[PATCH v1 00/14] ASoC: qcom: Add capture support.

[PATCH v1 00/14] ASoC: qcom: Add capture support.

[Srinivas Kandagatla]

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.

Most of these patches are acked by Kenneth.

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

Thanks,
srini

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  | 243 +++++++++++++++++++++++----------------
 sound/soc/qcom/lpass.h           |  10 +-
 7 files changed, 390 insertions(+), 177 deletions(-)

-- 
1.9.1

[PATCH v1 01/14] ASoC: qcom: use snd_dma_alloc/free* apis

[Srinivas Kandagatla]

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>
---
 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

[PATCH v1 02/14] ASoC: qcom: add wrdma register details to lpass_variant

[Srinivas Kandagatla]

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

[PATCH v1 03/14] ASoC: qcom: rename rdmactl_audif_start to dmactrl_audif_start

[Srinivas Kandagatla]

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>
---
 sound/soc/qcom/lpass-apq8016.c  | 2 +-
 sound/soc/qcom/lpass-platform.c | 2 +-
 sound/soc/qcom/lpass.h          | 2 +-
 3 files changed, 3 insertions(+), 3 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..1c3eb65 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, rdma_port = pcm_data->i2s_port + v->dmactl_audif_start;
 
 	bitwidth = snd_pcm_format_width(format);
 	if (bitwidth < 0) {
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

[PATCH v1 04/14] ASoC: qcom: pass direction to dma allocation

[Srinivas Kandagatla]

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 1c3eb65..2aaca47 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

[PATCH v1 05/14] ASoC: qcom: ipq806x: add error in dma allocation.

[Srinivas Kandagatla]

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>
---
 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

[PATCH v1 06/14] ASoC: qcom: rename rdma_ch_bit_map to dma_ch_bit_map

[Srinivas Kandagatla]

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>
---
 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

[PATCH v1 07/14] ASoC: qcom: ipq806x: add wrdma related register offsets

[Srinivas Kandagatla]

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

[PATCH v1 08/14] ASoC: qcom: apq8016: add wrdma support

[Srinivas Kandagatla]

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>
---
 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

[PATCH v1 09/14] ASoC: qcom: add mic related i2s control register defines

[Srinivas Kandagatla]

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

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.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

[PATCH v1 10/14] ASoC: qcom: add wrdma register definitions

[Srinivas Kandagatla]

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

[PATCH v1 11/14] ASoC: qcom: add generic bit masks for RDMA and WRDMA

[Srinivas Kandagatla]

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>
---
 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 2aaca47..26a046a 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, rdma_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(rdma_port) |
-			LPAIF_RDMACTL_FIFOWM_8;
+	regval = LPAIF_DMACTL_BURSTEN_INCR4 |
+			LPAIF_DMACTL_AUDINTF(rdma_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

[PATCH v1 12/14] ASoC: qcom: apq8016: set the correct max register for regmap

[Srinivas Kandagatla]

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

[PATCH v1 13/14] ASoC: qcom: add mic support

[Srinivas Kandagatla]

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 | 168 +++++++++++++++++++++++++++++-----------
 2 files changed, 204 insertions(+), 77 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 26a046a..574aa33 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;
 };
 
@@ -92,7 +93,13 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream,
 	unsigned int regval;
 	int dir = substream->stream;
 	int bitwidth;
-	int ret, rdma_port = pcm_data->i2s_port + v->dmactl_audif_start;
+	int ch, 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) {
@@ -102,7 +109,7 @@ static int lpass_platform_pcmops_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	regval = LPAIF_DMACTL_BURSTEN_INCR4 |
-			LPAIF_DMACTL_AUDINTF(rdma_port) |
+			LPAIF_DMACTL_AUDINTF(dma_port) |
 			LPAIF_DMACTL_FIFOWM_8;
 
 	switch (bitwidth) {
@@ -158,7 +165,7 @@ 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 +182,15 @@ 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 +206,15 @@ 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 +260,12 @@ 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 +337,12 @@ 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 +470,7 @@ 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 +483,106 @@ 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, pcm->card->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, pcm->card->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

[PATCH v1 14/14] ASoC: qcom: apq8016-sbc: add mic support

[Srinivas Kandagatla]

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

Re: [PATCH v1 00/14] ASoC: qcom: Add capture support.

