I2SCTL and DMACTL registers has different bits alignment for newer
LPASS variants of SC7180 soc. Use REG_FIELD_ID() to define the
reg_fields in platform specific file and removed shifts and mask
macros for such registers from header file.
Signed-off-by: Rohit kumar <rohitkr@xxxxxxxxxxxxxx>
---
sound/soc/qcom/lpass-apq8016.c | 24 ++++++
sound/soc/qcom/lpass-cpu.c | 163 +++++++++++++++++++++++----------------
sound/soc/qcom/lpass-ipq806x.c | 24 ++++++
sound/soc/qcom/lpass-lpaif-reg.h | 157 +++++++++++++++++++------------------
sound/soc/qcom/lpass-platform.c | 151 +++++++++++++++++++++++++++---------
sound/soc/qcom/lpass.h | 53 +++++++++++++
6 files changed, 398 insertions(+), 174 deletions(-)
diff --git a/sound/soc/qcom/lpass-apq8016.c b/sound/soc/qcom/lpass-apq8016.c
index fe4c258..dd9e3dd 100644
--- a/sound/soc/qcom/lpass-apq8016.c
+++ b/sound/soc/qcom/lpass-apq8016.c
@@ -240,6 +240,30 @@ static struct lpass_variant apq8016_data = {
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 2,
+ .loopback = REG_FIELD_ID(0x1000, 15, 15, 4, 0x1000),
+ .spken = REG_FIELD_ID(0x1000, 14, 14, 4, 0x1000),
+ .spkmode = REG_FIELD_ID(0x1000, 10, 13, 4, 0x1000),
+ .spkmono = REG_FIELD_ID(0x1000, 9, 9, 4, 0x1000),
+ .micen = REG_FIELD_ID(0x1000, 8, 8, 4, 0x1000),
+ .micmode = REG_FIELD_ID(0x1000, 4, 7, 4, 0x1000),
+ .micmono = REG_FIELD_ID(0x1000, 3, 3, 4, 0x1000),
+ .wssrc = REG_FIELD_ID(0x1000, 2, 2, 4, 0x1000),
+ .bitwidth = REG_FIELD_ID(0x1000, 0, 0, 4, 0x1000),
+
+ .rdma_dyncclk = REG_FIELD_ID(0x8400, 12, 12, 2, 0x1000),
+ .rdma_bursten = REG_FIELD_ID(0x8400, 11, 11, 2, 0x1000),
+ .rdma_wpscnt = REG_FIELD_ID(0x8400, 8, 10, 2, 0x1000),
+ .rdma_intf = REG_FIELD_ID(0x8400, 4, 7, 2, 0x1000),
+ .rdma_fifowm = REG_FIELD_ID(0x8400, 1, 3, 2, 0x1000),
+ .rdma_enable = REG_FIELD_ID(0x8400, 0, 0, 2, 0x1000),
+
+ .wrdma_dyncclk = REG_FIELD_ID(0xB000, 12, 12, 2, 0x1000),
+ .wrdma_bursten = REG_FIELD_ID(0xB000, 11, 11, 2, 0x1000),
+ .wrdma_wpscnt = REG_FIELD_ID(0xB000, 8, 10, 2, 0x1000),
+ .wrdma_intf = REG_FIELD_ID(0xB000, 4, 7, 2, 0x1000),
+ .wrdma_fifowm = REG_FIELD_ID(0xB000, 1, 3, 2, 0x1000),
+ .wrdma_enable = REG_FIELD_ID(0xB000, 0, 0, 2, 0x1000),
+
.clk_name = (const char*[]) {
"pcnoc-mport-clk",
"pcnoc-sway-clk",
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index f0c7e93..f358d12 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -29,6 +29,32 @@
#define LPASS_CPU_I2S_SD0_1_2_MASK GENMASK(2, 0)
#define LPASS_CPU_I2S_SD0_1_2_3_MASK GENMASK(3, 0)
+static int lpass_cpu_init_i2sctl_bitfields(struct device *dev,
+ struct lpaif_i2sctl *i2sctl, struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+
+ i2sctl->loopback = devm_regmap_field_alloc(dev, map, v->loopback);
+ i2sctl->spken = devm_regmap_field_alloc(dev, map, v->spken);
+ i2sctl->spkmode = devm_regmap_field_alloc(dev, map, v->spkmode);
+ i2sctl->spkmono = devm_regmap_field_alloc(dev, map, v->spkmono);
+ i2sctl->micen = devm_regmap_field_alloc(dev, map, v->micen);
+ i2sctl->micmode = devm_regmap_field_alloc(dev, map, v->micmode);
+ i2sctl->micmono = devm_regmap_field_alloc(dev, map, v->micmono);
+ i2sctl->wssrc = devm_regmap_field_alloc(dev, map, v->wssrc);
+ i2sctl->bitwidth = devm_regmap_field_alloc(dev, map, v->bitwidth);
+
+ if (IS_ERR(i2sctl->loopback) || IS_ERR(i2sctl->spken) ||
+ IS_ERR(i2sctl->spkmode) || IS_ERR(i2sctl->spkmono) ||
+ IS_ERR(i2sctl->micen) || IS_ERR(i2sctl->micmode) ||
