  case MICFIL_MEDIUM_QUALITY:
  case MICFIL_VLOW0_QUALITY:
  case MICFIL_QSEL_MEDIUM_QUALITY:
  case MICFIL_QSEL_VLOW0_QUALITY:
          bclk = rate * 4 * osr * 1; /* kfactor = 1 */
          break;
  case MICFIL_LOW_QUALITY:
  case MICFIL_VLOW1_QUALITY:
  case MICFIL_QSEL_LOW_QUALITY:
  case MICFIL_QSEL_VLOW1_QUALITY:
          bclk = rate * 2 * osr * 2; /* kfactor = 2 */
          break;
  case MICFIL_VLOW2_QUALITY:
  case MICFIL_QSEL_VLOW2_QUALITY:
          bclk = rate * osr * 4; /* kfactor = 4 */
          break;
  default:
@@ -244,8 +244,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, * 11 - reserved */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1,
                                   MICFIL_CTRL1_DISEL_MASK,
                                   (1 << MICFIL_CTRL1_DISEL_SHIFT));
                          MICFIL_CTRL1_DISEL,
                          FIELD_PREP(MICFIL_CTRL1_DISEL,
MICFIL_CTRL1_DISEL_DMA));

Alignment should match open parenthesis?

if (ret) {

...

                    dev_err(dev, "failed to update DISEL bits\n");
                    return ret;

@@ -274,8 +274,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, }

            ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1,

                                   MICFIL_CTRL1_DISEL_MASK,

                                   (0 << MICFIL_CTRL1_DISEL_SHIFT));

                          MICFIL_CTRL1_DISEL,

                          FIELD_PREP(MICFIL_CTRL1_DISEL,

MICFIL_CTRL1_DISEL_DISABLE));

Alignment should match open parenthesis?

...

            if (ret) {
                    dev_err(dev, "failed to update DISEL bits\n");
                    return ret;

@@ -300,8 +300,8 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate)

    /* set CICOSR */
    ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,

                           MICFIL_CTRL2_CICOSR_MASK,

                           MICFIL_CTRL2_OSR_DEFAULT);

                           MICFIL_CTRL2_CICOSR,

                           FIELD_PREP(MICFIL_CTRL2_CICOSR,

MICFIL_CTRL2_CICOSR_DEFAULT));

Alignment should match open parenthesis?

if (ret)

...

            dev_err(dev, "failed to set CICOSR in reg 0x%X\n",
                    REG_MICFIL_CTRL2);

@@ -312,7 +312,8 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) ret = -EINVAL;

    ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,

                           MICFIL_CTRL2_CLKDIV_MASK, clk_div);

                           MICFIL_CTRL2_CLKDIV,

                           FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div));

Alignment should match open parenthesis?

...

    if (ret)
            dev_err(dev, "failed to set CLKDIV in reg 0x%X\n",
                    REG_MICFIL_CTRL2);
@@ -368,13 +369,13 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); struct device *dev = cpu_dai->dev;
  unsigned int val;
  int ret;
  int i;

  /* set qsel to medium */
  ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,
                           MICFIL_CTRL2_QSEL_MASK,
MICFIL_MEDIUM_QUALITY);
                  MICFIL_CTRL2_QSEL,
                  FIELD_PREP(MICFIL_CTRL2_QSEL,
MICFIL_QSEL_MEDIUM_QUALITY));

ditto

...

    if (ret) {
            dev_err(dev, "failed to set quality mode bits, reg 0x%X\n",
                    REG_MICFIL_CTRL2);

@@ -390,10 +391,9 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) &micfil->dma_params_rx);

    /* FIFO Watermark Control - FIFOWMK*/

  val = MICFIL_FIFO_CTRL_FIFOWMK(micfil->soc->fifo_depth) - 1;
  ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL,

                           MICFIL_FIFO_CTRL_FIFOWMK_MASK,

```
                           val);
```

                  MICFIL_FIFO_CTRL_FIFOWMK,

                  FIELD_PREP(MICFIL_FIFO_CTRL_FIFOWMK,

micfil->soc->fifo_depth - 1));

ditto

...

    if (ret) {
            dev_err(dev, "failed to set FIFOWMK\n");
            return ret;
@@ -553,11 +553,11 @@ static irqreturn_t micfil_isr(int irq, void *devid) regmap_read(micfil->regmap, REG_MICFIL_CTRL1, &ctrl1_reg); regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg);
  dma_enabled = MICFIL_DMA_ENABLED(ctrl1_reg);
  dma_enabled = FIELD_GET(MICFIL_CTRL1_DISEL, ctrl1_reg) ==
MICFIL_CTRL1_DISEL_DMA;
    /* Channel 0-7 Output Data Flags */
    for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++) {
          if (stat_reg & MICFIL_STAT_CHXF_MASK(i))
          if (stat_reg & MICFIL_STAT_CHXF(i))
                  dev_dbg(&pdev->dev,
                          "Data available in Data Channel %d\n", i);
          /* if DMA is not enabled, field must be written with 1
@@ -566,17 +566,17 @@ static irqreturn_t micfil_isr(int irq, void *devid) if (!dma_enabled) regmap_write_bits(micfil->regmap, REG_MICFIL_STAT,
                                    MICFIL_STAT_CHXF_MASK(i),
                                    MICFIL_STAT_CHXF(i),
                                    1);
  }

  for (i = 0; i < MICFIL_FIFO_NUM; i++) {
          if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER_MASK(i))
          if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER(i))
                  dev_dbg(&pdev->dev,
                          "FIFO Overflow Exception flag for channel
%d\n", i);
          if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(i))
          if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER(i))
                  dev_dbg(&pdev->dev,
                          "FIFO Underflow Exception flag for channel
%d\n", i); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index 11ccc08523b2e..5cecae2519795 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -39,82 +39,45 @@ #define MICFIL_CTRL1_DBG BIT(28) #define MICFIL_CTRL1_SRES BIT(27) #define MICFIL_CTRL1_DBGE BIT(26) -#define MICFIL_CTRL1_DISEL_SHIFT 24 -#define MICFIL_CTRL1_DISEL_WIDTH 2 -#define MICFIL_CTRL1_DISEL_MASK ((BIT(MICFIL_CTRL1_DISEL_WIDTH) - 1) \
                                   << MICFIL_CTRL1_DISEL_SHIFT)
+#define MICFIL_CTRL1_DISEL_DISABLE 0 +#define MICFIL_CTRL1_DISEL_DMA 1 +#define MICFIL_CTRL1_DISEL_IRQ 2 +#define MICFIL_CTRL1_DISEL GENMASK(25, 24) #define MICFIL_CTRL1_ERREN BIT(23) -#define MICFIL_CTRL1_CHEN_SHIFT 0 -#define MICFIL_CTRL1_CHEN_WIDTH 8 -#define MICFIL_CTRL1_CHEN_MASK(x) (BIT(x) << MICFIL_CTRL1_CHEN_SHIFT) -#define MICFIL_CTRL1_CHEN(x) (MICFIL_CTRL1_CHEN_MASK(x)) +#define MICFIL_CTRL1_CHEN(ch) BIT(ch)

/* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */ #define MICFIL_CTRL2_QSEL_SHIFT 25 -#define MICFIL_CTRL2_QSEL_WIDTH 3 -#define MICFIL_CTRL2_QSEL_MASK ((BIT(MICFIL_CTRL2_QSEL_WIDTH) -

\
                                   << MICFIL_CTRL2_QSEL_SHIFT)
-#define MICFIL_HIGH_QUALITY BIT(MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_MEDIUM_QUALITY (0 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_LOW_QUALITY (7 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW0_QUALITY (6 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW1_QUALITY (5 << MICFIL_CTRL2_QSEL_SHIFT) -#define MICFIL_VLOW2_QUALITY (4 << MICFIL_CTRL2_QSEL_SHIFT)

-#define MICFIL_CTRL2_CICOSR_SHIFT 16 -#define MICFIL_CTRL2_CICOSR_WIDTH 4 -#define MICFIL_CTRL2_CICOSR_MASK ((BIT(MICFIL_CTRL2_CICOSR_WIDTH) -

\
                                   << MICFIL_CTRL2_CICOSR_SHIFT)
-#define MICFIL_CTRL2_CICOSR(v) (((v) << MICFIL_CTRL2_CICOSR_SHIFT) \
                                   & MICFIL_CTRL2_CICOSR_MASK)
-#define MICFIL_CTRL2_CLKDIV_SHIFT 0 -#define MICFIL_CTRL2_CLKDIV_WIDTH 8 -#define MICFIL_CTRL2_CLKDIV_MASK ((BIT(MICFIL_CTRL2_CLKDIV_WIDTH) -

\
                                   << MICFIL_CTRL2_CLKDIV_SHIFT)
-#define MICFIL_CTRL2_CLKDIV(v) (((v) << MICFIL_CTRL2_CLKDIV_SHIFT) \
                                   & MICFIL_CTRL2_CLKDIV_MASK)
+#define MICFIL_CTRL2_QSEL GENMASK(27, 25) +#define MICFIL_QSEL_MEDIUM_QUALITY 0 +#define MICFIL_QSEL_HIGH_QUALITY 1 +#define MICFIL_QSEL_LOW_QUALITY 7 +#define MICFIL_QSEL_VLOW0_QUALITY 6 +#define MICFIL_QSEL_VLOW1_QUALITY 5 +#define MICFIL_QSEL_VLOW2_QUALITY 4

