Re: [PATCH v3 3/8] ASoC: qcom: lpass: Use regmap_field for i2sctl and dmactl registers
From: Srinivas Kandagatla
Date: Thu Jul 09 2020 - 05:27:01 EST
On 08/07/2020 06:08, Rohit kumar wrote:
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>
Thanks Rohit for doing this, this looks much better now!
I have few minor comments..
---
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(-)
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_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;
Why is this change?
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;
-}
Any particular reason why this function remove
-
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;
}
...
@@ -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-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 @@
...
#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_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);
Does this change belong in this patch?
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;
}
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)
...
/* 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;
Above two along with rddma members can be removed, these become
redundant after adding regmap field!
+ /* 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