+ IS_ERR(i2sctl->micmono) || IS_ERR(i2sctl->wssrc) ||
+ IS_ERR(i2sctl->bitwidth))
+ return -EINVAL;
+
+ return 0;
+}
+
static int lpass_cpu_daiops_set_sysclk(struct snd_soc_dai *dai, int clk_id,
unsigned int freq, int dir)
{
@@ -79,12 +105,13 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+ unsigned int id = dai->driver->id;
snd_pcm_format_t format = params_format(params);
unsigned int channels = params_channels(params);
unsigned int rate = params_rate(params);
unsigned int mode;
- unsigned int regval;
- int bitwidth, ret;
+ int bitwidth, ret, regval;
bitwidth = snd_pcm_format_width(format);
if (bitwidth < 0) {
@@ -92,28 +119,45 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return bitwidth;
}
- regval = LPAIF_I2SCTL_LOOPBACK_DISABLE |
- LPAIF_I2SCTL_WSSRC_INTERNAL;
+ ret = regmap_fields_write(i2sctl->loopback, id,
+ LPAIF_I2SCTL_LOOPBACK_DISABLE);
+ if (ret) {
+ dev_err(dai->dev, "error updating loopback field: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_fields_write(i2sctl->wssrc, id,
+ LPAIF_I2SCTL_WSSRC_INTERNAL);
+ if (ret) {
+ dev_err(dai->dev, "error updating wssrc field: %d\n", ret);
+ return ret;
+ }
switch (bitwidth) {
case 16:
- regval |= LPAIF_I2SCTL_BITWIDTH_16;
+ regval = LPAIF_I2SCTL_BITWIDTH_16;
break;
case 24:
- regval |= LPAIF_I2SCTL_BITWIDTH_24;
+ regval = LPAIF_I2SCTL_BITWIDTH_24;
break;
case 32:
- regval |= LPAIF_I2SCTL_BITWIDTH_32;
+ regval = LPAIF_I2SCTL_BITWIDTH_32;
break;
default:
dev_err(dai->dev, "invalid bitwidth given: %d\n", bitwidth);
return -EINVAL;
}
+ ret = regmap_fields_write(i2sctl->bitwidth, id, regval);
+ if (ret) {
+ dev_err(dai->dev, "error updating bitwidth field: %d\n", ret);
+ return ret;
+ }
+
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- mode = drvdata->mi2s_playback_sd_mode[dai->driver->id];
+ mode = drvdata->mi2s_playback_sd_mode[id];
else
- mode = drvdata->mi2s_capture_sd_mode[dai->driver->id];
+ mode = drvdata->mi2s_capture_sd_mode[id];
if (!mode) {
dev_err(dai->dev, "no line is assigned\n");
@@ -175,30 +219,34 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- regval |= LPAIF_I2SCTL_SPKMODE(mode);
+ ret = regmap_fields_write(i2sctl->spkmode, id,
+ LPAIF_I2SCTL_SPKMODE(mode));
if (channels >= 2)
- regval |= LPAIF_I2SCTL_SPKMONO_STEREO;
+ ret = regmap_fields_write(i2sctl->spkmono, id,
+ LPAIF_I2SCTL_SPKMONO_STEREO);
else
- regval |= LPAIF_I2SCTL_SPKMONO_MONO;
+ ret = regmap_fields_write(i2sctl->spkmono, id,
+ LPAIF_I2SCTL_SPKMONO_MONO);
} else {
- regval |= LPAIF_I2SCTL_MICMODE(mode);
+ ret = regmap_fields_write(i2sctl->micmode, id,
+ LPAIF_I2SCTL_MICMODE(mode));
if (channels >= 2)
- regval |= LPAIF_I2SCTL_MICMONO_STEREO;
+ ret = regmap_fields_write(i2sctl->micmono, id,
+ LPAIF_I2SCTL_MICMONO_STEREO);
else
- regval |= LPAIF_I2SCTL_MICMONO_MONO;
+ ret = regmap_fields_write(i2sctl->micmono, id,
+ LPAIF_I2SCTL_MICMONO_MONO);
}
- ret = regmap_write(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
- regval);
if (ret) {
- dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
+ dev_err(dai->dev, "error writing to i2sctl channels mode: %d\n",
+ ret);
return ret;
}
- ret = clk_set_rate(drvdata->mi2s_bit_clk[dai->driver->id],
+ ret = clk_set_rate(drvdata->mi2s_bit_clk[id],
rate * bitwidth * 2);
if (ret) {
dev_err(dai->dev, "error setting mi2s bitclk to %u: %d\n",
@@ -209,41 +257,24 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream,
