[alsa-devel] [PATCH v3 00/14] ASoC: qcom: Add capture support.

Srinivas Kandagatla

11 Feb 2016 11 Feb '16

1:16 p.m.

LPASS IP on QCOM SOC supports both Playback and capture via I2S, but this feature is missing in existing code. This patchset aims at adding capture support to lpass IP. First few patches in this series does cleanup the driver to make easy to add capture support.

All these patches are acked by Kenneth.

These patches are tested on DB410C with Headset Mic, secondary mic.

Thanks, srini

Changes since v1/v2: - Fixed patch version number. - renamed rdma_port to dma_port in patch 3, as suggested by Kenneth. - fixed correct device for snd_dma_alloc/free as suggested by Kenneth in patch 13.

Changes since RFC: - made patches bisectable, reported by 0day testing - merged two patches as suggested by Kenneth - used corect device for snd_dma alloc/free apis, spotted by Kenneth - renamed LPAIF_I2SCTL_MICMODE_QUAD02 to LPAIF_I2SCTL_MICMODE_QUAD23, spotted by Kenneth. - Fixed minor issues suggested by Kenneth.

Srinivas Kandagatla (14): ASoC: qcom: use snd_dma_alloc/free* apis ASoC: qcom: add wrdma register details to lpass_variant ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start ASoC: qcom: pass direction to dma allocation ASoC: qcom: ipq806x: add error in dma allocation. ASoC: qcom: rename rdma_ch_bit_map to dma_ch_bit_map ASoC: qcom: ipq806x: add wrdma related register offsets ASoC: qcom: apq8016: add wrdma support ASoC: qcom: add mic related i2s control register defines ASoC: qcom: add wrdma register definitions ASoC: qcom: add generic bit masks for RDMA and WRDMA ASoC: qcom: apq8016: set the correct max register for regmap ASoC: qcom: add mic support ASoC: qcom: apq8016-sbc: add mic support

sound/soc/qcom/apq8016_sbc.c | 10 +- sound/soc/qcom/lpass-apq8016.c | 31 +++-- sound/soc/qcom/lpass-cpu.c | 146 ++++++++++++++++++----- sound/soc/qcom/lpass-ipq806x.c | 11 +- sound/soc/qcom/lpass-lpaif-reg.h | 116 +++++++++++++------ sound/soc/qcom/lpass-platform.c | 244 +++++++++++++++++++++++---------------- sound/soc/qcom/lpass.h | 10 +- 7 files changed, 391 insertions(+), 177 deletions(-)

-- 1.9.1

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Srinivas Kandagatla

11 Feb 11 Feb

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 01/14] ASoC: qcom: use snd_dma_alloc/free* apis

There is no point in having local allocation functions when the driver can use snd_dma_alloc/free() apis. This patch replaces the local versions of the dma allocation apis with the snd_dma_alloc/free() apis.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-platform.c | 42 ++++++----------------------------------- 1 file changed, 6 insertions(+), 36 deletions(-)

diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index 4aeb8e1..ec2414d 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -439,39 +439,6 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data) return IRQ_HANDLED; }

-static int lpass_platform_alloc_buffer(struct snd_pcm_substream *substream, - struct snd_soc_pcm_runtime *rt) -{ - struct snd_dma_buffer *buf = &substream->dma_buffer; - size_t size = lpass_platform_pcm_hardware.buffer_bytes_max; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = rt->platform->dev; - buf->private_data = NULL; - buf->area = dma_alloc_coherent(rt->platform->dev, size, &buf->addr, - GFP_KERNEL); - if (!buf->area) { - dev_err(rt->platform->dev, "%s: Could not allocate DMA buffer\n", - __func__); - return -ENOMEM; - } - buf->bytes = size; - - return 0; -} - -static void lpass_platform_free_buffer(struct snd_pcm_substream *substream, - struct snd_soc_pcm_runtime *rt) -{ - struct snd_dma_buffer *buf = &substream->dma_buffer; - - if (buf->area) { - dma_free_coherent(rt->dev, buf->bytes, buf->area, - buf->addr); - } - buf->area = NULL; -} - static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) { struct snd_pcm *pcm = soc_runtime->pcm; @@ -483,6 +450,7 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) struct lpass_variant *v = drvdata->variant; int ret; struct lpass_pcm_data *data; + size_t size = lpass_platform_pcm_hardware.buffer_bytes_max;

data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL); if (!data) @@ -499,7 +467,9 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime)

snd_soc_pcm_set_drvdata(soc_runtime, data);

- ret = lpass_platform_alloc_buffer(substream, soc_runtime); + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + soc_runtime->platform->dev, + size, &substream->dma_buffer); if (ret) return ret;

@@ -514,7 +484,7 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) return 0;

err_buf: - lpass_platform_free_buffer(substream, soc_runtime); + snd_dma_free_pages(&substream->dma_buffer); return ret; }

@@ -533,7 +503,7 @@ static void lpass_platform_pcm_free(struct snd_pcm *pcm) if (v->free_dma_channel) v->free_dma_channel(drvdata, data->rdma_ch);

- lpass_platform_free_buffer(substream, soc_runtime); + snd_dma_free_pages(&substream->dma_buffer); }

static struct snd_soc_platform_driver lpass_platform_driver = {

-- 1.9.1

Srinivas Kandagatla

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 02/14] ASoC: qcom: add wrdma register details to lpass_variant

This patch adds wrdma related register offsets, wrdma channel start and shifts into lpass variant structure.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass.h | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 0b63e2e..024a771 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -71,12 +71,16 @@ struct lpass_variant { u32 rdma_reg_base; u32 rdma_reg_stride; u32 rdma_channels; + u32 wrdma_reg_base; + u32 wrdma_reg_stride; + u32 wrdma_channels;

/** * on SOCs like APQ8016 the channel control bits start * at different offset to ipq806x **/ u32 rdmactl_audif_start; + u32 wrdma_channel_start; /* SOC specific intialization like clocks */ int (*init)(struct platform_device *pdev); int (*exit)(struct platform_device *pdev);

-- 1.9.1

Srinivas Kandagatla

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 03/14] ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start