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 472 bytes --]

On Wed, Feb 10, 2016 at 10:16:58AM +0000, Srinivas Kandagatla wrote:

> 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.

> Most of these patches are acked by Kenneth.

...when previously posted so this isn't version 1 of the series.  :/

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

Re: [PATCH v1 00/14] ASoC: qcom: Add capture support.

[Srinivas Kandagatla]

On 10/02/16 10:22, Mark Brown wrote:
> On Wed, Feb 10, 2016 at 10:16:58AM +0000, Srinivas Kandagatla wrote:
>
>> 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.
>
>> Most of these patches are acked by Kenneth.
>
> ...when previously posted so this isn't version 1 of the series.  :/
Yes you are correct, If we consider RFC as v1.

I can repost the series with change to version if that's Ok with you.

--srini

>

Re: [PATCH v1 00/14] ASoC: qcom: Add capture support.

[Mark Brown]

[-- Attachment #1.1: Type: text/plain, Size: 329 bytes --]

On Wed, Feb 10, 2016 at 10:39:41AM +0000, Srinivas Kandagatla wrote:

> I can repost the series with change to version if that's Ok with you.

No!  That's completely pointless.  But if you're going to include
versions please pay attention to them, people putting in obviously wrong
ones is usually a sign that there's a problem.

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

[-- Attachment #2: Type: text/plain, Size: 0 bytes --]

Re: [PATCH v1 00/14] ASoC: qcom: Add capture support.

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 329 bytes --]

On Wed, Feb 10, 2016 at 10:39:41AM +0000, Srinivas Kandagatla wrote:

> I can repost the series with change to version if that's Ok with you.

No!  That's completely pointless.  But if you're going to include
versions please pay attention to them, people putting in obviously wrong
ones is usually a sign that there's a problem.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 473 bytes --]

Re: [PATCH v1 00/14] ASoC: qcom: Add capture support.

[Kenneth Westfield]

On Wed, Feb 10, 2016 at 02:16:58AM -0800, Srinivas Kandagatla wrote:
> 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.
> 
> Most of these patches are acked by Kenneth.
> 
> These patches are tested on DB410C with Headset Mic, secondary mic.

With the exception of patch 13 (ASoC: qcom: add mic support), apply my
ack to all remaining patches:
Acked-by: Kenneth Westfield <kwestfie@codeaurora.org>

Once the comments in patch 13 are addressed, apply my ack to that as
well.

-- 
Kenneth Westfield
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, 
a Linux Foundation Collaborative Project

Re: [PATCH v1 13/14] ASoC: qcom: add mic support

[Kenneth Westfield]

On Wed, Feb 10, 2016 at 02:20:03AM -0800, Srinivas Kandagatla wrote:
> diff --git a/sound/soc/qcom/lpass-platform.c
> b/sound/soc/qcom/lpass-platform.c
> index 26a046a..574aa33 100644
> --- a/sound/soc/qcom/lpass-platform.c
> +++ b/sound/soc/qcom/lpass-platform.c

...

> @@ -92,7 +93,13 @@ static int lpass_platform_pcmops_hw_params(struct
> snd_pcm_substream *substream,
>  	unsigned int regval;
>  	int dir = substream->stream;
>  	int bitwidth;
> -	int ret, rdma_port = pcm_data->i2s_port + v->dmactl_audif_start;
> +	int ch, ret, dma_port = pcm_data->i2s_port +
> v->dmactl_audif_start;

IMO, changing rdma_port to dma_port should be in patch 3 (ASoC: qcom:
rename rdmactl_audif_start to dmactrl_audif_start).  However, as I
stated in my comments to your RFC submission, this is a nit.

...

> @@ -460,55 +483,106 @@ 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,
> pcm->card->dev,
> +					size, &psubstream->dma_buffer);

In patch 1 of this series (ASoC: qcom: use snd_dma_alloc/free* apis), you
correctly used the platform device for memory allocation.  However, that is
then replaced by the soundcard device here ...