+#define MICFIL_CTRL2_CICOSR GENMASK(19, 16) +#define MICFIL_CTRL2_CICOSR_DEFAULT 0 +#define MICFIL_CTRL2_CLKDIV GENMASK(7, 0)

/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */ #define MICFIL_STAT_BSY_FIL BIT(31) #define MICFIL_STAT_FIR_RDY BIT(30) #define MICFIL_STAT_LOWFREQF BIT(29) -#define MICFIL_STAT_CHXF_SHIFT(v) (v) -#define MICFIL_STAT_CHXF_MASK(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) -#define MICFIL_STAT_CHXF(v) BIT(MICFIL_STAT_CHXF_SHIFT(v)) +#define MICFIL_STAT_CHXF(ch) BIT(ch)

/* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */ -#define MICFIL_FIFO_CTRL_FIFOWMK_SHIFT 0 -#define MICFIL_FIFO_CTRL_FIFOWMK_WIDTH 3 -#define MICFIL_FIFO_CTRL_FIFOWMK_MASK ((BIT(MICFIL_FIFO_CTRL_FIFOWMK_WIDTH) - 1) \
                                   << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT)
-#define MICFIL_FIFO_CTRL_FIFOWMK(v) (((v) << MICFIL_FIFO_CTRL_FIFOWMK_SHIFT) \
                                   & MICFIL_FIFO_CTRL_FIFOWMK_MASK)
+#define MICFIL_FIFO_CTRL_FIFOWMK GENMASK(2, 0)

/* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */ -#define MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v) (v) -#define MICFIL_FIFO_STAT_FIFOX_OVER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_OVER_SHIFT(v)) -#define MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v) ((v) + 8) -#define MICFIL_FIFO_STAT_FIFOX_UNDER_MASK(v) BIT(MICFIL_FIFO_STAT_FIFOX_UNDER_SHIFT(v)) +#define MICFIL_FIFO_STAT_FIFOX_OVER(ch) BIT(ch) +#define MICFIL_FIFO_STAT_FIFOX_UNDER(ch) BIT((ch) + 8)

/* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/ -#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT 24 -#define MICFIL_VAD0_CTRL1_CHSEL_WIDTH 3 -#define MICFIL_VAD0_CTRL1_CHSEL_MASK ((BIT(MICFIL_VAD0_CTRL1_CHSEL_WIDTH) - 1) \
                                   << MICFIL_VAD0_CTRL1_CHSEL_SHIFT)
-#define MICFIL_VAD0_CTRL1_CHSEL(v) (((v) << MICFIL_VAD0_CTRL1_CHSEL_SHIFT) \
                                   & MICFIL_VAD0_CTRL1_CHSEL_MASK)
-#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT 16 -#define MICFIL_VAD0_CTRL1_CICOSR_WIDTH 4 -#define MICFIL_VAD0_CTRL1_CICOSR_MASK ((BIT(MICFIL_VAD0_CTRL1_CICOSR_WIDTH) - 1) \
                                   << MICFIL_VAD0_CTRL1_CICOSR_SHIFT)
-#define MICFIL_VAD0_CTRL1_CICOSR(v) (((v) << MICFIL_VAD0_CTRL1_CICOSR_SHIFT) \
                                   & MICFIL_VAD0_CTRL1_CICOSR_MASK)
-#define MICFIL_VAD0_CTRL1_INITT_SHIFT 8 -#define MICFIL_VAD0_CTRL1_INITT_WIDTH 5 -#define MICFIL_VAD0_CTRL1_INITT_MASK ((BIT(MICFIL_VAD0_CTRL1_INITT_WIDTH) - 1) \
                                   << MICFIL_VAD0_CTRL1_INITT_SHIFT)
-#define MICFIL_VAD0_CTRL1_INITT(v) (((v) << MICFIL_VAD0_CTRL1_INITT_SHIFT) \
                                   & MICFIL_VAD0_CTRL1_INITT_MASK)
+#define MICFIL_VAD0_CTRL1_CHSEL_SHIFT GENMASK(26, 24) +#define MICFIL_VAD0_CTRL1_CICOSR_SHIFT GENMASK(19, 16) +#define MICFIL_VAD0_CTRL1_INITT_SHIFT GENMASK(12, 8) #define MICFIL_VAD0_CTRL1_ST10 BIT(4) #define MICFIL_VAD0_CTRL1_ERIE BIT(3) #define MICFIL_VAD0_CTRL1_IE BIT(2) @@ -125,66 +88,26 @@ #define MICFIL_VAD0_CTRL2_FRENDIS BIT(31) #define MICFIL_VAD0_CTRL2_PREFEN BIT(30) #define MICFIL_VAD0_CTRL2_FOUTDIS BIT(28) -#define MICFIL_VAD0_CTRL2_FRAMET_SHIFT 16 -#define MICFIL_VAD0_CTRL2_FRAMET_WIDTH 6 -#define MICFIL_VAD0_CTRL2_FRAMET_MASK ((BIT(MICFIL_VAD0_CTRL2_FRAMET_WIDTH) - 1) \
                                   << MICFIL_VAD0_CTRL2_FRAMET_SHIFT)
-#define MICFIL_VAD0_CTRL2_FRAMET(v) (((v) << MICFIL_VAD0_CTRL2_FRAMET_SHIFT) \
                                   & MICFIL_VAD0_CTRL2_FRAMET_MASK)
-#define MICFIL_VAD0_CTRL2_INPGAIN_SHIFT 8 -#define MICFIL_VAD0_CTRL2_INPGAIN_WIDTH 4 -#define MICFIL_VAD0_CTRL2_INPGAIN_MASK ((BIT(MICFIL_VAD0_CTRL2_INPGAIN_WIDTH) - 1) \
                                   <<
MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) -#define MICFIL_VAD0_CTRL2_INPGAIN(v) (((v) << MICFIL_VAD0_CTRL2_INPGAIN_SHIFT) \
                                  & MICFIL_VAD0_CTRL2_INPGAIN_MASK)
-#define MICFIL_VAD0_CTRL2_HPF_SHIFT 0 -#define MICFIL_VAD0_CTRL2_HPF_WIDTH 2 -#define MICFIL_VAD0_CTRL2_HPF_MASK ((BIT(MICFIL_VAD0_CTRL2_HPF_WIDTH)
\
                                   << MICFIL_VAD0_CTRL2_HPF_SHIFT)
-#define MICFIL_VAD0_CTRL2_HPF(v) (((v) << MICFIL_VAD0_CTRL2_HPF_SHIFT) \
                                   & MICFIL_VAD0_CTRL2_HPF_MASK)
+#define MICFIL_VAD0_CTRL2_FRAMET GENMASK(21, 16) +#define MICFIL_VAD0_CTRL2_INPGAIN GENMASK(11, 8) +#define MICFIL_VAD0_CTRL2_HPF GENMASK(1, 0)

/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */ #define MICFIL_VAD0_SCONFIG_SFILEN BIT(31) #define MICFIL_VAD0_SCONFIG_SMAXEN BIT(30) -#define MICFIL_VAD0_SCONFIG_SGAIN_SHIFT 0 -#define MICFIL_VAD0_SCONFIG_SGAIN_WIDTH 4 -#define MICFIL_VAD0_SCONFIG_SGAIN_MASK ((BIT(MICFIL_VAD0_SCONFIG_SGAIN_WIDTH) - 1) \
                                          <<
MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) -#define MICFIL_VAD0_SCONFIG_SGAIN(v) (((v) << MICFIL_VAD0_SCONFIG_SGAIN_SHIFT) \
                                           &
MICFIL_VAD0_SCONFIG_SGAIN_MASK) +#define MICFIL_VAD0_SCONFIG_SGAIN GENMASK(3, 0)

/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */ #define MICFIL_VAD0_NCONFIG_NFILAUT BIT(31) #define MICFIL_VAD0_NCONFIG_NMINEN BIT(30) #define MICFIL_VAD0_NCONFIG_NDECEN BIT(29) #define MICFIL_VAD0_NCONFIG_NOREN BIT(28) -#define MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT 8 -#define MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH 5 -#define MICFIL_VAD0_NCONFIG_NFILADJ_MASK ((BIT(MICFIL_VAD0_NCONFIG_NFILADJ_WIDTH) - 1) \
                                           <<
MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) -#define MICFIL_VAD0_NCONFIG_NFILADJ(v) (((v) << MICFIL_VAD0_NCONFIG_NFILADJ_SHIFT) \
                                           &
MICFIL_VAD0_NCONFIG_NFILADJ_MASK) -#define MICFIL_VAD0_NCONFIG_NGAIN_SHIFT 0 -#define MICFIL_VAD0_NCONFIG_NGAIN_WIDTH 4 -#define MICFIL_VAD0_NCONFIG_NGAIN_MASK ((BIT(MICFIL_VAD0_NCONFIG_NGAIN_WIDTH) - 1) \
                                           <<
MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) -#define MICFIL_VAD0_NCONFIG_NGAIN(v) (((v) << MICFIL_VAD0_NCONFIG_NGAIN_SHIFT) \
                                           &
MICFIL_VAD0_NCONFIG_NGAIN_MASK) +#define MICFIL_VAD0_NCONFIG_NFILADJ GENMASK(12, 8) +#define MICFIL_VAD0_NCONFIG_NGAIN GENMASK(3, 0)

/* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */ -#define MICFIL_VAD0_ZCD_ZCDTH_SHIFT 16 -#define MICFIL_VAD0_ZCD_ZCDTH_WIDTH 10 -#define MICFIL_VAD0_ZCD_ZCDTH_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDTH_WIDTH)
\
                                   << MICFIL_VAD0_ZCD_ZCDTH_SHIFT)
-#define MICFIL_VAD0_ZCD_ZCDTH(v) (((v) << MICFIL_VAD0_ZCD_ZCDTH_SHIFT)\
                                   & MICFIL_VAD0_ZCD_ZCDTH_MASK)
-#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT 8 -#define MICFIL_VAD0_ZCD_ZCDADJ_WIDTH 4 -#define MICFIL_VAD0_ZCD_ZCDADJ_MASK ((BIT(MICFIL_VAD0_ZCD_ZCDADJ_WIDTH) - 1)\
                                   << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)
-#define MICFIL_VAD0_ZCD_ZCDADJ(v) (((v) << MICFIL_VAD0_ZCD_ZCDADJ_SHIFT)\
                                   & MICFIL_VAD0_ZCD_ZCDADJ_MASK)
+#define MICFIL_VAD0_ZCD_ZCDTH GENMASK(25, 16) +#define MICFIL_VAD0_ZCD_ZCDADJ_SHIFT GENMASK(11, 8) #define MICFIL_VAD0_ZCD_ZCDAND BIT(4) #define MICFIL_VAD0_ZCD_ZCDAUT BIT(2) #define MICFIL_VAD0_ZCD_ZCDEN BIT(0) @@ -199,11 +122,6 @@ #define MICFIL_OUTGAIN_CHX_SHIFT(v) (4 * (v))

/* Constants */ -#define MICFIL_DMA_IRQ_DISABLED(v) ((v) & MICFIL_CTRL1_DISEL_MASK) -#define MICFIL_DMA_ENABLED(v) ((0x1 << MICFIL_CTRL1_DISEL_SHIFT) \
                                   == ((v) &
MICFIL_CTRL1_DISEL_MASK)) -#define MICFIL_IRQ_ENABLED(v) ((0x2 << MICFIL_CTRL1_DISEL_SHIFT) \
                                   == ((v) &
MICFIL_CTRL1_DISEL_MASK)) #define MICFIL_OUTPUT_CHANNELS 8 #define MICFIL_FIFO_NUM 8

@@ -215,6 +133,5 @@ #define MICFIL_SLEEP_MIN 90000 /* in us */ #define MICFIL_SLEEP_MAX 100000 /* in us */ #define MICFIL_DMA_MAXBURST_RX 6 -#define MICFIL_CTRL2_OSR_DEFAULT (0 << MICFIL_CTRL2_CICOSR_SHIFT)

#endif /* _FSL_MICFIL_H */

2.30.2

Sascha Hauer

9:38 a.m.

New subject: [PATCH v2 05/19] ASoC: fsl_micfil: use GENMASK to define register bit fields

On Thu, Apr 07, 2022 at 10:08:38AM +0800, Shengjiu Wang wrote:

...

On Mon, Mar 28, 2022 at 7:28 PM Sascha Hauer <[1]s.hauer@pengutronix.de> wrote:

 Use GENMASK along with FIELD_PREP and FIELD_GET to access bitfields in
 registers to straighten register access and to drop a lot of defines.

 Signed-off-by: Sascha Hauer <[2]s.hauer@pengutronix.de>
 ---

 Notes:
     Changes since v1:
     - add missing include linux/bitfield.h

  sound/soc/fsl/fsl_micfil.c |  52 ++++++-------
  sound/soc/fsl/fsl_micfil.h | 147 ++++++++-----------------------------
  2 files changed, 58 insertions(+), 141 deletions(-)

 diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
 index 878d24fde3581..cfa8af668d921 100644
 --- a/sound/soc/fsl/fsl_micfil.c
 +++ b/sound/soc/fsl/fsl_micfil.c
 @@ -1,6 +1,7 @@
  // SPDX-License-Identifier: GPL-2.0
  // Copyright 2018 NXP

 +#include <linux/bitfield.h>
  #include <linux/clk.h>
  #include <linux/device.h>
  #include <linux/interrupt.h>
 @@ -116,23 +117,22 @@ static inline int get_pdm_clk(struct fsl_micfil
 *micfil,
         int bclk;

         regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg);
 -       osr = 16 - ((ctrl2_reg & MICFIL_CTRL2_CICOSR_MASK)
 -                   >> MICFIL_CTRL2_CICOSR_SHIFT);
 -       qsel = ctrl2_reg & MICFIL_CTRL2_QSEL_MASK;
 +       osr = 16 - FIELD_GET(MICFIL_CTRL2_CICOSR, ctrl2_reg);
 +       qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg);

         switch (qsel) {
 -       case MICFIL_HIGH_QUALITY:
 +       case MICFIL_QSEL_HIGH_QUALITY:
                 bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */
                 break;
 -       case MICFIL_MEDIUM_QUALITY:
 -       case MICFIL_VLOW0_QUALITY:
 +       case MICFIL_QSEL_MEDIUM_QUALITY:
 +       case MICFIL_QSEL_VLOW0_QUALITY:
                 bclk = rate * 4 * osr * 1; /* kfactor = 1 */
                 break;
 -       case MICFIL_LOW_QUALITY:
 -       case MICFIL_VLOW1_QUALITY:
 +       case MICFIL_QSEL_LOW_QUALITY:
 +       case MICFIL_QSEL_VLOW1_QUALITY:
                 bclk = rate * 2 * osr * 2; /* kfactor = 2 */
                 break;
 -       case MICFIL_VLOW2_QUALITY:
 +       case MICFIL_QSEL_VLOW2_QUALITY:
                 bclk = rate * osr * 4; /* kfactor = 4 */
                 break;
         default:
 @@ -244,8 +244,8 @@ static int fsl_micfil_trigger(struct
 snd_pcm_substream *substream, int cmd,
                  * 11 - reserved
                  */
                 ret = regmap_update_bits(micfil->regmap,
 REG_MICFIL_CTRL1,
 -                                        MICFIL_CTRL1_DISEL_MASK,
 -                                        (1 <<
 MICFIL_CTRL1_DISEL_SHIFT));
 +                               MICFIL_CTRL1_DISEL,
 +                               FIELD_PREP(MICFIL_CTRL1_DISEL,
 MICFIL_CTRL1_DISEL_DMA));

Alignment should match open parenthesis?

Generally yes, but in this case this would introduce an additional linebreak inside the FIELD_PREP macro which reduces readability:

Instead of:

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_DISEL, FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DMA));

We would have:

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_DISEL, FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DMA));

...

                 ret = regmap_update_bits(micfil->regmap,
 REG_MICFIL_CTRL1,
 -                                        MICFIL_CTRL1_DISEL_MASK,
 -                                        (0 <<
 MICFIL_CTRL1_DISEL_SHIFT));
 +                               MICFIL_CTRL1_DISEL,
 +                               FIELD_PREP(MICFIL_CTRL1_DISEL,
 MICFIL_CTRL1_DISEL_DISABLE));

Alignment should match open parenthesis?

Same here.

...

                 if (ret) {
                         dev_err(dev, "failed to update DISEL bits\n");
                         return ret;
 @@ -300,8 +300,8 @@ static int fsl_set_clock_params(struct device *dev,
 unsigned int rate)

         /* set CICOSR */
         ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,
 -                                MICFIL_CTRL2_CICOSR_MASK,
 -                                MICFIL_CTRL2_OSR_DEFAULT);
 +                                MICFIL_CTRL2_CICOSR,
 +                                FIELD_PREP(MICFIL_CTRL2_CICOSR,
 MICFIL_CTRL2_CICOSR_DEFAULT));

Alignment should match open parenthesis?

This is fixed in one of the next patches where the '|=' is replaced with '='. It reduces the number of lines changed in that patch, so I think this is ok here.

...

         if (ret)
                 dev_err(dev, "failed to set CICOSR in reg 0x%X\n",
                         REG_MICFIL_CTRL2);
 @@ -312,7 +312,8 @@ static int fsl_set_clock_params(struct device *dev,
 unsigned int rate)
                 ret = -EINVAL;

         ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,
 -                                MICFIL_CTRL2_CLKDIV_MASK, clk_div);
 +                                MICFIL_CTRL2_CLKDIV,
 +                                FIELD_PREP(MICFIL_CTRL2_CLKDIV,
 clk_div));

Alignment should match open parenthesis?

Ditto.

Sascha

Sascha Hauer

28 Mar 28 Mar

1:27 p.m.