This patch renames rdmactl_audif_start to dmactrl_audif_start as this is common for both rdma and wrdma. Without this patch the name would be bit misleading to the readers.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-apq8016.c | 2 +- sound/soc/qcom/lpass-platform.c | 4 ++-- sound/soc/qcom/lpass.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index 94efc01..6cc7e72 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -212,7 +212,7 @@ static struct lpass_variant apq8016_data = { .rdma_reg_base = 0x8400, .rdma_reg_stride = 0x1000, .rdma_channels = 2, - .rdmactl_audif_start = 1, + .dmactl_audif_start = 1, .dai_driver = apq8016_lpass_cpu_dai_driver, .num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver), .init = apq8016_lpass_init, diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index ec2414d..7245c2e 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -91,7 +91,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, unsigned int channels = params_channels(params); unsigned int regval; int bitwidth; - int ret, rdma_port = pcm_data->i2s_port + v->rdmactl_audif_start; + int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;

bitwidth = snd_pcm_format_width(format); if (bitwidth < 0) { @@ -101,7 +101,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, }

regval = LPAIF_RDMACTL_BURSTEN_INCR4 | - LPAIF_RDMACTL_AUDINTF(rdma_port) | + LPAIF_RDMACTL_AUDINTF(dma_port) | LPAIF_RDMACTL_FIFOWM_8;

switch (bitwidth) { diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 024a771..412399a 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -79,7 +79,7 @@ struct lpass_variant { * on SOCs like APQ8016 the channel control bits start * at different offset to ipq806x **/ - u32 rdmactl_audif_start; + u32 dmactl_audif_start; u32 wrdma_channel_start; /* SOC specific intialization like clocks */ int (*init)(struct platform_device *pdev);

-- 1.9.1

Mark Brown

20 Feb 20 Feb

6:15 p.m.

New subject: [alsa-devel] Applied "ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start" to the asoc tree

The patch

ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

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.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

...

From ec5b82878c36f8c7c6d0d85eacd5185633e6c91b Mon Sep 17 00:00:00 2001

From: Srinivas Kandagatla srinivas.kandagatla@linaro.org Date: Thu, 11 Feb 2016 12:17:30 +0000 Subject: [PATCH] ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start

This patch renames rdmactl_audif_start to dmactrl_audif_start as this is common for both rdma and wrdma. Without this patch the name would be bit misleading to the readers.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/qcom/lpass-apq8016.c | 2 +- sound/soc/qcom/lpass-platform.c | 4 ++-- sound/soc/qcom/lpass.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-)

bitwidth = snd_pcm_format_width(format); if (bitwidth < 0) { @@ -101,7 +101,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, }

regval = LPAIF_RDMACTL_BURSTEN_INCR4 | - LPAIF_RDMACTL_AUDINTF(rdma_port) | + LPAIF_RDMACTL_AUDINTF(dma_port) | LPAIF_RDMACTL_FIFOWM_8;

-- 2.7.0

Srinivas Kandagatla

11 Feb 11 Feb

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 04/14] ASoC: qcom: pass direction to dma allocation

This patch updates the internal dma allocation callbacks to take the stream direction so that it can allocate channels suitable for that stream direction. Before the capture support this was not necessary.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-apq8016.c | 3 ++- sound/soc/qcom/lpass-ipq806x.c | 2 +- sound/soc/qcom/lpass-platform.c | 3 ++- sound/soc/qcom/lpass.h | 2 +- 4 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index 6cc7e72..99061f4 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -133,7 +133,8 @@ static struct snd_soc_dai_driver apq8016_lpass_cpu_dai_driver[] = { }, };

-static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata) +static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata, + int direction) { struct lpass_variant *v = drvdata->variant; int chan = find_first_zero_bit(&drvdata->rdma_ch_bit_map, diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c index 7a41679..119048c 100644 --- a/sound/soc/qcom/lpass-ipq806x.c +++ b/sound/soc/qcom/lpass-ipq806x.c @@ -63,7 +63,7 @@ static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = { .ops = &asoc_qcom_lpass_cpu_dai_ops, };

-static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata) +static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir) { return IPQ806X_LPAIF_RDMA_CHAN_MI2S; } diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index 7245c2e..69c5ad8 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -457,7 +457,8 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) return -ENOMEM;

if (v->alloc_dma_channel) - data->rdma_ch = v->alloc_dma_channel(drvdata); + data->rdma_ch = v->alloc_dma_channel(drvdata, + SNDRV_PCM_STREAM_PLAYBACK);

if (IS_ERR_VALUE(data->rdma_ch)) return data->rdma_ch; diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 412399a..8475b60 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -84,7 +84,7 @@ struct lpass_variant { /* SOC specific intialization like clocks */ int (*init)(struct platform_device *pdev); int (*exit)(struct platform_device *pdev); - int (*alloc_dma_channel)(struct lpass_data *data); + int (*alloc_dma_channel)(struct lpass_data *data, int direction); int (*free_dma_channel)(struct lpass_data *data, int ch);

/* SOC specific dais */

-- 1.9.1

Srinivas Kandagatla

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 05/14] ASoC: qcom: ipq806x: add error in dma allocation.

ipq806x is only ever tested for playback so return error in dma allocation if the stream direction is capture.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-ipq806x.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c index 119048c..29a3529 100644 --- a/sound/soc/qcom/lpass-ipq806x.c +++ b/sound/soc/qcom/lpass-ipq806x.c @@ -65,7 +65,10 @@ static struct snd_soc_dai_driver ipq806x_lpass_cpu_dai_driver = {

static int ipq806x_lpass_alloc_dma_channel(struct lpass_data *drvdata, int dir) { - return IPQ806X_LPAIF_RDMA_CHAN_MI2S; + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + return IPQ806X_LPAIF_RDMA_CHAN_MI2S; + else /* Capture currently not implemented */ + return -EINVAL; }

static int ipq806x_lpass_free_dma_channel(struct lpass_data *drvdata, int chan)

-- 1.9.1

Srinivas Kandagatla

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 06/14] ASoC: qcom: rename rdma_ch_bit_map to dma_ch_bit_map

rdma_ch_bit_map can be reused for wrdma channel allocations as wrdma channel numbering start after rdma channel numbers. With capture support referring rdma_ch_bit_map for wrdma channel allocation is confusing, so renaming rdma_ch_bit_map to dma_ch_bit_map makes sense.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-apq8016.c | 6 +++--- sound/soc/qcom/lpass.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index 99061f4..ca3bbd5 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -137,20 +137,20 @@ static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata, int direction) { struct lpass_variant *v = drvdata->variant; - int chan = find_first_zero_bit(&drvdata->rdma_ch_bit_map, + int chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, v->rdma_channels);

if (chan >= v->rdma_channels) return -EBUSY;

- set_bit(chan, &drvdata->rdma_ch_bit_map); + set_bit(chan, &drvdata->dma_ch_bit_map);

return chan; }

static int apq8016_lpass_free_dma_channel(struct lpass_data *drvdata, int chan) { - clear_bit(chan, &drvdata->rdma_ch_bit_map); + clear_bit(chan, &drvdata->dma_ch_bit_map);

return 0; } diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 8475b60..30714ad 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -50,7 +50,7 @@ struct lpass_data { struct lpass_variant *variant;

/* bit map to keep track of static channel allocations */ - unsigned long rdma_ch_bit_map; + unsigned long dma_ch_bit_map;

/* used it for handling interrupt per dma channel */ struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];

-- 1.9.1

Srinivas Kandagatla

1:17 p.m.

