From: Srinivasa Rao Mandadapu srivasam@codeaurora.org
[ 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 --- sound/soc/qcom/lpass-cpu.c | 22 ++++++++-------------- sound/soc/qcom/lpass-lpaif-reg.h | 3 --- sound/soc/qcom/lpass.h | 1 - 3 files changed, 8 insertions(+), 18 deletions(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index 46bb24afeacf0..6815f32b67b40 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -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 */ diff --git a/sound/soc/qcom/lpass-lpaif-reg.h b/sound/soc/qcom/lpass-lpaif-reg.h index baf72f124ea9b..2eb03ad9b7c74 100644 --- a/sound/soc/qcom/lpass-lpaif-reg.h +++ b/sound/soc/qcom/lpass-lpaif-reg.h @@ -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
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 868c1c8dbd455..1d926dd5f5900 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -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;