return 0;
}
-static int lpass_cpu_daiops_hw_free(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
- int ret;
-
- ret = regmap_write(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
- 0);
- if (ret)
- dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
-
- return ret;
-}
-
static int lpass_cpu_daiops_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+ unsigned int id = dai->driver->id;
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_fields_write(i2sctl->spken, id,
+ LPAIF_I2SCTL_SPKEN_ENABLE);
+ } else {
+ ret = regmap_fields_write(i2sctl->micen, id,
+ LPAIF_I2SCTL_MICEN_ENABLE);
}
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id),
- mask, val);
if (ret)
- dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret);
+ dev_err(dai->dev, "error writing to i2sctl enable: %d\n", ret);
return ret;
}
@@ -252,25 +283,21 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *dai)
{
struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+ struct lpaif_i2sctl *i2sctl = drvdata->i2sctl;
+ unsigned int id = dai->driver->id;
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;
+ ret = regmap_fields_write(i2sctl->spken, id,
+ LPAIF_I2SCTL_SPKEN_ENABLE);
} else {
- val = LPAIF_I2SCTL_MICEN_ENABLE;
- mask = LPAIF_I2SCTL_MICEN_MASK;
+ ret = regmap_fields_write(i2sctl->micen, id,
+ LPAIF_I2SCTL_MICEN_ENABLE);
}
-
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant,
- dai->driver->id),
- mask, val);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
@@ -279,17 +306,12 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
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;
+ ret = regmap_fields_write(i2sctl->spken, id,
+ LPAIF_I2SCTL_SPKEN_DISABLE);
} else {
- val = LPAIF_I2SCTL_MICEN_DISABLE;
- mask = LPAIF_I2SCTL_MICEN_MASK;
+ ret = regmap_fields_write(i2sctl->micen, id,
+ LPAIF_I2SCTL_MICEN_DISABLE);
}
-
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_I2SCTL_REG(drvdata->variant,
- dai->driver->id),
- mask, val);
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
@@ -304,7 +326,6 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
.startup = lpass_cpu_daiops_startup,
.shutdown = lpass_cpu_daiops_shutdown,
.hw_params = lpass_cpu_daiops_hw_params,
- .hw_free = lpass_cpu_daiops_hw_free,
.prepare = lpass_cpu_daiops_prepare,
.trigger = lpass_cpu_daiops_trigger,
};
@@ -599,6 +620,18 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
}
}
+ /* Allocation for i2sctl regmap fields */
+ drvdata->i2sctl = devm_kzalloc(&pdev->dev, sizeof(struct lpaif_i2sctl),
+ GFP_KERNEL);
+
+ /* Initialize bitfields for dai I2SCTL register */
+ ret = lpass_cpu_init_i2sctl_bitfields(dev, drvdata->i2sctl,
+ drvdata->lpaif_map);
+ if (ret) {
+ dev_err(dev, "error init i2sctl field: %d\n", ret);
+ return ret;
+ }
+
ret = devm_snd_soc_register_component(dev,
&lpass_cpu_comp_driver,
variant->dai_driver,
diff --git a/sound/soc/qcom/lpass-ipq806x.c b/sound/soc/qcom/lpass-ipq806x.c
index b7c0586..72f09b3 100644
--- a/sound/soc/qcom/lpass-ipq806x.c
+++ b/sound/soc/qcom/lpass-ipq806x.c
@@ -123,6 +123,30 @@ static struct lpass_variant ipq806x_data = {
.wrdma_reg_stride = 0x1000,
.wrdma_channel_start = 5,
.wrdma_channels = 4,
+ .loopback = REG_FIELD_ID(0x0010, 15, 15, 5, 0x4),
+ .spken = REG_FIELD_ID(0x0010, 14, 14, 5, 0x4),
+ .spkmode = REG_FIELD_ID(0x0010, 10, 13, 5, 0x4),
+ .spkmono = REG_FIELD_ID(0x0010, 9, 9, 5, 0x4),