> +	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,
> pcm->card->dev,
> +					size, &csubstream->dma_buffer);
> +		if (ret)
> +			goto capture_alloc_err;

... and here as well.

-- 
Kenneth Westfield
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, 
a Linux Foundation Collaborative Project

Re: [PATCH v1 13/14] ASoC: qcom: add mic support

[Srinivas Kandagatla]

On 10/02/16 20:10, Kenneth Westfield wrote:
> On Wed, Feb 10, 2016 at 02:20:03AM -0800, Srinivas Kandagatla wrote:
>> diff --git a/sound/soc/qcom/lpass-platform.c
>> b/sound/soc/qcom/lpass-platform.c
>> index 26a046a..574aa33 100644
>> --- a/sound/soc/qcom/lpass-platform.c
>> +++ b/sound/soc/qcom/lpass-platform.c
>
> ...
>
>> @@ -92,7 +93,13 @@ static int lpass_platform_pcmops_hw_params(struct
>> snd_pcm_substream *substream,
>>   	unsigned int regval;
>>   	int dir = substream->stream;
>>   	int bitwidth;
>> -	int ret, rdma_port = pcm_data->i2s_port + v->dmactl_audif_start;
>> +	int ch, ret, dma_port = pcm_data->i2s_port +
>> v->dmactl_audif_start;
>
> IMO, changing rdma_port to dma_port should be in patch 3 (ASoC: qcom:
> rename rdmactl_audif_start to dmactrl_audif_start).  However, as I
> stated in my comments to your RFC submission, this is a nit.
>
Am ok to change it.
But, Its just a local variable whose sense only changes once we get the 
mic support in.

> ...
>
>> @@ -460,55 +483,106 @@ 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,
>> pcm->card->dev,
>> +					size, &psubstream->dma_buffer);
>
> In patch 1 of this series (ASoC: qcom: use snd_dma_alloc/free* apis), you
> correctly used the platform device for memory allocation.  However, that is
> then replaced by the soundcard device here ...
>
Oops, I should have been careful.
Will fix it and send v2.



>> +	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,
>> pcm->card->dev,
>> +					size, &csubstream->dma_buffer);
>> +		if (ret)
>> +			goto capture_alloc_err;
>
> ... and here as well.
same.

Thanks,
srini
>

Applied "ASoC: qcom: apq8016: add wrdma support" to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: apq8016: add wrdma support

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 6a9364ca6fa07ec215b0ba7c49d110b8236985d4 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:19:30 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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,
-- 
2.7.0

Applied "ASoC: qcom: add mic related i2s control register defines" to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: add mic related i2s control register defines

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 39ad0ecd1e26a4138bf299b98265fceab60553a6 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:18:06 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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)
-- 
2.7.0

Applied "ASoC: qcom: ipq806x: add error in dma allocation." to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: ipq806x: add error in dma allocation.

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 0a536400ad2ea72c80e6257fa71aa78d17bd43e3 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:17:45 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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)
-- 
2.7.0

Applied "ASoC: qcom: pass direction to dma allocation" to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: pass direction to dma allocation

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 73c847b6d3670e4521cd3f603102332614d0b640 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:17:37 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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 */
-- 
2.7.0

Applied "ASoC: qcom: add wrdma register details to lpass_variant" to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: add wrdma register details to lpass_variant

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 ffc1325e1d3bb809dbd8c0b7f9682a22e51a69c3 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:17:23 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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);
-- 
2.7.0

Applied "ASoC: qcom: use snd_dma_alloc/free* apis" to the asoc tree

[Mark Brown]

The patch

   ASoC: qcom: use snd_dma_alloc/free* apis

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 144a98835d2b4fc8a732628eaa5c98c573d58baf Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Date: Thu, 11 Feb 2016 12:17:17 +0000
Subject: [PATCH] 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>
Signed-off-by: Mark Brown <broonie@kernel.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 = {
-- 
2.7.0