New subject: [alsa-devel] [PATCH v3 07/14] ASoC: qcom: ipq806x: add wrdma related register offsets

This patch adds wrdma related register offsets to the lpass variant data of ipq806x.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-ipq806x.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c index 29a3529..608c1a9 100644 --- a/sound/soc/qcom/lpass-ipq806x.c +++ b/sound/soc/qcom/lpass-ipq806x.c @@ -86,6 +86,10 @@ static struct lpass_variant ipq806x_data = { .rdma_reg_base = 0x6000, .rdma_reg_stride = 0x1000, .rdma_channels = 4, + .wrdma_reg_base = 0xB000, + .wrdma_reg_stride = 0x1000, + .wrdma_channel_start = 5, + .wrdma_channels = 4, .dai_driver = &ipq806x_lpass_cpu_dai_driver, .num_dai = 1, .alloc_dma_channel = ipq806x_lpass_alloc_dma_channel,

-- 1.9.1

Srinivas Kandagatla

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 09/14] ASoC: qcom: add mic related i2s control register defines

This patch adds mic related bitmasks and offsets in the i2c control register.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-lpaif-reg.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)

diff --git a/sound/soc/qcom/lpass-lpaif-reg.h b/sound/soc/qcom/lpass-lpaif-reg.h index 95e22f1..6599794 100644 --- a/sound/soc/qcom/lpass-lpaif-reg.h +++ b/sound/soc/qcom/lpass-lpaif-reg.h @@ -47,6 +47,28 @@ #define LPAIF_I2SCTL_SPKMONO_STEREO (0 << LPAIF_I2SCTL_SPKMONO_SHIFT) #define LPAIF_I2SCTL_SPKMONO_MONO (1 << LPAIF_I2SCTL_SPKMONO_SHIFT)

+#define LPAIF_I2SCTL_MICEN_MASK GENMASK(8, 8) +#define LPAIF_I2SCTL_MICEN_SHIFT 8 +#define LPAIF_I2SCTL_MICEN_DISABLE (0 << LPAIF_I2SCTL_MICEN_SHIFT) +#define LPAIF_I2SCTL_MICEN_ENABLE (1 << LPAIF_I2SCTL_MICEN_SHIFT) + +#define LPAIF_I2SCTL_MICMODE_MASK GENMASK(7, 4) +#define LPAIF_I2SCTL_MICMODE_SHIFT 4 +#define LPAIF_I2SCTL_MICMODE_NONE (0 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_SD0 (1 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_SD1 (2 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_SD2 (3 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_SD3 (4 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_QUAD01 (5 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_QUAD23 (6 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_6CH (7 << LPAIF_I2SCTL_MICMODE_SHIFT) +#define LPAIF_I2SCTL_MICMODE_8CH (8 << LPAIF_I2SCTL_MICMODE_SHIFT) + +#define LPAIF_I2SCTL_MIMONO_MASK GENMASK(3, 3) +#define LPAIF_I2SCTL_MICMONO_SHIFT 3 +#define LPAIF_I2SCTL_MICMONO_STEREO (0 << LPAIF_I2SCTL_MICMONO_SHIFT) +#define LPAIF_I2SCTL_MICMONO_MONO (1 << LPAIF_I2SCTL_MICMONO_SHIFT) + #define LPAIF_I2SCTL_WSSRC_MASK 0x0004 #define LPAIF_I2SCTL_WSSRC_SHIFT 2 #define LPAIF_I2SCTL_WSSRC_INTERNAL (0 << LPAIF_I2SCTL_WSSRC_SHIFT)

-- 1.9.1

Srinivas Kandagatla

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 10/14] ASoC: qcom: add wrdma register definitions

This patch adds wrdma registers into the lpaif-reg.h.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-lpaif-reg.h | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/sound/soc/qcom/lpass-lpaif-reg.h b/sound/soc/qcom/lpass-lpaif-reg.h index 6599794..760d219 100644 --- a/sound/soc/qcom/lpass-lpaif-reg.h +++ b/sound/soc/qcom/lpass-lpaif-reg.h @@ -145,4 +145,15 @@ #define LPAIF_RDMACTL_ENABLE_OFF (0 << LPAIF_RDMACTL_ENABLE_SHIFT) #define LPAIF_RDMACTL_ENABLE_ON (1 << LPAIF_RDMACTL_ENABLE_SHIFT)

+#define LPAIF_WRDMA_REG_ADDR(v, addr, chan) \ + (v->wrdma_reg_base + (addr) + \ + v->wrdma_reg_stride * (chan - v->wrdma_channel_start)) + +#define LPAIF_WRDMACTL_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x00, (chan)) +#define LPAIF_WRDMABASE_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x04, (chan)) +#define LPAIF_WRDMABUFF_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x08, (chan)) +#define LPAIF_WRDMACURR_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x0C, (chan)) +#define LPAIF_WRDMAPER_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x10, (chan)) +#define LPAIF_WRDMAPERCNT_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x14, (chan)) + #endif /* __LPASS_LPAIF_REG_H__ */

-- 1.9.1

Srinivas Kandagatla

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 11/14] ASoC: qcom: add generic bit masks for RDMA and WRDMA

This patch adds generic masks for accessing bits in rdma/wrdma registers. Doing this would simplify the driver and adding capture support would be much simpler. Also there is no point in having same bit masks for bits in both rdma and wrdma registers.

This patch also deletes the RDMA specific bit masks and makes the code use the generic bit masks.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-lpaif-reg.h | 83 ++++++++++++++++++++++++---------------- sound/soc/qcom/lpass-platform.c | 54 ++++++++++++++------------ 2 files changed, 79 insertions(+), 58 deletions(-)

diff --git a/sound/soc/qcom/lpass-lpaif-reg.h b/sound/soc/qcom/lpass-lpaif-reg.h index 760d219..2240bc6 100644 --- a/sound/soc/qcom/lpass-lpaif-reg.h +++ b/sound/soc/qcom/lpass-lpaif-reg.h @@ -112,39 +112,6 @@ #define LPAIF_RDMAPER_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x10, (chan)) #define LPAIF_RDMAPERCNT_REG(v, chan) LPAIF_RDMA_REG_ADDR(v, 0x14, (chan))