New subject: [PATCH v2 06/19] ASoC: fsl_micfil: use clear/set bits

Instead regmap_update_bits() use the simpler variants regmap_[set|clear]_bits() where appropriate.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index cfa8af668d921..70185f75d8a04 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -168,19 +168,15 @@ static int fsl_micfil_reset(struct device *dev) struct fsl_micfil *micfil = dev_get_drvdata(dev); int ret;

- ret = regmap_update_bits(micfil->regmap, - REG_MICFIL_CTRL1, - MICFIL_CTRL1_MDIS, - 0); + ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_MDIS); if (ret) { dev_err(dev, "failed to clear MDIS bit %d\n", ret); return ret; }

- ret = regmap_update_bits(micfil->regmap, - REG_MICFIL_CTRL1, - MICFIL_CTRL1_SRES, - MICFIL_CTRL1_SRES); + ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_SRES); if (ret) { dev_err(dev, "failed to reset MICFIL: %d\n", ret); return ret; @@ -252,9 +248,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, }

/* Enable the module */ - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN, - MICFIL_CTRL1_PDMIEN); + ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN); if (ret) { dev_err(dev, "failed to enable the module\n"); return ret; @@ -265,9 +260,8 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* Disable the module */ - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN, - 0); + ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN); if (ret) { dev_err(dev, "failed to enable the module\n"); return ret; @@ -332,8 +326,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, int ret;

/* 1. Disable the module */ - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN, 0); + ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, + MICFIL_CTRL1_PDMIEN); if (ret) { dev_err(dev, "failed to disable the module\n"); return ret;

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 07/19] ASoC: fsl_micfil: drop error messages from failed register accesses

Failed register accesses are really not expected in memory mapped registers. When it fails then the register access itself is likely not the reason, so no need to have extra error messages for each regmap access. Just drop the error messages. This also fixes some places where a return value is concatenated using 'ret |=' and then returned as error value.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 53 ++++++++++---------------------------- 1 file changed, 13 insertions(+), 40 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 70185f75d8a04..b88ece31437ab 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -170,17 +170,13 @@ static int fsl_micfil_reset(struct device *dev)

ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_MDIS); - if (ret) { - dev_err(dev, "failed to clear MDIS bit %d\n", ret); + if (ret) return ret; - }

ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_SRES); - if (ret) { - dev_err(dev, "failed to reset MICFIL: %d\n", ret); + if (ret) return ret; - }

return 0; } @@ -242,18 +238,14 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_DISEL, FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DMA)); - if (ret) { - dev_err(dev, "failed to update DISEL bits\n"); + if (ret) return ret; - }

/* Enable the module */ ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_PDMIEN); - if (ret) { - dev_err(dev, "failed to enable the module\n"); + if (ret) return ret; - }

break; case SNDRV_PCM_TRIGGER_STOP: @@ -262,18 +254,14 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, /* Disable the module */ ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_PDMIEN); - if (ret) { - dev_err(dev, "failed to enable the module\n"); + if (ret) return ret; - }

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_DISEL, FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DISABLE)); - if (ret) { - dev_err(dev, "failed to update DISEL bits\n"); + if (ret) return ret; - } break; default: return -EINVAL; @@ -293,24 +281,20 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) clk_get_rate(micfil->mclk), rate);

/* set CICOSR */ - ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_CICOSR, FIELD_PREP(MICFIL_CTRL2_CICOSR, MICFIL_CTRL2_CICOSR_DEFAULT)); if (ret) - dev_err(dev, "failed to set CICOSR in reg 0x%X\n", - REG_MICFIL_CTRL2); + return ret;

/* set CLK_DIV */ clk_div = get_clk_div(micfil, rate); if (clk_div < 0) ret = -EINVAL;

- ret |= regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_CLKDIV, FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div)); - if (ret) - dev_err(dev, "failed to set CLKDIV in reg 0x%X\n", - REG_MICFIL_CTRL2);

return ret; } @@ -328,19 +312,14 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, /* 1. Disable the module */ ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1, MICFIL_CTRL1_PDMIEN); - if (ret) { - dev_err(dev, "failed to disable the module\n"); + if (ret) return ret; - }

/* enable channels */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1, 0xFF, ((1 << channels) - 1)); - if (ret) { - dev_err(dev, "failed to enable channels %d, reg 0x%X\n", ret, - REG_MICFIL_CTRL1); + if (ret) return ret; - }

ret = fsl_set_clock_params(dev, rate); if (ret < 0) { @@ -362,7 +341,6 @@ static const struct snd_soc_dai_ops fsl_micfil_dai_ops = { static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); - struct device *dev = cpu_dai->dev; int ret; int i;

@@ -370,11 +348,8 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_QSEL, FIELD_PREP(MICFIL_CTRL2_QSEL, MICFIL_QSEL_MEDIUM_QUALITY)); - if (ret) { - dev_err(dev, "failed to set quality mode bits, reg 0x%X\n", - REG_MICFIL_CTRL2); + if (ret) return ret; - }

/* set default gain to max_gain */ regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x77777777); @@ -388,10 +363,8 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL, MICFIL_FIFO_CTRL_FIFOWMK, FIELD_PREP(MICFIL_FIFO_CTRL_FIFOWMK, micfil->soc->fifo_depth - 1)); - if (ret) { - dev_err(dev, "failed to set FIFOWMK\n"); + if (ret) return ret; - }

return 0; }

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 08/19] ASoC: fsl_micfil: drop unused variables

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 6 ------ 1 file changed, 6 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index b88ece31437ab..ffca56d72562d 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -38,10 +38,7 @@ struct fsl_micfil { unsigned int dataline; char name[32]; int irq[MICFIL_IRQ_LINES]; - unsigned int mclk_streams; int quality; /*QUALITY 2-0 bits */ - bool slave_mode; - int channel_gain[8]; };

struct fsl_micfil_soc_data { @@ -342,7 +339,6 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); int ret; - int i;

/* set qsel to medium */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, @@ -353,8 +349,6 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai)

/* set default gain to max_gain */ regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x77777777); - for (i = 0; i < 8; i++) - micfil->channel_gain[i] = 0xF;

snd_soc_dai_init_dma_data(cpu_dai, NULL, &micfil->dma_params_rx);

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 09/19] dma: imx-sdma: error out on unsupported transfer types

The i.MX SDMA driver currently silently ignores unsupported transfer types. These transfer types are specified in the dma channel description in the device tree, so they should really be checked. Issue a message and error out when we hit unsupported transfer types.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- drivers/dma/imx-sdma.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 75ec0754d4ad4..1038f6bc7f846 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -924,7 +924,7 @@ static irqreturn_t sdma_int_handler(int irq, void *dev_id) /* * sets the pc of SDMA script according to the peripheral type */ -static void sdma_get_pc(struct sdma_channel *sdmac, +static int sdma_get_pc(struct sdma_channel *sdmac, enum sdma_peripheral_type peripheral_type) { struct sdma_engine *sdma = sdmac->sdma; @@ -1023,13 +1023,17 @@ static void sdma_get_pc(struct sdma_channel *sdmac, emi_2_per = sdma->script_addrs->ext_mem_2_ipu_addr; break; default: - break; + dev_err(sdma->dev, "Unsupported transfer type %d\n", + peripheral_type); + return -EINVAL; }

sdmac->pc_from_device = per_2_emi; sdmac->pc_to_device = emi_2_per; sdmac->device_to_device = per_2_per; sdmac->pc_to_pc = emi_2_emi; + + return 0; }

static int sdma_load_context(struct sdma_channel *sdmac) @@ -1197,6 +1201,7 @@ static void sdma_set_watermarklevel_for_p2p(struct sdma_channel *sdmac) static int sdma_config_channel(struct dma_chan *chan) { struct sdma_channel *sdmac = to_sdma_chan(chan); + int ret;

sdma_disable_channel(chan);

@@ -1217,7 +1222,9 @@ static int sdma_config_channel(struct dma_chan *chan) break; }

- sdma_get_pc(sdmac, sdmac->peripheral_type); + ret = sdma_get_pc(sdmac, sdmac->peripheral_type); + if (ret) + return ret;

if ((sdmac->peripheral_type != IMX_DMATYPE_MEMORY) && (sdmac->peripheral_type != IMX_DMATYPE_DSP)) { @@ -1333,7 +1340,9 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan) mem_data.dma_request2 = 0; data = &mem_data;

- sdma_get_pc(sdmac, IMX_DMATYPE_MEMORY); + ret = sdma_get_pc(sdmac, IMX_DMATYPE_MEMORY); + if (ret) + return ret; }

switch (data->priority) {

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de ---

Notes: Changes since v1: - Drop unused variable sw_done_sel - Evaluate sdmac->direction directly instead of storing value in n_fifos

drivers/dma/imx-sdma.c | 57 +++++++++++++++++++++++++++ include/linux/platform_data/dma-imx.h | 7 ++++ 2 files changed, 64 insertions(+)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 1038f6bc7f846..f08c409231b7b 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -14,6 +14,7 @@ #include <linux/iopoll.h> #include <linux/module.h> #include <linux/types.h> +#include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/mm.h> #include <linux/interrupt.h> @@ -73,6 +74,7 @@ #define SDMA_CHNENBL0_IMX35 0x200 #define SDMA_CHNENBL0_IMX31 0x080 #define SDMA_CHNPRI_0 0x100 +#define SDMA_DONE0_CONFIG 0x1000