+ .micen = REG_FIELD_ID(0x0010, 8, 8, 5, 0x4),
+ .micmode = REG_FIELD_ID(0x0010, 4, 7, 5, 0x4),
+ .micmono = REG_FIELD_ID(0x0010, 3, 3, 5, 0x4),
+ .wssrc = REG_FIELD_ID(0x0010, 2, 2, 5, 0x4),
+ .bitwidth = REG_FIELD_ID(0x0010, 0, 0, 5, 0x4),
+
+ .rdma_dyncclk = REG_FIELD_ID(0x6000, 12, 12, 4, 0x1000),
+ .rdma_bursten = REG_FIELD_ID(0x6000, 11, 11, 4, 0x1000),
+ .rdma_wpscnt = REG_FIELD_ID(0x6000, 8, 10, 4, 0x1000),
+ .rdma_intf = REG_FIELD_ID(0x6000, 4, 7, 4, 0x1000),
+ .rdma_fifowm = REG_FIELD_ID(0x6000, 1, 3, 4, 0x1000),
+ .rdma_enable = REG_FIELD_ID(0x6000, 0, 0, 4, 0x1000),
+
+ .wrdma_dyncclk = REG_FIELD_ID(0xB000, 12, 12, 4, 0x1000),
+ .wrdma_bursten = REG_FIELD_ID(0xB000, 11, 11, 4, 0x1000),
+ .wrdma_wpscnt = REG_FIELD_ID(0xB000, 8, 10, 4, 0x1000),
+ .wrdma_intf = REG_FIELD_ID(0xB000, 4, 7, 4, 0x1000),
+ .wrdma_fifowm = REG_FIELD_ID(0xB000, 1, 3, 4, 0x1000),
+ .wrdma_enable = REG_FIELD_ID(0xB000, 0, 0, 4, 0x1000),
+
.dai_driver = &ipq806x_lpass_cpu_dai_driver,
.num_dai = 1,
.dai_osr_clk_names = (const char *[]) {
diff --git a/sound/soc/qcom/lpass-lpaif-reg.h b/sound/soc/qcom/lpass-lpaif-reg.h
index 72a3e2f..5258e60 100644
--- a/sound/soc/qcom/lpass-lpaif-reg.h
+++ b/sound/soc/qcom/lpass-lpaif-reg.h
@@ -12,15 +12,12 @@
(v->i2sctrl_reg_base + (addr) + v->i2sctrl_reg_stride * (port))
#define LPAIF_I2SCTL_REG(v, port) LPAIF_I2SCTL_REG_ADDR(v, 0x0, (port))
-#define LPAIF_I2SCTL_LOOPBACK_MASK 0x8000
-#define LPAIF_I2SCTL_LOOPBACK_SHIFT 15
-#define LPAIF_I2SCTL_LOOPBACK_DISABLE (0 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
-#define LPAIF_I2SCTL_LOOPBACK_ENABLE (1 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
-#define LPAIF_I2SCTL_SPKEN_MASK 0x4000
-#define LPAIF_I2SCTL_SPKEN_SHIFT 14
-#define LPAIF_I2SCTL_SPKEN_DISABLE (0 << LPAIF_I2SCTL_SPKEN_SHIFT)
-#define LPAIF_I2SCTL_SPKEN_ENABLE (1 << LPAIF_I2SCTL_SPKEN_SHIFT)
+#define LPAIF_I2SCTL_LOOPBACK_DISABLE 0
+#define LPAIF_I2SCTL_LOOPBACK_ENABLE 1
+
+#define LPAIF_I2SCTL_SPKEN_DISABLE 0
+#define LPAIF_I2SCTL_SPKEN_ENABLE 1
#define LPAIF_I2SCTL_MODE_NONE 0
#define LPAIF_I2SCTL_MODE_SD0 1
@@ -31,40 +28,37 @@
#define LPAIF_I2SCTL_MODE_QUAD23 6
#define LPAIF_I2SCTL_MODE_6CH 7
#define LPAIF_I2SCTL_MODE_8CH 8
+#define LPAIF_I2SCTL_MODE_10CH 9
+#define LPAIF_I2SCTL_MODE_12CH 10
+#define LPAIF_I2SCTL_MODE_14CH 11
+#define LPAIF_I2SCTL_MODE_16CH 12
+#define LPAIF_I2SCTL_MODE_SD4 13
+#define LPAIF_I2SCTL_MODE_SD5 14
+#define LPAIF_I2SCTL_MODE_SD6 15
+#define LPAIF_I2SCTL_MODE_SD7 16
+#define LPAIF_I2SCTL_MODE_QUAD45 17
+#define LPAIF_I2SCTL_MODE_QUAD47 18
+#define LPAIF_I2SCTL_MODE_8CH_2 19
-#define LPAIF_I2SCTL_SPKMODE_MASK 0x3C00
-#define LPAIF_I2SCTL_SPKMODE_SHIFT 10
-#define LPAIF_I2SCTL_SPKMODE(mode) ((mode) << LPAIF_I2SCTL_SPKMODE_SHIFT)
+#define LPAIF_I2SCTL_SPKMODE(mode) mode
-#define LPAIF_I2SCTL_SPKMONO_MASK 0x0200
-#define LPAIF_I2SCTL_SPKMONO_SHIFT 9
-#define LPAIF_I2SCTL_SPKMONO_STEREO (0 << LPAIF_I2SCTL_SPKMONO_SHIFT)
-#define LPAIF_I2SCTL_SPKMONO_MONO (1 << LPAIF_I2SCTL_SPKMONO_SHIFT)
+#define LPAIF_I2SCTL_SPKMONO_STEREO 0
+#define LPAIF_I2SCTL_SPKMONO_MONO 1
-#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_MICEN_DISABLE 0
+#define LPAIF_I2SCTL_MICEN_ENABLE 1
-#define LPAIF_I2SCTL_MICMODE_MASK GENMASK(7, 4)
-#define LPAIF_I2SCTL_MICMODE_SHIFT 4
-#define LPAIF_I2SCTL_MICMODE(mode) ((mode) << LPAIF_I2SCTL_MICMODE_SHIFT)
+#define LPAIF_I2SCTL_MICMODE(mode) mode
