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ASoC: qcom: lpass-cpu: Remove bit clock state check

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[ Upstream commit 6c28377b7114d04cf82eedffe9dcc8fa66ecec48 ]

No need of BCLK state maintenance from driver side as
clock_enable and clk_disable API's maintaing state counter.

One of the major issue was spotted when Headset jack inserted
while playback continues, due to same PCM device node opens twice
for playaback/capture and closes once for capture and playback continues.

It can resolve the errors in such scenarios.

Fixes: b1824968221c ("ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state")

Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210127151824.8929-1-srivasam@codeaurora.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Srinivasa Rao Mandadapu 2021-01-27 20:48:24 +05:30 committed by Greg Kroah-Hartman
parent 2bebc6dcd3
commit 2a387bbead
3 changed files with 8 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
sound/soc/qcom/lpass-cpu.c
View File

@ -286,16 +286,12 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
if (drvdata->bit_clk_state[id] == LPAIF_BIT_CLK_DISABLE) {
ret = clk_enable(drvdata->mi2s_bit_clk[id]);
if (ret) {
dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
clk_disable(drvdata->mi2s_osr_clk[id]);
return ret;
}
drvdata->bit_clk_state[id] = LPAIF_BIT_CLK_ENABLE;
ret = clk_enable(drvdata->mi2s_bit_clk[id]);
if (ret) {
dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret);
clk_disable(drvdata->mi2s_osr_clk[id]);
return ret;
}
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
@ -310,10 +306,9 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream,
if (ret)
dev_err(dai->dev, "error writing to i2sctl reg: %d\n",
ret);
if (drvdata->bit_clk_state[id] == LPAIF_BIT_CLK_ENABLE) {
clk_disable(drvdata->mi2s_bit_clk[dai->driver->id]);
drvdata->bit_clk_state[id] = LPAIF_BIT_CLK_DISABLE;
}
clk_disable(drvdata->mi2s_bit_clk[dai->driver->id]);
break;
}
@ -866,7 +861,6 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
}
drvdata->bit_clk_state[dai_id] = LPAIF_BIT_CLK_DISABLE;
}
/* Allocation for i2sctl regmap fields */

3
sound/soc/qcom/lpass-lpaif-reg.h
View File

@ -60,9 +60,6 @@
#define LPAIF_I2SCTL_BITWIDTH_24 1
#define LPAIF_I2SCTL_BITWIDTH_32 2
#define LPAIF_BIT_CLK_DISABLE 0
#define LPAIF_BIT_CLK_ENABLE 1
#define LPAIF_I2SCTL_RESET_STATE 0x003C0004
#define LPAIF_DMACTL_RESET_STATE 0x00200000

1
sound/soc/qcom/lpass.h
View File

@ -68,7 +68,6 @@ struct lpass_data {
unsigned int mi2s_playback_sd_mode[LPASS_MAX_MI2S_PORTS];
unsigned int mi2s_capture_sd_mode[LPASS_MAX_MI2S_PORTS];
int hdmi_port_enable;
int bit_clk_state[LPASS_MAX_MI2S_PORTS];
/* low-power audio interface (LPAIF) registers */
void __iomem *lpaif;