/* * Buffer descriptor status values. @@ -180,6 +182,12 @@ BIT(DMA_MEM_TO_DEV) | \ BIT(DMA_DEV_TO_DEV))

+#define SDMA_WATERMARK_LEVEL_N_FIFOS GENMASK(15, 12) +#define SDMA_WATERMARK_LEVEL_SW_DONE BIT(23) + +#define SDMA_DONE0_CONFIG_DONE_SEL BIT(7) +#define SDMA_DONE0_CONFIG_DONE_DIS BIT(6) + /** * struct sdma_script_start_addrs - SDMA script start pointers * @@ -441,6 +449,9 @@ struct sdma_channel { struct work_struct terminate_worker; struct list_head terminated; bool is_ram_script; + unsigned int n_fifos_src; + unsigned int n_fifos_dst; + bool sw_done; };

#define IMX_DMA_SG_LOOP BIT(0) @@ -773,6 +784,14 @@ static void sdma_event_enable(struct sdma_channel *sdmac, unsigned int event) val = readl_relaxed(sdma->regs + chnenbl); __set_bit(channel, &val); writel_relaxed(val, sdma->regs + chnenbl); + + /* Set SDMA_DONEx_CONFIG is sw_done enabled */ + if (sdmac->sw_done) { + val = readl_relaxed(sdma->regs + SDMA_DONE0_CONFIG); + val |= SDMA_DONE0_CONFIG_DONE_SEL; + val &= ~SDMA_DONE0_CONFIG_DONE_DIS; + writel_relaxed(val, sdma->regs + SDMA_DONE0_CONFIG); + } }

static void sdma_event_disable(struct sdma_channel *sdmac, unsigned int event) @@ -1022,6 +1041,10 @@ static int sdma_get_pc(struct sdma_channel *sdmac, case IMX_DMATYPE_IPU_MEMORY: emi_2_per = sdma->script_addrs->ext_mem_2_ipu_addr; break; + case IMX_DMATYPE_MULTI_SAI: + per_2_emi = sdma->script_addrs->sai_2_mcu_addr; + emi_2_per = sdma->script_addrs->mcu_2_sai_addr; + break; default: dev_err(sdma->dev, "Unsupported transfer type %d\n", peripheral_type); @@ -1198,6 +1221,22 @@ static void sdma_set_watermarklevel_for_p2p(struct sdma_channel *sdmac) sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_CONT; }

+static void sdma_set_watermarklevel_for_sais(struct sdma_channel *sdmac) +{ + unsigned int n_fifos; + + if (sdmac->sw_done) + sdmac->watermark_level |= SDMA_WATERMARK_LEVEL_SW_DONE; + + if (sdmac->direction == DMA_DEV_TO_MEM) + n_fifos = sdmac->n_fifos_src; + else + n_fifos = sdmac->n_fifos_dst; + + sdmac->watermark_level |= + FIELD_PREP(SDMA_WATERMARK_LEVEL_N_FIFOS, n_fifos); +} + static int sdma_config_channel(struct dma_chan *chan) { struct sdma_channel *sdmac = to_sdma_chan(chan); @@ -1234,6 +1273,10 @@ static int sdma_config_channel(struct dma_chan *chan) sdmac->peripheral_type == IMX_DMATYPE_ASRC) sdma_set_watermarklevel_for_p2p(sdmac); } else { + if (sdmac->peripheral_type == + IMX_DMATYPE_MULTI_SAI) + sdma_set_watermarklevel_for_sais(sdmac); + __set_bit(sdmac->event_id0, sdmac->event_mask); }

@@ -1691,9 +1734,23 @@ static int sdma_config(struct dma_chan *chan, struct dma_slave_config *dmaengine_cfg) { struct sdma_channel *sdmac = to_sdma_chan(chan); + struct sdma_engine *sdma = sdmac->sdma;

memcpy(&sdmac->slave_config, dmaengine_cfg, sizeof(*dmaengine_cfg));

+ if (dmaengine_cfg->peripheral_config) { + struct sdma_peripheral_config *sdmacfg = dmaengine_cfg->peripheral_config; + if (dmaengine_cfg->peripheral_size != sizeof(struct sdma_peripheral_config)) { + dev_err(sdma->dev, "Invalid peripheral size %zu, expected %zu\n", + dmaengine_cfg->peripheral_size, + sizeof(struct sdma_peripheral_config)); + return -EINVAL; + } + sdmac->n_fifos_src = sdmacfg->n_fifos_src; + sdmac->n_fifos_dst = sdmacfg->n_fifos_dst; + sdmac->sw_done = sdmacfg->sw_done; + } + /* Set ENBLn earlier to make sure dma request triggered after that */ if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) return -EINVAL; diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */ + IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */ };

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config { + int n_fifos_src; + int n_fifos_dst; + bool sw_done; +}; + #endif

-- 2.30.2

Fabio Estevam

29 Mar 29 Mar

12:55 p.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

Hi Sascha,

On Mon, Mar 28, 2022 at 8:28 AM Sascha Hauer s.hauer@pengutronix.de wrote:

...

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

Please add a commit log, thanks.

Sascha Hauer

30 Mar 30 Mar

9:49 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

Hi Fabio,

On Tue, Mar 29, 2022 at 07:55:45AM -0300, Fabio Estevam wrote:

...

Hi Sascha,

On Mon, Mar 28, 2022 at 8:28 AM Sascha Hauer s.hauer@pengutronix.de wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

Please add a commit log, thanks.

oh, sure. Will add this:

The i.MX SDMA engine can read from / write to multiple successive hardware FIFO registers, referred to as "Multi FIFO support". This is needed for the micfil driver and certain configurations of the SAI driver. This patch adds support for this feature.

The number of FIFOs to read from / write to must be communicated from the client driver to the SDMA engine. For this the struct dma_slave_config::peripheral_config field is used.

Sascha

Vinod Koul

31 Mar 31 Mar

7:26 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On 28-03-22, 13:27, Sascha Hauer wrote:

...

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Also is this patch dependent on rest of the series, if not consider sending separately

...

diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

Can you explain this structure and why this is required? What do these fields refer to..?

-- ~Vinod

Sascha Hauer

8:49 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On Thu, Mar 31, 2022 at 10:56:09AM +0530, Vinod Koul wrote:

...

On 28-03-22, 13:27, Sascha Hauer wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Ok.

...

Also is this patch dependent on rest of the series, if not consider sending separately

The rest of this series indeed depends on this patch.

...

...
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

I'm not sure what you are referring to as platform_data. This is not the classical platform_data that is attached to a platform_device to configure behaviour of that device. It is rather data that needs to be communicated from the clients of the SDMA engine to the SDMA engine.

I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

...

Can you explain this structure and why this is required? What do these fields refer to..?

The reasoning for this structure is described in the commit message that I have forgotten:

The number of FIFOs to read from / write to must be communicated from the client driver to the SDMA engine. For this the struct dma_slave_config::peripheral_config field is used.

I can describe the individual fields of struct sdma_peripheral_config in the header file if that's your point.

Sascha

Vinod Koul

8:54 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On 31-03-22, 08:49, Sascha Hauer wrote:

...

On Thu, Mar 31, 2022 at 10:56:09AM +0530, Vinod Koul wrote:

...
On 28-03-22, 13:27, Sascha Hauer wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Ok.

...
Also is this patch dependent on rest of the series, if not consider sending separately

The rest of this series indeed depends on this patch.

...
...
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

I'm not sure what you are referring to as platform_data. This is not the classical platform_data that is attached to a platform_device to configure behaviour of that device. It is rather data that needs to be communicated from the clients of the SDMA engine to the SDMA engine.

I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

...

...
Can you explain this structure and why this is required? What do these fields refer to..?

The reasoning for this structure is described in the commit message that I have forgotten:
The i.MX SDMA engine can read from / write to multiple successive
hardware FIFO registers, referred to as "Multi FIFO support". This is
needed for the micfil driver and certain configurations of the SAI
driver. This patch adds support for this feature.

The number of FIFOs to read from / write to must be communicated from
the client driver to the SDMA engine. For this the struct
dma_slave_config::peripheral_config field is used.
I can describe the individual fields of struct sdma_peripheral_config in the header file if that's your point.

So you need to know the number of fifo right, what does sw_done imply?

Also if this is hardware information, why not use dma-cells for this?

-- ~Vinod

Sascha Hauer

9:58 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On Thu, Mar 31, 2022 at 12:24:46PM +0530, Vinod Koul wrote:

...

On 31-03-22, 08:49, Sascha Hauer wrote:

...
On Thu, Mar 31, 2022 at 10:56:09AM +0530, Vinod Koul wrote:

...
On 28-03-22, 13:27, Sascha Hauer wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Ok.

...
Also is this patch dependent on rest of the series, if not consider sending separately

The rest of this series indeed depends on this patch.