-#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_MICMONO_STEREO 0
+#define LPAIF_I2SCTL_MICMONO_MONO 1
-#define LPAIF_I2SCTL_WSSRC_MASK 0x0004
-#define LPAIF_I2SCTL_WSSRC_SHIFT 2
-#define LPAIF_I2SCTL_WSSRC_INTERNAL (0 << LPAIF_I2SCTL_WSSRC_SHIFT)
-#define LPAIF_I2SCTL_WSSRC_EXTERNAL (1 << LPAIF_I2SCTL_WSSRC_SHIFT)
+#define LPAIF_I2SCTL_WSSRC_INTERNAL 0
+#define LPAIF_I2SCTL_WSSRC_EXTERNAL 1
-#define LPAIF_I2SCTL_BITWIDTH_MASK 0x0003
-#define LPAIF_I2SCTL_BITWIDTH_SHIFT 0
-#define LPAIF_I2SCTL_BITWIDTH_16 (0 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
-#define LPAIF_I2SCTL_BITWIDTH_24 (1 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
-#define LPAIF_I2SCTL_BITWIDTH_32 (2 << LPAIF_I2SCTL_BITWIDTH_SHIFT)
+#define LPAIF_I2SCTL_BITWIDTH_16 0
+#define LPAIF_I2SCTL_BITWIDTH_24 1
+#define LPAIF_I2SCTL_BITWIDTH_32 2
/* LPAIF IRQ */
#define LPAIF_IRQ_REG_ADDR(v, addr, port) \
@@ -121,42 +115,59 @@
#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)
+#define LPAIF_DMACTL_BURSTEN_SINGLE 0
+#define LPAIF_DMACTL_BURSTEN_INCR4 1
+
+#define LPAIF_DMACTL_WPSCNT_ONE 0
+#define LPAIF_DMACTL_WPSCNT_TWO 1
+#define LPAIF_DMACTL_WPSCNT_THREE 2
+#define LPAIF_DMACTL_WPSCNT_FOUR 3
+#define LPAIF_DMACTL_WPSCNT_SIX 5
+#define LPAIF_DMACTL_WPSCNT_EIGHT 7
+#define LPAIF_DMACTL_WPSCNT_TEN 9
+#define LPAIF_DMACTL_WPSCNT_TWELVE 11
+#define LPAIF_DMACTL_WPSCNT_FOURTEEN 13
+#define LPAIF_DMACTL_WPSCNT_SIXTEEN 15
+
+#define LPAIF_DMACTL_AUDINTF(id) id
+
+#define LPAIF_DMACTL_FIFOWM_1 0
+#define LPAIF_DMACTL_FIFOWM_2 1
+#define LPAIF_DMACTL_FIFOWM_3 2
+#define LPAIF_DMACTL_FIFOWM_4 3
+#define LPAIF_DMACTL_FIFOWM_5 4
+#define LPAIF_DMACTL_FIFOWM_6 5
+#define LPAIF_DMACTL_FIFOWM_7 6
+#define LPAIF_DMACTL_FIFOWM_8 7
+#define LPAIF_DMACTL_FIFOWM_9 8
+#define LPAIF_DMACTL_FIFOWM_10 9
+#define LPAIF_DMACTL_FIFOWM_11 10
+#define LPAIF_DMACTL_FIFOWM_12 11
+#define LPAIF_DMACTL_FIFOWM_13 12
+#define LPAIF_DMACTL_FIFOWM_14 13
+#define LPAIF_DMACTL_FIFOWM_15 14
+#define LPAIF_DMACTL_FIFOWM_16 15
+#define LPAIF_DMACTL_FIFOWM_17 16
+#define LPAIF_DMACTL_FIFOWM_18 17
+#define LPAIF_DMACTL_FIFOWM_19 18
+#define LPAIF_DMACTL_FIFOWM_20 19
+#define LPAIF_DMACTL_FIFOWM_21 20
+#define LPAIF_DMACTL_FIFOWM_22 21
+#define LPAIF_DMACTL_FIFOWM_23 22
+#define LPAIF_DMACTL_FIFOWM_24 23
+#define LPAIF_DMACTL_FIFOWM_25 24
+#define LPAIF_DMACTL_FIFOWM_26 25
+#define LPAIF_DMACTL_FIFOWM_27 26
+#define LPAIF_DMACTL_FIFOWM_28 27
+#define LPAIF_DMACTL_FIFOWM_29 28
+#define LPAIF_DMACTL_FIFOWM_30 29
+#define LPAIF_DMACTL_FIFOWM_31 30
+#define LPAIF_DMACTL_FIFOWM_32 31
+
+#define LPAIF_DMACTL_ENABLE_OFF 0
+#define LPAIF_DMACTL_ENABLE_ON 1
+
+#define LPAIF_DMACTL_DYNCLK_OFF 0
+#define LPAIF_DMACTL_DYNCLK_ON 1
+
#endif /* __LPASS_LPAIF_REG_H__ */
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c
index 34f7fd1..445ca193 100644
--- a/sound/soc/qcom/lpass-platform.c
+++ b/sound/soc/qcom/lpass-platform.c
@@ -50,6 +50,53 @@ static const struct snd_pcm_hardware lpass_platform_pcm_hardware = {
.fifo_size = 0,
};
+static int lpass_platform_alloc_dmactl_fields(struct device *dev,
+ struct regmap *map)
+{
+ struct lpass_data *drvdata = dev_get_drvdata(dev);
+ struct lpass_variant *v = drvdata->variant;
+ struct lpaif_dmactl *rd_dmactl, *wr_dmactl;
+
+ drvdata->rd_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
+ GFP_KERNEL);
+ if (drvdata->rd_dmactl == NULL)