-#define LPAIF_RDMACTL_BURSTEN_MASK 0x800 -#define LPAIF_RDMACTL_BURSTEN_SHIFT 11 -#define LPAIF_RDMACTL_BURSTEN_SINGLE (0 << LPAIF_RDMACTL_BURSTEN_SHIFT) -#define LPAIF_RDMACTL_BURSTEN_INCR4 (1 << LPAIF_RDMACTL_BURSTEN_SHIFT) - -#define LPAIF_RDMACTL_WPSCNT_MASK 0x700 -#define LPAIF_RDMACTL_WPSCNT_SHIFT 8 -#define LPAIF_RDMACTL_WPSCNT_ONE (0 << LPAIF_RDMACTL_WPSCNT_SHIFT) -#define LPAIF_RDMACTL_WPSCNT_TWO (1 << LPAIF_RDMACTL_WPSCNT_SHIFT) -#define LPAIF_RDMACTL_WPSCNT_THREE (2 << LPAIF_RDMACTL_WPSCNT_SHIFT) -#define LPAIF_RDMACTL_WPSCNT_FOUR (3 << LPAIF_RDMACTL_WPSCNT_SHIFT) -#define LPAIF_RDMACTL_WPSCNT_SIX (5 << LPAIF_RDMACTL_WPSCNT_SHIFT) -#define LPAIF_RDMACTL_WPSCNT_EIGHT (7 << LPAIF_RDMACTL_WPSCNT_SHIFT) - -#define LPAIF_RDMACTL_AUDINTF_MASK 0x0F0 -#define LPAIF_RDMACTL_AUDINTF_SHIFT 4 - -#define LPAIF_RDMACTL_FIFOWM_MASK 0x00E -#define LPAIF_RDMACTL_FIFOWM_SHIFT 1 -#define LPAIF_RDMACTL_FIFOWM_1 (0 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_2 (1 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_3 (2 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_4 (3 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_5 (4 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_6 (5 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_7 (6 << LPAIF_RDMACTL_FIFOWM_SHIFT) -#define LPAIF_RDMACTL_FIFOWM_8 (7 << LPAIF_RDMACTL_FIFOWM_SHIFT) - -#define LPAIF_RDMACTL_ENABLE_MASK 0x1 -#define LPAIF_RDMACTL_ENABLE_SHIFT 0 -#define LPAIF_RDMACTL_ENABLE_OFF (0 << LPAIF_RDMACTL_ENABLE_SHIFT) -#define LPAIF_RDMACTL_ENABLE_ON (1 << LPAIF_RDMACTL_ENABLE_SHIFT) - #define LPAIF_WRDMA_REG_ADDR(v, addr, chan) \ (v->wrdma_reg_base + (addr) + \ v->wrdma_reg_stride * (chan - v->wrdma_channel_start)) @@ -156,4 +123,54 @@ #define LPAIF_WRDMAPER_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x10, (chan)) #define LPAIF_WRDMAPERCNT_REG(v, chan) LPAIF_WRDMA_REG_ADDR(v, 0x14, (chan))

+#define __LPAIF_DMA_REG(v, chan, dir, reg) \ + (dir == SNDRV_PCM_STREAM_PLAYBACK) ? \ + LPAIF_RDMA##reg##_REG(v, chan) : \ + LPAIF_WRDMA##reg##_REG(v, chan) + +#define LPAIF_DMACTL_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, CTL) +#define LPAIF_DMABASE_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, BASE) +#define LPAIF_DMABUFF_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, BUFF) +#define LPAIF_DMACURR_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, CURR) +#define LPAIF_DMAPER_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PER) +#define LPAIF_DMAPERCNT_REG(v, chan, dir) __LPAIF_DMA_REG(v, chan, dir, PERCNT) + +#define LPAIF_DMACTL_BURSTEN_MASK 0x800 +#define LPAIF_DMACTL_BURSTEN_SHIFT 11 +#define LPAIF_DMACTL_BURSTEN_SINGLE (0 << LPAIF_DMACTL_BURSTEN_SHIFT) +#define LPAIF_DMACTL_BURSTEN_INCR4 (1 << LPAIF_DMACTL_BURSTEN_SHIFT) + +#define LPAIF_DMACTL_WPSCNT_MASK 0x700 +#define LPAIF_DMACTL_WPSCNT_SHIFT 8 +#define LPAIF_DMACTL_WPSCNT_ONE (0 << LPAIF_DMACTL_WPSCNT_SHIFT) +#define LPAIF_DMACTL_WPSCNT_TWO (1 << LPAIF_DMACTL_WPSCNT_SHIFT) +#define LPAIF_DMACTL_WPSCNT_THREE (2 << LPAIF_DMACTL_WPSCNT_SHIFT) +#define LPAIF_DMACTL_WPSCNT_FOUR (3 << LPAIF_DMACTL_WPSCNT_SHIFT) +#define LPAIF_DMACTL_WPSCNT_SIX (5 << LPAIF_DMACTL_WPSCNT_SHIFT) +#define LPAIF_DMACTL_WPSCNT_EIGHT (7 << LPAIF_DMACTL_WPSCNT_SHIFT) + +#define LPAIF_DMACTL_AUDINTF_MASK 0x0F0 +#define LPAIF_DMACTL_AUDINTF_SHIFT 4 +#define LPAIF_DMACTL_AUDINTF(id) (id << LPAIF_DMACTL_AUDINTF_SHIFT) + +#define LPAIF_DMACTL_FIFOWM_MASK 0x00E +#define LPAIF_DMACTL_FIFOWM_SHIFT 1 +#define LPAIF_DMACTL_FIFOWM_1 (0 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_2 (1 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_3 (2 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_4 (3 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_5 (4 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_6 (5 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_7 (6 << LPAIF_DMACTL_FIFOWM_SHIFT) +#define LPAIF_DMACTL_FIFOWM_8 (7 << LPAIF_DMACTL_FIFOWM_SHIFT) + +#define LPAIF_DMACTL_ENABLE_MASK 0x1 +#define LPAIF_DMACTL_ENABLE_SHIFT 0 +#define LPAIF_DMACTL_ENABLE_OFF (0 << LPAIF_DMACTL_ENABLE_SHIFT) +#define LPAIF_DMACTL_ENABLE_ON (1 << LPAIF_DMACTL_ENABLE_SHIFT) + +#define LPAIF_DMACTL_DYNCLK_MASK BIT(12) +#define LPAIF_DMACTL_DYNCLK_SHIFT 12 +#define LPAIF_DMACTL_DYNCLK_OFF (0 << LPAIF_DMACTL_DYNCLK_SHIFT) +#define LPAIF_DMACTL_DYNCLK_ON (1 << LPAIF_DMACTL_DYNCLK_SHIFT) #endif /* __LPASS_LPAIF_REG_H__ */ diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index 69c5ad8..348e50b 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -90,6 +90,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, snd_pcm_format_t format = params_format(params); unsigned int channels = params_channels(params); unsigned int regval; + int dir = substream->stream; int bitwidth; int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;

@@ -100,25 +101,25 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, return bitwidth; }