...
...
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

I'm not sure what you are referring to as platform_data. This is not the classical platform_data that is attached to a platform_device to configure behaviour of that device. It is rather data that needs to be communicated from the clients of the SDMA engine to the SDMA engine.

I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

Ok.

...

...
...
Can you explain this structure and why this is required? What do these fields refer to..?

The reasoning for this structure is described in the commit message that I have forgotten:
The i.MX SDMA engine can read from / write to multiple successive
hardware FIFO registers, referred to as "Multi FIFO support". This is
needed for the micfil driver and certain configurations of the SAI
driver. This patch adds support for this feature.

The number of FIFOs to read from / write to must be communicated from
the client driver to the SDMA engine. For this the struct
dma_slave_config::peripheral_config field is used.
I can describe the individual fields of struct sdma_peripheral_config in the header file if that's your point.
So you need to know the number of fifo right, what does sw_done imply?

Honestly I don't know. Setting sw_done results in the DONE_SEL0 bit in the SDMA engine being set. This is described in the reference manual as:

DONE_SEL0 Select Done from SW or HW for channel 0 0 HW 1 SW

I can only assume that the signaling when a channel has transferred enough data (the generation of the channel done interrupt?) can either be done in hardware or in software in the SDMA engine. What I can tell for sure is that I need this bit set ;)

...

Also if this is hardware information, why not use dma-cells for this?

The information is not static. For the micfil the number of fifos equals the number of channels that are recorded, see next patch:

+ micfil->dma_params_rx.peripheral_config = &micfil->sdmacfg; + micfil->dma_params_rx.peripheral_size = sizeof(micfil->sdmacfg); + micfil->sdmacfg.n_fifos_src = channels; + micfil->sdmacfg.sw_done = true;

Sascha

Vinod Koul

7 Apr 7 Apr

9:22 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On 31-03-22, 09:58, Sascha Hauer wrote:

...

On Thu, Mar 31, 2022 at 12:24:46PM +0530, Vinod Koul wrote:

...
On 31-03-22, 08:49, Sascha Hauer wrote:

...
On Thu, Mar 31, 2022 at 10:56:09AM +0530, Vinod Koul wrote:

...
On 28-03-22, 13:27, Sascha Hauer wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Ok.

...
Also is this patch dependent on rest of the series, if not consider sending separately

The rest of this series indeed depends on this patch.

...
...
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

I'm not sure what you are referring to as platform_data. This is not the classical platform_data that is attached to a platform_device to configure behaviour of that device. It is rather data that needs to be communicated from the clients of the SDMA engine to the SDMA engine.

I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

Ok.

...
...
...
Can you explain this structure and why this is required? What do these fields refer to..?

The reasoning for this structure is described in the commit message that I have forgotten:
The i.MX SDMA engine can read from / write to multiple successive
hardware FIFO registers, referred to as "Multi FIFO support". This is
needed for the micfil driver and certain configurations of the SAI
driver. This patch adds support for this feature.

The number of FIFOs to read from / write to must be communicated from
the client driver to the SDMA engine. For this the struct
dma_slave_config::peripheral_config field is used.
I can describe the individual fields of struct sdma_peripheral_config in the header file if that's your point.
So you need to know the number of fifo right, what does sw_done imply?
Honestly I don't know. Setting sw_done results in the DONE_SEL0 bit in the SDMA engine being set. This is described in the reference manual as:

DONE_SEL0 Select Done from SW or HW for channel 0 0 HW 1 SW

I can only assume that the signaling when a channel has transferred enough data (the generation of the channel done interrupt?) can either be done in hardware or in software in the SDMA engine. What I can tell for sure is that I need this bit set ;)

That does sound like a mechanism to tell that transfer is done aka handshaking aka interrupt line.

-- ~Vinod

Sascha Hauer

1 Apr 1 Apr

2:01 p.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On Thu, Mar 31, 2022 at 12:24:46PM +0530, Vinod Koul wrote:

...

On 31-03-22, 08:49, Sascha Hauer wrote:

...
On Thu, Mar 31, 2022 at 10:56:09AM +0530, Vinod Koul wrote:

...
On 28-03-22, 13:27, Sascha Hauer wrote:

...
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

it is dmaengine: xxx

Ok.

...
Also is this patch dependent on rest of the series, if not consider sending separately

The rest of this series indeed depends on this patch.

...
...
diff --git a/include/linux/platform_data/dma-imx.h b/include/linux/platform_data/dma-imx.h index 281adbb26e6bd..4a43a048e1b4d 100644 --- a/include/linux/platform_data/dma-imx.h +++ b/include/linux/platform_data/dma-imx.h @@ -39,6 +39,7 @@ enum sdma_peripheral_type { IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ IMX_DMATYPE_SAI, /* SAI */

IMX_DMATYPE_MULTI_SAI, /* MULTI FIFOs For Audio */

};

enum imx_dma_prio { @@ -65,4 +66,10 @@ static inline int imx_dma_is_general_purpose(struct dma_chan *chan) !strcmp(chan->device->dev->driver->name, "imx-dma"); }

+struct sdma_peripheral_config {

int n_fifos_src;

int n_fifos_dst;

bool sw_done;

+};

Not more platform data :(

I'm not sure what you are referring to as platform_data. This is not the classical platform_data that is attached to a platform_device to configure behaviour of that device. It is rather data that needs to be communicated from the clients of the SDMA engine to the SDMA engine.

I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

What about the other stuff in include/linux/platform_data/dma-imx.h, should this go to include/linux/dma/ as well? There is nothing in it that is platform_data at all.

Sascha

Vinod Koul

7 Apr 7 Apr

9:23 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On 01-04-22, 14:01, Sascha Hauer wrote:

...

On Thu, Mar 31, 2022 at 12:24:46PM +0530, Vinod Koul wrote:

...

...
...
I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

What about the other stuff in include/linux/platform_data/dma-imx.h, should this go to include/linux/dma/ as well? There is nothing in it that is platform_data at all.

Move that as well please, perhaps a move patch and then the new addition

-- ~Vinod

Sascha Hauer

9:41 a.m.

New subject: [PATCH v2 10/19] dma: imx-sdma: Add multi fifo support

On Thu, Apr 07, 2022 at 12:53:03PM +0530, Vinod Koul wrote:

...

On 01-04-22, 14:01, Sascha Hauer wrote:

...
On Thu, Mar 31, 2022 at 12:24:46PM +0530, Vinod Koul wrote:

...
...
...
I have put this into include/linux/platform_data/dma-imx.h because that's the only existing include file that is available. I could move this to a new file if you like that better.

Lets move to include/linux/dma/

What about the other stuff in include/linux/platform_data/dma-imx.h, should this go to include/linux/dma/ as well? There is nothing in it that is platform_data at all.

Move that as well please, perhaps a move patch and then the new addition

Did so already in v3 I sent on Tuesday ;)

Sascha

Sascha Hauer

28 Mar 28 Mar

1:27 p.m.

New subject: [PATCH v2 11/19] ASoC: fsl_micfil: add multi fifo support

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index ffca56d72562d..fe3e1319b35fd 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -16,6 +16,7 @@ #include <linux/regmap.h> #include <linux/sysfs.h> #include <linux/types.h> +#include <linux/platform_data/dma-imx.h> #include <sound/dmaengine_pcm.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -35,6 +36,7 @@ struct fsl_micfil { struct clk *busclk; struct clk *mclk; struct snd_dmaengine_dai_dma_data dma_params_rx; + struct sdma_peripheral_config sdmacfg; unsigned int dataline; char name[32]; int irq[MICFIL_IRQ_LINES]; @@ -324,6 +326,10 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return ret; }

return 0;

-- 2.30.2

Sascha Hauer

30 Mar 30 Mar

9:50 a.m.

New subject: [PATCH v2 11/19] ASoC: fsl_micfil: add multi fifo support

On Mon, Mar 28, 2022 at 01:27:36PM +0200, Sascha Hauer wrote:

...

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de

This also lacks a commit message. Will add:

The micfil hardware provides the microphone data on multiple successive FIFO registers, one register per stereo pair. Also to work properly the SDMA_DONE0_CONFIG_DONE_SEL bit in the SDMA engines SDMA_DONE0_CONFIG register must be set. This patch provides the necessary information to the SDMA engine driver.

Sascha

...

sound/soc/fsl/fsl_micfil.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index ffca56d72562d..fe3e1319b35fd 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -16,6 +16,7 @@ #include <linux/regmap.h> #include <linux/sysfs.h> #include <linux/types.h> +#include <linux/platform_data/dma-imx.h> #include <sound/dmaengine_pcm.h> #include <sound/pcm.h> #include <sound/soc.h> @@ -35,6 +36,7 @@ struct fsl_micfil { struct clk *busclk; struct clk *mclk; struct snd_dmaengine_dai_dma_data dma_params_rx;

struct sdma_peripheral_config sdmacfg; unsigned int dataline; char name[32]; int irq[MICFIL_IRQ_LINES];

@@ -324,6 +326,10 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return ret; }

micfil->dma_params_rx.peripheral_config = &micfil->sdmacfg;

micfil->dma_params_rx.peripheral_size = sizeof(micfil->sdmacfg);

micfil->sdmacfg.n_fifos_src = channels;

micfil->sdmacfg.sw_done = true; micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX;

return 0;

-- 2.30.2

Sascha Hauer

28 Mar 28 Mar

1:27 p.m.

