| Message ID | 20210127063038.1399-1-srivasam@codeaurora.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | ASoC: qcom: lpass-cpu: Remove bit clock state check | expand |
On 27/01/2021 06:30, Srinivasa Rao Mandadapu wrote: > 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. > > Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.org> Thanks for the cleanup, yes clk core will take care of this by enable_count check! You should add Fixes: b1824968221c ("ASoC: qcom: Fix enabling BCLK and LRCLK in LPAIF invalid state") > --- > 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 ae8efbc89af2..a669202e0001 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]); Can you also remove this unnecessary disable here! -srini > + 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; > } > > @@ -861,7 +856,6 @@ 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 405542832e99..c8e1d75340b2 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 2d68af0da34d..83b2e08ade06 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; >
On 27/01/2021 10:54, Srinivasa Rao Mandadapu wrote: >> > Actually this is MI2S OSR clock disable on failure of bit clock enable. > > Do You think it's redundant? My Bad!! Just ignore my comment on removing this! --srini
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index ae8efbc89af2..a669202e0001 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; } @@ -861,7 +856,6 @@ 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 405542832e99..c8e1d75340b2 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 2d68af0da34d..83b2e08ade06 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;
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. Signed-off-by: Srinivasa Rao Mandadapu <srivasam@codeaurora.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(-)