- regval = LPAIF_RDMACTL_BURSTEN_INCR4 | - LPAIF_RDMACTL_AUDINTF(dma_port) | - LPAIF_RDMACTL_FIFOWM_8; + regval = LPAIF_DMACTL_BURSTEN_INCR4 | + LPAIF_DMACTL_AUDINTF(dma_port) | + LPAIF_DMACTL_FIFOWM_8;

switch (bitwidth) { case 16: switch (channels) { case 1: case 2: - regval |= LPAIF_RDMACTL_WPSCNT_ONE; + regval |= LPAIF_DMACTL_WPSCNT_ONE; break; case 4: - regval |= LPAIF_RDMACTL_WPSCNT_TWO; + regval |= LPAIF_DMACTL_WPSCNT_TWO; break; case 6: - regval |= LPAIF_RDMACTL_WPSCNT_THREE; + regval |= LPAIF_DMACTL_WPSCNT_THREE; break; case 8: - regval |= LPAIF_RDMACTL_WPSCNT_FOUR; + regval |= LPAIF_DMACTL_WPSCNT_FOUR; break; default: dev_err(soc_runtime->dev, "%s() invalid PCM config given: bw=%d, ch=%u\n", @@ -130,19 +131,19 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, case 32: switch (channels) { case 1: - regval |= LPAIF_RDMACTL_WPSCNT_ONE; + regval |= LPAIF_DMACTL_WPSCNT_ONE; break; case 2: - regval |= LPAIF_RDMACTL_WPSCNT_TWO; + regval |= LPAIF_DMACTL_WPSCNT_TWO; break; case 4: - regval |= LPAIF_RDMACTL_WPSCNT_FOUR; + regval |= LPAIF_DMACTL_WPSCNT_FOUR; break; case 6: - regval |= LPAIF_RDMACTL_WPSCNT_SIX; + regval |= LPAIF_DMACTL_WPSCNT_SIX; break; case 8: - regval |= LPAIF_RDMACTL_WPSCNT_EIGHT; + regval |= LPAIF_DMACTL_WPSCNT_EIGHT; break; default: dev_err(soc_runtime->dev, "%s() invalid PCM config given: bw=%d, ch=%u\n", @@ -157,7 +158,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, }

ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, pcm_data->rdma_ch), regval); + LPAIF_DMACTL_REG(v, pcm_data->rdma_ch, dir), regval); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -194,6 +195,7 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; int ret, ch = pcm_data->rdma_ch; + int dir = substream->stream;

ret = regmap_write(drvdata->lpaif_map, LPAIF_RDMABASE_REG(v, ch), @@ -205,7 +207,7 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) }

ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMABUFF_REG(v, ch), + LPAIF_DMABUFF_REG(v, ch, dir), (snd_pcm_lib_buffer_bytes(substream) >> 2) - 1); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmabuff reg: %d\n", @@ -214,7 +216,7 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) }

ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMAPER_REG(v, ch), + LPAIF_DMAPER_REG(v, ch, dir), (snd_pcm_lib_period_bytes(substream) >> 2) - 1); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmaper reg: %d\n", @@ -223,8 +225,8 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) }

ret = regmap_update_bits(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, ch), - LPAIF_RDMACTL_ENABLE_MASK, LPAIF_RDMACTL_ENABLE_ON); + LPAIF_DMACTL_REG(v, ch, dir), + LPAIF_DMACTL_ENABLE_MASK, LPAIF_DMACTL_ENABLE_ON); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -243,6 +245,7 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; int ret, ch = pcm_data->rdma_ch; + int dir = substream->stream;

switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -269,9 +272,9 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, }

ret = regmap_update_bits(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, ch), - LPAIF_RDMACTL_ENABLE_MASK, - LPAIF_RDMACTL_ENABLE_ON); + LPAIF_DMACTL_REG(v, ch, dir), + LPAIF_DMACTL_ENABLE_MASK, + LPAIF_DMACTL_ENABLE_ON); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -282,9 +285,9 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: ret = regmap_update_bits(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, ch), - LPAIF_RDMACTL_ENABLE_MASK, - LPAIF_RDMACTL_ENABLE_OFF); + LPAIF_DMACTL_REG(v, ch, dir), + LPAIF_DMACTL_ENABLE_MASK, + LPAIF_DMACTL_ENABLE_OFF); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -315,9 +318,10 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( struct lpass_variant *v = drvdata->variant; unsigned int base_addr, curr_addr; int ret, ch = pcm_data->rdma_ch; + int dir = substream->stream;

ret = regmap_read(drvdata->lpaif_map, - LPAIF_RDMABASE_REG(v, ch), &base_addr); + LPAIF_DMABASE_REG(v, ch, dir), &base_addr); if (ret) { dev_err(soc_runtime->dev, "%s() error reading from rdmabase reg: %d\n", __func__, ret); @@ -325,7 +329,7 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( }

ret = regmap_read(drvdata->lpaif_map, - LPAIF_RDMACURR_REG(v, ch), &curr_addr); + LPAIF_DMACURR_REG(v, ch, dir), &curr_addr); if (ret) { dev_err(soc_runtime->dev, "%s() error reading from rdmacurr reg: %d\n", __func__, ret);

-- 1.9.1

Mark Brown

20 Feb 20 Feb

6:14 p.m.

New subject: [alsa-devel] Applied "ASoC: qcom: add generic bit masks for RDMA and WRDMA" to the asoc tree

The patch

ASoC: qcom: add generic bit masks for RDMA and WRDMA

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

...

From ec9e0ec84476954f971feb5e0422b48cb25dde58 Mon Sep 17 00:00:00 2001

From: Srinivas Kandagatla srinivas.kandagatla@linaro.org Date: Thu, 11 Feb 2016 12:18:20 +0000 Subject: [PATCH] ASoC: qcom: add generic bit masks for RDMA and WRDMA

This patch also deletes the RDMA specific bit masks and makes the code use the generic bit masks.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/qcom/lpass-lpaif-reg.h | 83 ++++++++++++++++++++++++---------------- sound/soc/qcom/lpass-platform.c | 54 ++++++++++++++------------ 2 files changed, 79 insertions(+), 58 deletions(-)

@@ -100,25 +101,25 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, return bitwidth; }

ret = regmap_write(drvdata->lpaif_map, LPAIF_RDMABASE_REG(v, ch), @@ -205,7 +207,7 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) }

switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -269,9 +272,9 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, }

-- 2.7.0

Srinivas Kandagatla

11 Feb 11 Feb

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 12/14] ASoC: qcom: apq8016: set the correct max register for regmap

Now that we are ready to access wrdma registers, set the max register and other regmap related configs to use correct values.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-cpu.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 00b6c9d..82e16b2 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -294,6 +294,17 @@ static bool lpass_cpu_regmap_writeable(struct device *dev, unsigned int reg) return true; }