New subject: [PATCH v2 12/19] ASoC: fsl_micfil: use define for OSR default value

The OSR (OverSampling Rate) setting is set once to the default value and never changed throughout the driver. Nevertheless the value is read back from the register for further calculations. Just use the default value because we know what we have written.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 10 ++++++---- sound/soc/fsl/fsl_micfil.h | 1 - 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index fe3e1319b35fd..4b4b7fbbf5c4f 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -29,6 +29,8 @@ #define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 #define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)

+#define MICFIL_OSR_DEFAULT 16 + struct fsl_micfil { struct platform_device *pdev; struct regmap *regmap; @@ -41,6 +43,7 @@ struct fsl_micfil { char name[32]; int irq[MICFIL_IRQ_LINES]; int quality; /*QUALITY 2-0 bits */ + unsigned int osr; };

struct fsl_micfil_soc_data { @@ -112,11 +115,11 @@ static inline int get_pdm_clk(struct fsl_micfil *micfil, unsigned int rate) { u32 ctrl2_reg; - int qsel, osr; + int qsel; int bclk; + int osr = MICFIL_OSR_DEFAULT;

regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); - osr = 16 - FIELD_GET(MICFIL_CTRL2_CICOSR, ctrl2_reg); qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg);

switch (qsel) { @@ -282,7 +285,7 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) /* set CICOSR */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_CICOSR, - FIELD_PREP(MICFIL_CTRL2_CICOSR, MICFIL_CTRL2_CICOSR_DEFAULT)); + FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - MICFIL_OSR_DEFAULT)); if (ret) return ret;

@@ -673,7 +676,6 @@ static int fsl_micfil_probe(struct platform_device *pdev) micfil->dma_params_rx.addr = res->start + REG_MICFIL_DATACH0; micfil->dma_params_rx.maxburst = MICFIL_DMA_MAXBURST_RX;

- platform_set_drvdata(pdev, micfil);

pm_runtime_enable(&pdev->dev); diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h index 5cecae2519795..08901827047db 100644 --- a/sound/soc/fsl/fsl_micfil.h +++ b/sound/soc/fsl/fsl_micfil.h @@ -58,7 +58,6 @@ #define MICFIL_QSEL_VLOW2_QUALITY 4

#define MICFIL_CTRL2_CICOSR GENMASK(19, 16) -#define MICFIL_CTRL2_CICOSR_DEFAULT 0 #define MICFIL_CTRL2_CLKDIV GENMASK(7, 0)

/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 13/19] ASoC: fsl_micfil: Drop get_pdm_clk()

get_pdm_clk() calculates the PDM clock based on the quality setting, but really the PDM clock is independent of the quality, it's always rate * 4 * micfil->osr. Just drop the function and do the calculation in the caller.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 38 +------------------------------------- 1 file changed, 1 insertion(+), 37 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 4b4b7fbbf5c4f..8335646a84d17 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -111,42 +111,6 @@ static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { snd_soc_get_enum_double, snd_soc_put_enum_double), };

-static inline int get_pdm_clk(struct fsl_micfil *micfil, - unsigned int rate) -{ - u32 ctrl2_reg; - int qsel; - int bclk; - int osr = MICFIL_OSR_DEFAULT; - - regmap_read(micfil->regmap, REG_MICFIL_CTRL2, &ctrl2_reg); - qsel = FIELD_GET(MICFIL_CTRL2_QSEL, ctrl2_reg); - - switch (qsel) { - case MICFIL_QSEL_HIGH_QUALITY: - bclk = rate * 8 * osr / 2; /* kfactor = 0.5 */ - break; - case MICFIL_QSEL_MEDIUM_QUALITY: - case MICFIL_QSEL_VLOW0_QUALITY: - bclk = rate * 4 * osr * 1; /* kfactor = 1 */ - break; - case MICFIL_QSEL_LOW_QUALITY: - case MICFIL_QSEL_VLOW1_QUALITY: - bclk = rate * 2 * osr * 2; /* kfactor = 2 */ - break; - case MICFIL_QSEL_VLOW2_QUALITY: - bclk = rate * osr * 4; /* kfactor = 4 */ - break; - default: - dev_err(&micfil->pdev->dev, - "Please make sure you select a valid quality.\n"); - bclk = -1; - break; - } - - return bclk; -} - static inline int get_clk_div(struct fsl_micfil *micfil, unsigned int rate) { @@ -155,7 +119,7 @@ static inline int get_clk_div(struct fsl_micfil *micfil,

mclk_rate = clk_get_rate(micfil->mclk);

- clk_div = mclk_rate / (get_pdm_clk(micfil, rate) * 2); + clk_div = mclk_rate / (rate * micfil->osr * 8);

return clk_div; }

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 14/19] ASoC: fsl_micfil: simplify clock setting

The reference manual has this for calculating the micfil internal clock divider:

MICFIL Clock rate clkdiv = ----------------- 8 * OSR * outrate

(with OSR == Oversampling Rate, outrate == output sample rate)

The driver first sets the MICFIL Clock rate to (outrate * 1024) and then calculates back the clkdiv value from the above calculation.

Simplify this by using a fixed clkdiv value of 8 and set the MICFIL Clock rate to (outrate * clkdiv * OSR * 8).

While at it drop disabling the clock before setting its rate. The MICFIL module is disabled when the rate is changed and it is also resetted before it is started again, so I doubt it's necessary to disable the clock.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 45 ++++---------------------------------- 1 file changed, 4 insertions(+), 41 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 8335646a84d17..fd3b168a38661 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -111,19 +111,6 @@ static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { snd_soc_get_enum_double, snd_soc_put_enum_double), };

-static inline int get_clk_div(struct fsl_micfil *micfil, - unsigned int rate) -{ - long mclk_rate; - int clk_div; - - mclk_rate = clk_get_rate(micfil->mclk); - - clk_div = mclk_rate / (rate * micfil->osr * 8); - - return clk_div; -} - /* The SRES is a self-negated bit which provides the CPU with the * capability to initialize the PDM Interface module through the * slave-bus interface. This bit always reads as zero, and this @@ -147,24 +134,6 @@ static int fsl_micfil_reset(struct device *dev) return 0; }

-static int fsl_micfil_set_mclk_rate(struct fsl_micfil *micfil, - unsigned int freq) -{ - struct device *dev = &micfil->pdev->dev; - int ret; - - clk_disable_unprepare(micfil->mclk); - - ret = clk_set_rate(micfil->mclk, freq * 1024); - if (ret) - dev_warn(dev, "failed to set rate (%u): %d\n", - freq * 1024, ret); - - clk_prepare_enable(micfil->mclk); - - return ret; -} - static int fsl_micfil_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { @@ -238,13 +207,12 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, static int fsl_set_clock_params(struct device *dev, unsigned int rate) { struct fsl_micfil *micfil = dev_get_drvdata(dev); - int clk_div; + int clk_div = 8; int ret;

- ret = fsl_micfil_set_mclk_rate(micfil, rate); - if (ret < 0) - dev_err(dev, "failed to set mclk[%lu] to rate %u\n", - clk_get_rate(micfil->mclk), rate); + ret = clk_set_rate(micfil->mclk, rate * clk_div * micfil->osr * 8); + if (ret) + return ret;

/* set CICOSR */ ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, @@ -253,11 +221,6 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) if (ret) return ret;

- /* set CLK_DIV */ - clk_div = get_clk_div(micfil, rate); - if (clk_div < 0) - ret = -EINVAL; - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, MICFIL_CTRL2_CLKDIV, FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div));

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 15/19] ASoC: fsl_micfil: rework quality setting

For the quality setting the quality setting register values are directly exposed to the kcontrol and thus to userspace. This is unfortunate because the register settings contains invalid bit combinations marked as "N/A". For userspace it doesn't make much sense to be able to set these just to see that the driver responds with "Please make sure you select a valid quality." in the kernel log.