+ return -ENOMEM;
+
+ drvdata->wr_dmactl = devm_kzalloc(dev, sizeof(struct lpaif_dmactl),
+ GFP_KERNEL);
+ if (drvdata->wr_dmactl == NULL)
+ return -ENOMEM;
+
+ rd_dmactl = drvdata->rd_dmactl;
+ wr_dmactl = drvdata->wr_dmactl;
+
+ rd_dmactl->bursten = devm_regmap_field_alloc(dev, map, v->rdma_bursten);
+ rd_dmactl->wpscnt = devm_regmap_field_alloc(dev, map, v->rdma_wpscnt);
+ rd_dmactl->fifowm = devm_regmap_field_alloc(dev, map, v->rdma_fifowm);
+ rd_dmactl->intf = devm_regmap_field_alloc(dev, map, v->rdma_intf);
+ rd_dmactl->enable = devm_regmap_field_alloc(dev, map, v->rdma_enable);
+ rd_dmactl->dyncclk = devm_regmap_field_alloc(dev, map, v->rdma_dyncclk);
+
+ if (IS_ERR(rd_dmactl->bursten) || IS_ERR(rd_dmactl->wpscnt) ||
+ IS_ERR(rd_dmactl->fifowm) || IS_ERR(rd_dmactl->intf) ||
+ IS_ERR(rd_dmactl->enable) || IS_ERR(rd_dmactl->dyncclk))
+ return -EINVAL;
+
+ wr_dmactl->bursten = devm_regmap_field_alloc(dev, map, v->wrdma_bursten);
+ wr_dmactl->wpscnt = devm_regmap_field_alloc(dev, map, v->wrdma_wpscnt);
+ wr_dmactl->fifowm = devm_regmap_field_alloc(dev, map, v->wrdma_fifowm);
+ wr_dmactl->intf = devm_regmap_field_alloc(dev, map, v->wrdma_intf);
+ wr_dmactl->enable = devm_regmap_field_alloc(dev, map, v->wrdma_enable);
+ wr_dmactl->dyncclk = devm_regmap_field_alloc(dev, map, v->wrdma_dyncclk);
+
+ if (IS_ERR(wr_dmactl->bursten) || IS_ERR(wr_dmactl->wpscnt) ||
+ IS_ERR(wr_dmactl->fifowm) || IS_ERR(wr_dmactl->intf) ||
+ IS_ERR(wr_dmactl->enable) || IS_ERR(wr_dmactl->dyncclk))
+ return -EINVAL;
+
+ return 0;
+}
+
static int lpass_platform_pcmops_open(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
@@ -59,9 +106,9 @@ static int lpass_platform_pcmops_open(struct snd_soc_component *component,
struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
struct lpass_variant *v = drvdata->variant;
int ret, dma_ch, dir = substream->stream;
- struct lpass_pcm_data *data;
+ struct lpass_pcm_data *data = NULL;
- data = devm_kzalloc(soc_runtime->dev, sizeof(*data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
@@ -111,13 +158,13 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component,
struct snd_pcm_runtime *runtime = substream->runtime;
struct lpass_data *drvdata = snd_soc_component_get_drvdata(component);
struct lpass_variant *v = drvdata->variant;
- struct lpass_pcm_data *data;
+ struct lpass_pcm_data *data = runtime->private_data;
- data = runtime->private_data;
drvdata->substream[data->dma_ch] = NULL;
if (v->free_dma_channel)
v->free_dma_channel(drvdata, data->dma_ch);
+ kfree(data);
return 0;
}
@@ -132,12 +179,19 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
struct lpass_variant *v = drvdata->variant;
snd_pcm_format_t format = params_format(params);
unsigned int channels = params_channels(params);
- unsigned int regval;
- int ch, dir = substream->stream;
- int bitwidth;
+ struct lpaif_dmactl *dmactl;
+ int dir = substream->stream;
+ int id, bitwidth;
int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start;
- ch = pcm_data->dma_ch;
+
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ dmactl = drvdata->rd_dmactl;
+ id = pcm_data->dma_ch;
+ } else {
+ dmactl = drvdata->wr_dmactl;
+ id = pcm_data->dma_ch - v->wrdma_channel_start;
+ }
bitwidth = snd_pcm_format_width(format);
if (bitwidth < 0) {
@@ -146,25 +200,29 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
return bitwidth;
}
- regval = LPAIF_DMACTL_BURSTEN_INCR4 |
