[PATCH 0/3] ASoC: fsl_micfil: fix and improvement
Fix the usage of regmap_write_bits(). Move mclk clock enablement to late stage. Enable the micfil error interrupt.
Shengjiu Wang (3): ASoC: fsl_micfil: fix regmap_write_bits usage ASoC: fsl_micfil: Add mclk enable flag ASoC: fsl_micfil: Enable micfil error interrupt
sound/soc/fsl/fsl_micfil.c | 49 ++++++++++++++++++++++++++++++-------- 1 file changed, 39 insertions(+), 10 deletions(-)
The last parameter 1 means BIT(0), which should be the correct BIT(X).
Fixes: 47a70e6fc9a8 ("ASoC: Add MICFIL SoC Digital Audio Interface driver.") Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com --- sound/soc/fsl/fsl_micfil.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 193be098fa5e..c347cb3a4712 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -988,7 +988,7 @@ static irqreturn_t micfil_isr(int irq, void *devid) regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, MICFIL_STAT_CHXF(i), - 1); + MICFIL_STAT_CHXF(i)); }
for (i = 0; i < MICFIL_FIFO_NUM; i++) { @@ -1023,7 +1023,7 @@ static irqreturn_t micfil_err_isr(int irq, void *devid) 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, 1); + MICFIL_STAT_LOWFREQF, MICFIL_STAT_LOWFREQF); }
return IRQ_HANDLED;
On Fri, Sep 27, 2024 at 11:23 AM Shengjiu Wang shengjiu.wang@nxp.com wrote:
The last parameter 1 means BIT(0), which should be the correct BIT(X).
Fixes: 47a70e6fc9a8 ("ASoC: Add MICFIL SoC Digital Audio Interface driver.") Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com
Reviewed-by: Daniel Baluta daniel.baluta@nxp.com
Previously the mclk is enabled in probe() stage, which is not necessary. Move mclk enablement to hw_params() and mclk disablement to hw_free() will be more efficient. 'mclk_flag' is used for this case.
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com --- sound/soc/fsl/fsl_micfil.c | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-)
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index c347cb3a4712..6ecf46e9ac4c 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -58,6 +58,7 @@ struct fsl_micfil { int vad_detected; struct fsl_micfil_verid verid; struct fsl_micfil_param param; + bool mclk_flag; /* mclk enable flag */ };
struct fsl_micfil_soc_data { @@ -693,7 +694,6 @@ static int fsl_micfil_reparent_rootclk(struct fsl_micfil *micfil, unsigned int s clk = micfil->mclk;
/* Disable clock first, for it was enabled by pm_runtime */ - clk_disable_unprepare(clk); fsl_asoc_reparent_pll_clocks(dev, clk, micfil->pll8k_clk, micfil->pll11k_clk, ratio); ret = clk_prepare_enable(clk); @@ -730,6 +730,8 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, if (ret) return ret;
+ micfil->mclk_flag = true; + ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8); if (ret) return ret; @@ -764,6 +766,17 @@ static int fsl_micfil_hw_params(struct snd_pcm_substream *substream, return 0; }
+static int fsl_micfil_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai); + + clk_disable_unprepare(micfil->mclk); + micfil->mclk_flag = false; + + return 0; +} + static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai) { struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev); @@ -806,6 +819,7 @@ 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, + .hw_free = fsl_micfil_hw_free, };
static struct snd_soc_dai_driver fsl_micfil_dai = { @@ -1279,7 +1293,8 @@ static int fsl_micfil_runtime_suspend(struct device *dev)
regcache_cache_only(micfil->regmap, true);
- clk_disable_unprepare(micfil->mclk); + if (micfil->mclk_flag) + clk_disable_unprepare(micfil->mclk); clk_disable_unprepare(micfil->busclk);
return 0; @@ -1294,10 +1309,12 @@ static int fsl_micfil_runtime_resume(struct device *dev) if (ret < 0) return ret;
- ret = clk_prepare_enable(micfil->mclk); - if (ret < 0) { - clk_disable_unprepare(micfil->busclk); - return ret; + if (micfil->mclk_flag) { + ret = clk_prepare_enable(micfil->mclk); + if (ret < 0) { + clk_disable_unprepare(micfil->busclk); + return ret; + } }
regcache_cache_only(micfil->regmap, false);
Enable micfil error interrupt, in the error handler, FIFO state and OUT state need to be cleared.
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com --- sound/soc/fsl/fsl_micfil.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 6ecf46e9ac4c..0930d8c9b8d7 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -651,7 +651,7 @@ static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd,
/* Enable the module */ ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1, - MICFIL_CTRL1_PDMIEN); + MICFIL_CTRL1_PDMIEN | MICFIL_CTRL1_ERREN); if (ret) return ret;
@@ -667,7 +667,7 @@ 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); + MICFIL_CTRL1_PDMIEN | MICFIL_CTRL1_ERREN); if (ret) return ret;
@@ -940,6 +940,7 @@ static bool fsl_micfil_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { case REG_MICFIL_STAT: + case REG_MICFIL_FIFO_STAT: case REG_MICFIL_DATACH0: case REG_MICFIL_DATACH1: case REG_MICFIL_DATACH2: @@ -948,6 +949,7 @@ static bool fsl_micfil_volatile_reg(struct device *dev, unsigned int reg) case REG_MICFIL_DATACH5: case REG_MICFIL_DATACH6: case REG_MICFIL_DATACH7: + case REG_MICFIL_OUT_STAT: case REG_MICFIL_VERID: case REG_MICFIL_PARAM: case REG_MICFIL_VAD0_STAT: @@ -1024,6 +1026,8 @@ static irqreturn_t micfil_err_isr(int irq, void *devid) { struct fsl_micfil *micfil = (struct fsl_micfil *)devid; struct platform_device *pdev = micfil->pdev; + u32 fifo_stat_reg; + u32 out_stat_reg; u32 stat_reg;
regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg); @@ -1040,6 +1044,14 @@ static irqreturn_t micfil_err_isr(int irq, void *devid) MICFIL_STAT_LOWFREQF, MICFIL_STAT_LOWFREQF); }
+ regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg); + regmap_write_bits(micfil->regmap, REG_MICFIL_FIFO_STAT, + fifo_stat_reg, fifo_stat_reg); + + regmap_read(micfil->regmap, REG_MICFIL_OUT_STAT, &out_stat_reg); + regmap_write_bits(micfil->regmap, REG_MICFIL_OUT_STAT, + out_stat_reg, out_stat_reg); + return IRQ_HANDLED; }
On Fri, 27 Sep 2024 16:00:28 +0800, Shengjiu Wang wrote:
Fix the usage of regmap_write_bits(). Move mclk clock enablement to late stage. Enable the micfil error interrupt.
Shengjiu Wang (3): ASoC: fsl_micfil: fix regmap_write_bits usage ASoC: fsl_micfil: Add mclk enable flag ASoC: fsl_micfil: Enable micfil error interrupt
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/3] ASoC: fsl_micfil: fix regmap_write_bits usage commit: 06df673d20230afb0e383e39235a4fa8b9a62464 [2/3] ASoC: fsl_micfil: Add mclk enable flag commit: b47024dc624bcffb89d238f4a5b490363cea2a1e [3/3] ASoC: fsl_micfil: Enable micfil error interrupt commit: cc3ae21f360bfa375fc3539e24e7adb0e643a9d4
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
participants (3)
-
Daniel Baluta -
Mark Brown -
Shengjiu Wang