Work around this by adding get/set functions for the quality setting.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 109 ++++++++++++++++++++++++++----------- 1 file changed, 77 insertions(+), 32 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index fd3b168a38661..e28a2e2ba5c97 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -31,6 +31,15 @@

#define MICFIL_OSR_DEFAULT 16

+enum quality { + QUALITY_HIGH, + QUALITY_MEDIUM, + QUALITY_LOW, + QUALITY_VLOW0, + QUALITY_VLOW1, + QUALITY_VLOW2, +}; + struct fsl_micfil { struct platform_device *pdev; struct regmap *regmap; @@ -42,7 +51,7 @@ struct fsl_micfil { unsigned int dataline; char name[32]; int irq[MICFIL_IRQ_LINES]; - int quality; /*QUALITY 2-0 bits */ + enum quality quality; unsigned int osr; };

@@ -66,29 +75,73 @@ static const struct of_device_id fsl_micfil_dt_ids[] = { }; MODULE_DEVICE_TABLE(of, fsl_micfil_dt_ids);

-/* Table 5. Quality Modes - * Medium 0 0 0 - * High 0 0 1 - * Very Low 2 1 0 0 - * Very Low 1 1 0 1 - * Very Low 0 1 1 0 - * Low 1 1 1 - */ static const char * const micfil_quality_select_texts[] = { - "Medium", "High", - "N/A", "N/A", - "VLow2", "VLow1", - "VLow0", "Low", + [QUALITY_HIGH] = "High", + [QUALITY_MEDIUM] = "Medium", + [QUALITY_LOW] = "Low", + [QUALITY_VLOW0] = "VLow0", + [QUALITY_VLOW1] = "Vlow1", + [QUALITY_VLOW2] = "Vlow2", };

static const struct soc_enum fsl_micfil_quality_enum = - SOC_ENUM_SINGLE(REG_MICFIL_CTRL2, - MICFIL_CTRL2_QSEL_SHIFT, - ARRAY_SIZE(micfil_quality_select_texts), - micfil_quality_select_texts); + SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(micfil_quality_select_texts), + micfil_quality_select_texts);

static DECLARE_TLV_DB_SCALE(gain_tlv, 0, 100, 0);

+static int micfil_set_quality(struct fsl_micfil *micfil) +{ + u32 qsel; + + switch (micfil->quality) { + case QUALITY_HIGH: + qsel = MICFIL_QSEL_HIGH_QUALITY; + break; + case QUALITY_MEDIUM: + qsel = MICFIL_QSEL_MEDIUM_QUALITY; + break; + case QUALITY_LOW: + qsel = MICFIL_QSEL_LOW_QUALITY; + break; + case QUALITY_VLOW0: + qsel = MICFIL_QSEL_VLOW0_QUALITY; + break; + case QUALITY_VLOW1: + qsel = MICFIL_QSEL_VLOW1_QUALITY; + break; + case QUALITY_VLOW2: + qsel = MICFIL_QSEL_VLOW2_QUALITY; + break; + } + + return regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_QSEL, + FIELD_PREP(MICFIL_CTRL2_QSEL, qsel)); +} + +static int micfil_quality_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct fsl_micfil *micfil = snd_soc_component_get_drvdata(cmpnt); + + ucontrol->value.integer.value[0] = micfil->quality; + + return 0; +} + +static int micfil_quality_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol); + struct fsl_micfil *micfil = snd_soc_component_get_drvdata(cmpnt); + + micfil->quality = ucontrol->value.integer.value[0]; + + return micfil_set_quality(micfil); +} + static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { SOC_SINGLE_SX_TLV("CH0 Volume", REG_MICFIL_OUT_CTRL, MICFIL_OUTGAIN_CHX_SHIFT(0), 0xF, 0x7, gain_tlv), @@ -108,7 +161,7 @@ static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = { MICFIL_OUTGAIN_CHX_SHIFT(7), 0xF, 0x7, gain_tlv), SOC_ENUM_EXT("MICFIL Quality Select", fsl_micfil_quality_enum, - snd_soc_get_enum_double, snd_soc_put_enum_double), + micfil_quality_get, micfil_quality_set), };

/* The SRES is a self-negated bit which provides the CPU with the @@ -208,22 +261,21 @@ static int fsl_set_clock_params(struct device *dev, unsigned int rate) { struct fsl_micfil *micfil = dev_get_drvdata(dev); int clk_div = 8; + int osr = MICFIL_OSR_DEFAULT; int ret;

- ret = clk_set_rate(micfil->mclk, rate * clk_div * micfil->osr * 8); + ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); if (ret) return ret;

- /* set CICOSR */ - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_CICOSR, - FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - MICFIL_OSR_DEFAULT)); + ret = micfil_set_quality(micfil); if (ret) return ret;

ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_CLKDIV, - FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div)); + MICFIL_CTRL2_CLKDIV | MICFIL_CTRL2_CICOSR, + FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div) | + FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - osr));

return ret; } @@ -276,13 +328,6 @@ static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); int ret;

- /* set qsel to medium */ - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_QSEL, - FIELD_PREP(MICFIL_CTRL2_QSEL, MICFIL_QSEL_MEDIUM_QUALITY)); - if (ret) - return ret; - /* set default gain to max_gain */ regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x77777777);

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 16/19] ASoC: fsl_micfil: drop unused include

The micfil driver doesn't use anything from imx-pcm.h. Drop its inclusion.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index e28a2e2ba5c97..f7742a6e6c204 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -24,7 +24,6 @@ #include <sound/core.h>

#include "fsl_micfil.h" -#include "imx-pcm.h"

#define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 #define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 17/19] ASoC: fsl_micfil: drop only once used defines

FSL_MICFIL_RATES and FSL_MICFIL_FORMATS is only used once. Drop the unnecesary indirection and use SNDRV_PCM_RATE_8000_48000 and SNDRV_PCM_FMTBIT_S16_LE directly.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index f7742a6e6c204..f536ea2db89db 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -25,9 +25,6 @@

#include "fsl_micfil.h"

-#define FSL_MICFIL_RATES SNDRV_PCM_RATE_8000_48000 -#define FSL_MICFIL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) - #define MICFIL_OSR_DEFAULT 16

enum quality { @@ -349,8 +346,8 @@ static struct snd_soc_dai_driver fsl_micfil_dai = { .stream_name = "CPU-Capture", .channels_min = 1, .channels_max = 8, - .rates = FSL_MICFIL_RATES, - .formats = FSL_MICFIL_FORMATS, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .ops = &fsl_micfil_dai_ops, };

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 18/19] ASoC: fsl_micfil: drop support for undocumented property

The "fsl,shared-interrupt" property is undocumented and unnecessary. Just pass IRQF_SHARED unconditionally.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index f536ea2db89db..99c256f46f38e 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -553,7 +553,6 @@ static int fsl_micfil_probe(struct platform_device *pdev) struct resource *res; void __iomem *regs; int ret, i; - unsigned long irqflag = 0;

micfil = devm_kzalloc(&pdev->dev, sizeof(*micfil), GFP_KERNEL); if (!micfil) @@ -617,12 +616,9 @@ static int fsl_micfil_probe(struct platform_device *pdev) return micfil->irq[i]; }

- if (of_property_read_bool(np, "fsl,shared-interrupt")) - irqflag = IRQF_SHARED; - /* Digital Microphone interface interrupt */ ret = devm_request_irq(&pdev->dev, micfil->irq[0], - micfil_isr, irqflag, + micfil_isr, IRQF_SHARED, micfil->name, micfil); if (ret) { dev_err(&pdev->dev, "failed to claim mic interface irq %u\n", @@ -632,7 +628,7 @@ static int fsl_micfil_probe(struct platform_device *pdev)

/* Digital Microphone interface error interrupt */ ret = devm_request_irq(&pdev->dev, micfil->irq[1], - micfil_err_isr, irqflag, + micfil_err_isr, IRQF_SHARED, micfil->name, micfil); if (ret) { dev_err(&pdev->dev, "failed to claim mic interface error irq %u\n",

-- 2.30.2

Sascha Hauer

1:27 p.m.

New subject: [PATCH v2 19/19] ASoC: fsl_micfil: fold fsl_set_clock_params() into its only user

fsl_set_clock_params() is used only once and easily be folded into its caller, do so.

Signed-off-by: Sascha Hauer s.hauer@pengutronix.de --- sound/soc/fsl/fsl_micfil.c | 41 ++++++++++++-------------------------- 1 file changed, 13 insertions(+), 28 deletions(-)

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 99c256f46f38e..26b3395020973 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -253,29 +253,6 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd, return 0; }

-static int fsl_set_clock_params(struct device *dev, unsigned int rate) -{ - struct fsl_micfil *micfil = dev_get_drvdata(dev); - int clk_div = 8; - int osr = MICFIL_OSR_DEFAULT; - int ret; - - ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); - if (ret) - return ret; - - ret = micfil_set_quality(micfil); - if (ret) - return ret; - - ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, - MICFIL_CTRL2_CLKDIV | MICFIL_CTRL2_CICOSR, - FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div) | - FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - osr)); - - return ret; -} - static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -283,7 +260,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); unsigned int channels = params_channels(params); unsigned int rate = params_rate(params); - struct device *dev = &micfil->pdev->dev; + int clk_div = 8; + int osr = MICFIL_OSR_DEFAULT; int ret;

/* 1. Disable the module */ @@ -298,11 +276,18 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, if (ret) return ret;

- ret = fsl_set_clock_params(dev, rate); - if (ret < 0) { - dev_err(dev, "Failed to set clock parameters [%d]\n", ret); + ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); + if (ret) return ret; - } + + ret = micfil_set_quality(micfil); + if (ret) + return ret; + + ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2, + MICFIL_CTRL2_CLKDIV | MICFIL_CTRL2_CICOSR, + FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div) | + FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - osr));

micfil->dma_params_rx.peripheral_config = &micfil->sdmacfg; micfil->dma_params_rx.peripheral_size = sizeof(micfil->sdmacfg);

-- 2.30.2

897

Age (days ago)

907

Last active (days ago)

List overview

Download

32 comments

4 participants

tags (0)

participants (4)

Fabio Estevam
Sascha Hauer
Shengjiu Wang
Vinod Koul