+ for (i = 0; i < v->wrdma_channels; ++i) { + if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start)) + return true; + } + return false; }

@@ -327,6 +338,19 @@ static bool lpass_cpu_regmap_readable(struct device *dev, unsigned int reg) return true; }

+ for (i = 0; i < v->wrdma_channels; ++i) { + if (reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMABASE_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMABUFF_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start)) + return true; + if (reg == LPAIF_WRDMAPER_REG(v, i + v->wrdma_channel_start)) + return true; + } + return false; }

@@ -344,6 +368,10 @@ static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg) if (reg == LPAIF_RDMACURR_REG(v, i)) return true;

+ for (i = 0; i < v->wrdma_channels; ++i) + if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start)) + return true; + return false; }

@@ -399,8 +427,9 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev) return PTR_ERR((void const __force *)drvdata->lpaif); }

- lpass_cpu_regmap_config.max_register = LPAIF_RDMAPER_REG(variant, - variant->rdma_channels); + lpass_cpu_regmap_config.max_register = LPAIF_WRDMAPER_REG(variant, + variant->wrdma_channels + + variant->wrdma_channel_start);

drvdata->lpaif_map = devm_regmap_init_mmio(&pdev->dev, drvdata->lpaif, &lpass_cpu_regmap_config);

-- 1.9.1

Srinivas Kandagatla

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 13/14] ASoC: qcom: add mic support

This patch adds mic support to the lpass driver, most of the driver is reused as it is, only the register level access is changed depending on te direction of the stream.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-cpu.c | 113 +++++++++++++++++++-------- sound/soc/qcom/lpass-platform.c | 167 +++++++++++++++++++++++++++++----------- 2 files changed, 204 insertions(+), 76 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 82e16b2..e1d18d4 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -120,31 +120,60 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }

- switch (channels) { - case 1: - regval |= LPAIF_I2SCTL_SPKMODE_SD0; - regval |= LPAIF_I2SCTL_SPKMONO_MONO; - break; - case 2: - regval |= LPAIF_I2SCTL_SPKMODE_SD0; - regval |= LPAIF_I2SCTL_SPKMONO_STEREO; - break; - case 4: - regval |= LPAIF_I2SCTL_SPKMODE_QUAD01; - regval |= LPAIF_I2SCTL_SPKMONO_STEREO; - break; - case 6: - regval |= LPAIF_I2SCTL_SPKMODE_6CH; - regval |= LPAIF_I2SCTL_SPKMONO_STEREO; - break; - case 8: - regval |= LPAIF_I2SCTL_SPKMODE_8CH; - regval |= LPAIF_I2SCTL_SPKMONO_STEREO; - break; - default: - dev_err(dai->dev, "%s() invalid channels given: %u\n", - __func__, channels); - return -EINVAL; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + switch (channels) { + case 1: + regval |= LPAIF_I2SCTL_SPKMODE_SD0; + regval |= LPAIF_I2SCTL_SPKMONO_MONO; + break; + case 2: + regval |= LPAIF_I2SCTL_SPKMODE_SD0; + regval |= LPAIF_I2SCTL_SPKMONO_STEREO; + break; + case 4: + regval |= LPAIF_I2SCTL_SPKMODE_QUAD01; + regval |= LPAIF_I2SCTL_SPKMONO_STEREO; + break; + case 6: + regval |= LPAIF_I2SCTL_SPKMODE_6CH; + regval |= LPAIF_I2SCTL_SPKMONO_STEREO; + break; + case 8: + regval |= LPAIF_I2SCTL_SPKMODE_8CH; + regval |= LPAIF_I2SCTL_SPKMONO_STEREO; + break; + default: + dev_err(dai->dev, "%s() invalid channels given: %u\n", + __func__, channels); + return -EINVAL; + } + } else { + switch (channels) { + case 1: + regval |= LPAIF_I2SCTL_MICMODE_SD0; + regval |= LPAIF_I2SCTL_MICMONO_MONO; + break; + case 2: + regval |= LPAIF_I2SCTL_MICMODE_SD0; + regval |= LPAIF_I2SCTL_MICMONO_STEREO; + break; + case 4: + regval |= LPAIF_I2SCTL_MICMODE_QUAD01; + regval |= LPAIF_I2SCTL_MICMONO_STEREO; + break; + case 6: + regval |= LPAIF_I2SCTL_MICMODE_6CH; + regval |= LPAIF_I2SCTL_MICMONO_STEREO; + break; + case 8: + regval |= LPAIF_I2SCTL_MICMODE_8CH; + regval |= LPAIF_I2SCTL_MICMONO_STEREO; + break; + default: + dev_err(dai->dev, "%s() invalid channels given: %u\n", + __func__, channels); + return -EINVAL; + } }

ret = regmap_write(drvdata->lpaif_map, @@ -188,10 +217,19 @@ static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream, { struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai); int ret; + unsigned int val, mask; + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val = LPAIF_I2SCTL_SPKEN_ENABLE; + mask = LPAIF_I2SCTL_SPKEN_MASK; + } else { + val = LPAIF_I2SCTL_MICEN_ENABLE; + mask = LPAIF_I2SCTL_MICEN_MASK; + }

ret = regmap_update_bits(drvdata->lpaif_map, LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), - LPAIF_I2SCTL_SPKEN_MASK, LPAIF_I2SCTL_SPKEN_ENABLE); + mask, val); if (ret) dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n", __func__, ret); @@ -204,16 +242,24 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream, { struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai); int ret = -EINVAL; + unsigned int val, mask;

switch (cmd) { case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val = LPAIF_I2SCTL_SPKEN_ENABLE; + mask = LPAIF_I2SCTL_SPKEN_MASK; + } else { + val = LPAIF_I2SCTL_MICEN_ENABLE; + mask = LPAIF_I2SCTL_MICEN_MASK; + } + ret = regmap_update_bits(drvdata->lpaif_map, LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), - LPAIF_I2SCTL_SPKEN_MASK, - LPAIF_I2SCTL_SPKEN_ENABLE); + mask, val); if (ret) dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n", __func__, ret); @@ -221,11 +267,18 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream, case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + val = LPAIF_I2SCTL_SPKEN_DISABLE; + mask = LPAIF_I2SCTL_SPKEN_MASK; + } else { + val = LPAIF_I2SCTL_MICEN_DISABLE; + mask = LPAIF_I2SCTL_MICEN_MASK; + } + ret = regmap_update_bits(drvdata->lpaif_map, LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), - LPAIF_I2SCTL_SPKEN_MASK, - LPAIF_I2SCTL_SPKEN_DISABLE); + mask, val); if (ret) dev_err(dai->dev, "%s() error writing to i2sctl reg: %d\n", __func__, ret); diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index 348e50b..6e86654 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -26,6 +26,7 @@

struct lpass_pcm_data { int rdma_ch; + int wrdma_ch; int i2s_port; };