- LPAIF_DMACTL_AUDINTF(dma_port) |
- LPAIF_DMACTL_FIFOWM_8;
+ ret = regmap_fields_write(dmactl->bursten, id, LPAIF_DMACTL_BURSTEN_INCR4);
+ ret = regmap_fields_write(dmactl->fifowm, id, LPAIF_DMACTL_FIFOWM_8);
+ ret = regmap_fields_write(dmactl->intf, id, LPAIF_DMACTL_AUDINTF(dma_port));
switch (bitwidth) {
case 16:
switch (channels) {
case 1:
case 2:
- regval |= LPAIF_DMACTL_WPSCNT_ONE;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_ONE);
break;
case 4:
- regval |= LPAIF_DMACTL_WPSCNT_TWO;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_TWO);
break;
case 6:
- regval |= LPAIF_DMACTL_WPSCNT_THREE;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_THREE);
break;
case 8:
- regval |= LPAIF_DMACTL_WPSCNT_FOUR;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_FOUR);
break;
default:
dev_err(soc_runtime->dev,
@@ -177,19 +235,24 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
case 32:
switch (channels) {
case 1:
- regval |= LPAIF_DMACTL_WPSCNT_ONE;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_ONE);
break;
case 2:
- regval |= LPAIF_DMACTL_WPSCNT_TWO;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_TWO);
break;
case 4:
- regval |= LPAIF_DMACTL_WPSCNT_FOUR;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_FOUR);
break;
case 6:
- regval |= LPAIF_DMACTL_WPSCNT_SIX;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_SIX);
break;
case 8:
- regval |= LPAIF_DMACTL_WPSCNT_EIGHT;
+ ret = regmap_fields_write(dmactl->wpscnt, id,
+ LPAIF_DMACTL_WPSCNT_EIGHT);
break;
default:
dev_err(soc_runtime->dev,
@@ -204,10 +267,8 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component,
return -EINVAL;
}
- ret = regmap_write(drvdata->lpaif_map,
- LPAIF_DMACTL_REG(v, ch, dir), regval);
if (ret) {
- dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
+ dev_err(soc_runtime->dev, "error writing to dmactl reg: %d\n",
ret);
return ret;
}
@@ -244,9 +305,17 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
struct snd_pcm_runtime *rt = substream->runtime;
struct lpass_pcm_data *pcm_data = rt->private_data;
struct lpass_variant *v = drvdata->variant;
- int ret, ch, dir = substream->stream;
+ struct lpaif_dmactl *dmactl;
+ int ret, id, ch, dir = substream->stream;
ch = pcm_data->dma_ch;
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ dmactl = drvdata->rd_dmactl;
+ id = pcm_data->dma_ch;
+ } else {
+ dmactl = drvdata->wr_dmactl;
+ id = pcm_data->dma_ch - v->wrdma_channel_start;
+ }
ret = regmap_write(drvdata->lpaif_map,
LPAIF_DMABASE_REG(v, ch, dir),
@@ -275,9 +344,7 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component,
return ret;
}
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_DMACTL_REG(v, ch, dir),
- LPAIF_DMACTL_ENABLE_MASK, LPAIF_DMACTL_ENABLE_ON);
+ ret = regmap_fields_write(dmactl->enable, id, LPAIF_DMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev, "error writing to rdmactl reg: %d\n",
ret);
@@ -296,9 +363,18 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
struct snd_pcm_runtime *rt = substream->runtime;
struct lpass_pcm_data *pcm_data = rt->private_data;
struct lpass_variant *v = drvdata->variant;
- int ret, ch, dir = substream->stream;
+ struct lpaif_dmactl *dmactl;
+ int ret, ch, id;
+ int dir = substream->stream;
ch = pcm_data->dma_ch;
+ if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+ dmactl = drvdata->rd_dmactl;
+ id = pcm_data->dma_ch;
+ } else {