@@ -90,10 +91,15 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, snd_pcm_format_t format = params_format(params); unsigned int channels = params_channels(params); unsigned int regval; - int dir = substream->stream; + int ch, dir = substream->stream; int bitwidth; int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;

+ if (dir == SNDRV_PCM_STREAM_PLAYBACK) + ch = pcm_data->rdma_ch; + else + ch = pcm_data->wrdma_ch; + bitwidth = snd_pcm_format_width(format); if (bitwidth < 0) { dev_err(soc_runtime->dev, "%s() invalid bit width given: %d\n", @@ -158,7 +164,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream, }

ret = regmap_write(drvdata->lpaif_map, - LPAIF_DMACTL_REG(v, pcm_data->rdma_ch, dir), regval); + LPAIF_DMACTL_REG(v, ch, dir), regval); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -175,10 +181,15 @@ static int lpass_platform_pcmops_hw_free(struct snd_pcm_substream *substream) struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; + unsigned int reg; int ret;

- ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMACTL_REG(v, pcm_data->rdma_ch), 0); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg = LPAIF_RDMACTL_REG(v, pcm_data->rdma_ch); + else + reg = LPAIF_WRDMACTL_REG(v, pcm_data->wrdma_ch); + + ret = regmap_write(drvdata->lpaif_map, reg, 0); if (ret) dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", __func__, ret); @@ -194,11 +205,15 @@ static int lpass_platform_pcmops_prepare(struct snd_pcm_substream *substream) struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; - int ret, ch = pcm_data->rdma_ch; - int dir = substream->stream; + int ret, ch, dir = substream->stream; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + ch = pcm_data->rdma_ch; + else + ch = pcm_data->wrdma_ch;

ret = regmap_write(drvdata->lpaif_map, - LPAIF_RDMABASE_REG(v, ch), + LPAIF_DMABASE_REG(v, ch, dir), runtime->dma_addr); if (ret) { dev_err(soc_runtime->dev, "%s() error writing to rdmabase reg: %d\n", @@ -244,8 +259,12 @@ static int lpass_platform_pcmops_trigger(struct snd_pcm_substream *substream, struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; - int ret, ch = pcm_data->rdma_ch; - int dir = substream->stream; + int ret, ch, dir = substream->stream; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + ch = pcm_data->rdma_ch; + else + ch = pcm_data->wrdma_ch;

switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -317,8 +336,12 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( snd_soc_platform_get_drvdata(soc_runtime->platform); struct lpass_variant *v = drvdata->variant; unsigned int base_addr, curr_addr; - int ret, ch = pcm_data->rdma_ch; - int dir = substream->stream; + int ret, ch, dir = substream->stream; + + if (dir == SNDRV_PCM_STREAM_PLAYBACK) + ch = pcm_data->rdma_ch; + else + ch = pcm_data->wrdma_ch;

ret = regmap_read(drvdata->lpaif_map, LPAIF_DMABASE_REG(v, ch, dir), &base_addr); @@ -446,8 +469,7 @@ static irqreturn_t lpass_platform_lpaif_irq(int irq, void *data) static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) { struct snd_pcm *pcm = soc_runtime->pcm; - struct snd_pcm_substream *substream = - pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + struct snd_pcm_substream *psubstream, *csubstream; struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai; struct lpass_data *drvdata = snd_soc_platform_get_drvdata(soc_runtime->platform); @@ -460,55 +482,108 @@ static int lpass_platform_pcm_new(struct snd_soc_pcm_runtime *soc_runtime) if (!data) return -ENOMEM;

- if (v->alloc_dma_channel) - data->rdma_ch = v->alloc_dma_channel(drvdata, - SNDRV_PCM_STREAM_PLAYBACK); + data->i2s_port = cpu_dai->driver->id; + snd_soc_pcm_set_drvdata(soc_runtime, data);

- if (IS_ERR_VALUE(data->rdma_ch)) - return data->rdma_ch; + psubstream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + if (psubstream) { + if (v->alloc_dma_channel) + data->rdma_ch = v->alloc_dma_channel(drvdata, + SNDRV_PCM_STREAM_PLAYBACK);

- drvdata->substream[data->rdma_ch] = substream; - data->i2s_port = cpu_dai->driver->id; + if (IS_ERR_VALUE(data->rdma_ch)) + return data->rdma_ch;

- snd_soc_pcm_set_drvdata(soc_runtime, data); + drvdata->substream[data->rdma_ch] = psubstream;

- ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, - soc_runtime->platform->dev, - size, &substream->dma_buffer); - if (ret) - return ret; + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + soc_runtime->platform->dev, + size, &psubstream->dma_buffer); + if (ret) + goto playback_alloc_err;

- ret = regmap_write(drvdata->lpaif_map, + ret = regmap_write(drvdata->lpaif_map, LPAIF_RDMACTL_REG(v, data->rdma_ch), 0); - if (ret) { - dev_err(soc_runtime->dev, "%s() error writing to rdmactl reg: %d\n", + if (ret) { + dev_err(soc_runtime->dev, + "%s() error writing to rdmactl reg: %d\n", __func__, ret); - goto err_buf; + goto capture_alloc_err; + } + } + + csubstream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; + if (csubstream) { + if (v->alloc_dma_channel) + data->wrdma_ch = v->alloc_dma_channel(drvdata, + SNDRV_PCM_STREAM_CAPTURE); + + if (IS_ERR_VALUE(data->wrdma_ch)) + goto capture_alloc_err; + + drvdata->substream[data->wrdma_ch] = csubstream; + + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, + soc_runtime->platform->dev, + size, &csubstream->dma_buffer); + if (ret) + goto capture_alloc_err; + + ret = regmap_write(drvdata->lpaif_map, + LPAIF_WRDMACTL_REG(v, data->wrdma_ch), 0); + if (ret) { + dev_err(soc_runtime->dev, + "%s() error writing to wrdmactl reg: %d\n", + __func__, ret); + goto capture_reg_err; + } }

return 0;