+ dmactl = drvdata->wr_dmactl;
+ id = pcm_data->dma_ch - v->wrdma_channel_start;
+ }
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@@ -324,10 +400,8 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
return ret;
}
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_DMACTL_REG(v, ch, dir),
- LPAIF_DMACTL_ENABLE_MASK,
- LPAIF_DMACTL_ENABLE_ON);
+ ret = regmap_fields_write(dmactl->enable, id,
+ LPAIF_DMACTL_ENABLE_ON);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg: %d\n", ret);
@@ -337,10 +411,8 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component,
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- ret = regmap_update_bits(drvdata->lpaif_map,
- LPAIF_DMACTL_REG(v, ch, dir),
- LPAIF_DMACTL_ENABLE_MASK,
- LPAIF_DMACTL_ENABLE_OFF);
+ ret = regmap_fields_write(dmactl->enable, id,
+ LPAIF_DMACTL_ENABLE_OFF);
if (ret) {
dev_err(soc_runtime->dev,
"error writing to rdmactl reg: %d\n", ret);
@@ -580,6 +652,13 @@ int asoc_qcom_lpass_platform_register(struct platform_device *pdev)
return ret;
}
+ ret = lpass_platform_alloc_dmactl_fields(&pdev->dev,
+ drvdata->lpaif_map);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "error initializing dmactl fields: %d\n", ret);
+ return ret;
+ }
return devm_snd_soc_register_component(&pdev->dev,
&lpass_component_driver, NULL, 0);
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index 450020e..4294ec2 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -17,6 +17,28 @@
#define LPASS_MAX_MI2S_PORTS (8)
#define LPASS_MAX_DMA_CHANNELS (8)
+struct lpaif_i2sctl {
+ struct regmap_field *loopback;
+ struct regmap_field *spken;
+ struct regmap_field *spkmode;
+ struct regmap_field *spkmono;
+ struct regmap_field *micen;
+ struct regmap_field *micmode;
+ struct regmap_field *micmono;
+ struct regmap_field *wssrc;
+ struct regmap_field *bitwidth;
+};
+
+
+struct lpaif_dmactl {
+ struct regmap_field *bursten;
+ struct regmap_field *wpscnt;
+ struct regmap_field *intf;
+ struct regmap_field *fifowm;
+ struct regmap_field *enable;
+ struct regmap_field *dyncclk;
+};
+
/* Both the CPU DAI and platform drivers will access this data */
struct lpass_data {
@@ -55,6 +77,10 @@ struct lpass_data {
struct clk_bulk_data *clks;
int num_clks;
+ /* Regmap fields of I2SCTL & DMACTL registers bitfields */
+ struct lpaif_i2sctl *i2sctl;
+ struct lpaif_dmactl *rd_dmactl;
+ struct lpaif_dmactl *wr_dmactl;
};
/* Vairant data per each SOC */
@@ -72,6 +98,33 @@ struct lpass_variant {
u32 wrdma_reg_stride;
u32 wrdma_channels;
+ /* I2SCTL Register fields */
+ struct reg_field loopback;
+ struct reg_field spken;
+ struct reg_field spkmode;
+ struct reg_field spkmono;
+ struct reg_field micen;
+ struct reg_field micmode;
+ struct reg_field micmono;
+ struct reg_field wssrc;
+ struct reg_field bitwidth;
+
+ /* RD_DMA Register fields */
+ struct reg_field rdma_bursten;
+ struct reg_field rdma_wpscnt;
+ struct reg_field rdma_intf;
+ struct reg_field rdma_fifowm;
+ struct reg_field rdma_enable;
+ struct reg_field rdma_dyncclk;
+
+ /* RD_DMA Register fields */
+ struct reg_field wrdma_bursten;
+ struct reg_field wrdma_wpscnt;
+ struct reg_field wrdma_intf;
+ struct reg_field wrdma_fifowm;
+ struct reg_field wrdma_enable;
+ struct reg_field wrdma_dyncclk;
+
/**
* on SOCs like APQ8016 the channel control bits start
* at different offset to ipq806x
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