-err_buf: - snd_dma_free_pages(&substream->dma_buffer); +capture_reg_err: + if (csubstream) + snd_dma_free_pages(&csubstream->dma_buffer); + +capture_alloc_err: + if (psubstream) + snd_dma_free_pages(&psubstream->dma_buffer); + + playback_alloc_err: + dev_err(soc_runtime->dev, "Cannot allocate buffer(s)\n"); + return ret; }

static void lpass_platform_pcm_free(struct snd_pcm *pcm) { - struct snd_pcm_substream *substream = - pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; - struct snd_soc_pcm_runtime *soc_runtime = substream->private_data; - struct lpass_data *drvdata = - snd_soc_platform_get_drvdata(soc_runtime->platform); - struct lpass_pcm_data *data = snd_soc_pcm_get_drvdata(soc_runtime); - struct lpass_variant *v = drvdata->variant; - - drvdata->substream[data->rdma_ch] = NULL; - - if (v->free_dma_channel) - v->free_dma_channel(drvdata, data->rdma_ch); - - snd_dma_free_pages(&substream->dma_buffer); + struct snd_soc_pcm_runtime *rt; + struct lpass_data *drvdata; + struct lpass_pcm_data *data; + struct lpass_variant *v; + struct snd_pcm_substream *substream; + int ch, i; + + for (i = 0; i < ARRAY_SIZE(pcm->streams); i++) { + substream = pcm->streams[i].substream; + if (substream) { + rt = substream->private_data; + data = snd_soc_pcm_get_drvdata(rt); + drvdata = snd_soc_platform_get_drvdata(rt->platform); + + ch = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + ? data->rdma_ch + : data->wrdma_ch; + v = drvdata->variant; + drvdata->substream[ch] = NULL; + if (v->free_dma_channel) + v->free_dma_channel(drvdata, ch); + + snd_dma_free_pages(&substream->dma_buffer); + substream->dma_buffer.area = NULL; + substream->dma_buffer.addr = 0; + } + } }

static struct snd_soc_platform_driver lpass_platform_driver = {

-- 1.9.1

Mark Brown

20 Feb 20 Feb

6:14 p.m.

New subject: [alsa-devel] Applied "ASoC: qcom: add mic support" to the asoc tree

The patch

ASoC: qcom: add mic support

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks, Mark

...

From fb5d11524eda5561f6dd8cc03f9dc778027ce907 Mon Sep 17 00:00:00 2001

From: Srinivas Kandagatla srinivas.kandagatla@linaro.org Date: Thu, 11 Feb 2016 12:18:33 +0000 Subject: [PATCH] ASoC: qcom: add mic support

This patch adds mic support to the lpass driver, most of the driver is reused as it is, only the register level access is changed depending on te direction of the stream.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/qcom/lpass-cpu.c | 113 +++++++++++++++++++-------- sound/soc/qcom/lpass-platform.c | 167 +++++++++++++++++++++++++++++----------- 2 files changed, 204 insertions(+), 76 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 91774fc..3cde9fb 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -120,31 +120,60 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream, return -EINVAL; }

struct lpass_pcm_data { int rdma_ch; + int wrdma_ch; int i2s_port; };

- if (v->alloc_dma_channel) - data->rdma_ch = v->alloc_dma_channel(drvdata, - SNDRV_PCM_STREAM_PLAYBACK); + data->i2s_port = cpu_dai->driver->id; + snd_soc_pcm_set_drvdata(soc_runtime, data);

- drvdata->substream[data->rdma_ch] = substream; - data->i2s_port = cpu_dai->driver->id; + if (IS_ERR_VALUE(data->rdma_ch)) + return data->rdma_ch;

- snd_soc_pcm_set_drvdata(soc_runtime, data); + drvdata->substream[data->rdma_ch] = psubstream;

return 0;

static struct snd_soc_platform_driver lpass_platform_driver = {

-- 2.7.0

Srinivas Kandagatla

11 Feb 11 Feb

1:18 p.m.

New subject: [alsa-devel] [PATCH v3 14/14] ASoC: qcom: apq8016-sbc: add mic support

This patch add mic support on apq8016-sbc board aka db410c. Tested it with headset mic.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/apq8016_sbc.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c index 1efdf00..1289543 100644 --- a/sound/soc/qcom/apq8016_sbc.c +++ b/sound/soc/qcom/apq8016_sbc.c @@ -30,6 +30,7 @@ struct apq8016_sbc_data { struct snd_soc_dai_link dai_link[]; /* dynamically allocated */ };

+#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21) #define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17) #define MIC_CTRL_TLMM_SCLK_EN BIT(1) #define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16)) @@ -53,6 +54,12 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) MIC_CTRL_TLMM_SCLK_EN, pdata->mic_iomux); break; + case MI2S_TERTIARY: + writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL | + MIC_CTRL_TLMM_SCLK_EN, + pdata->mic_iomux); + + break;

default: dev_err(card->dev, "unsupported cpu dai configuration\n"); @@ -126,9 +133,6 @@ static struct apq8016_sbc_data *apq8016_sbc_parse_of(struct snd_soc_card *card) }

link->platform_of_node = link->cpu_of_node; - /* For now we only support playback */ - link->playback_only = true; - ret = of_property_read_string(np, "link-name", &link->name); if (ret) { dev_err(card->dev, "error getting codec dai_link name\n");

-- 1.9.1

Srinivas Kandagatla

1:19 p.m.

New subject: [alsa-devel] [PATCH v3 08/14] ASoC: qcom: apq8016: add wrdma support

This patch adds wrdma support in lpass-apq8016 by providing the register offsets and adding support in dma channel allocation callback.

Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Acked-by: Kenneth Westfield kwestfie@codeaurora.org --- sound/soc/qcom/lpass-apq8016.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c index ca3bbd5..3eef0c3 100644 --- a/sound/soc/qcom/lpass-apq8016.c +++ b/sound/soc/qcom/lpass-apq8016.c @@ -137,11 +137,23 @@ static int apq8016_lpass_alloc_dma_channel(struct lpass_data *drvdata, int direction) { struct lpass_variant *v = drvdata->variant; - int chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, + int chan = 0; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + chan = find_first_zero_bit(&drvdata->dma_ch_bit_map, v->rdma_channels);

- if (chan >= v->rdma_channels) - return -EBUSY; + if (chan >= v->rdma_channels) + return -EBUSY; + } else { + chan = find_next_zero_bit(&drvdata->dma_ch_bit_map, + v->wrdma_channel_start + + v->wrdma_channels, + v->wrdma_channel_start); + + if (chan >= v->wrdma_channel_start + v->wrdma_channels) + return -EBUSY; + }

set_bit(chan, &drvdata->dma_ch_bit_map);

@@ -214,6 +226,10 @@ static struct lpass_variant apq8016_data = { .rdma_reg_stride = 0x1000, .rdma_channels = 2, .dmactl_audif_start = 1, + .wrdma_reg_base = 0xB000, + .wrdma_reg_stride = 0x1000, + .wrdma_channel_start = 5, + .wrdma_channels = 2, .dai_driver = apq8016_lpass_cpu_dai_driver, .num_dai = ARRAY_SIZE(apq8016_lpass_cpu_dai_driver), .init = apq8016_lpass_init,

-- 1.9.1

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Mark Brown
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