diff options
Diffstat (limited to 'sound/soc/qcom/lpass-cpu.c')
| -rw-r--r-- | sound/soc/qcom/lpass-cpu.c | 70 |
1 files changed, 38 insertions, 32 deletions
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index ba2aca301a9b..426235a217ec 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -80,6 +80,12 @@ static int lpass_cpu_daiops_startup(struct snd_pcm_substream *substream, dev_err(dai->dev, "error in enabling mi2s osr clk: %d\n", ret); return ret; } + ret = clk_prepare(drvdata->mi2s_bit_clk[dai->driver->id]); + if (ret) { + dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret); + clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]); + return ret; + } return 0; } @@ -88,9 +94,8 @@ static void lpass_cpu_daiops_shutdown(struct snd_pcm_substream *substream, { struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai); - clk_disable_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]); - clk_disable_unprepare(drvdata->mi2s_osr_clk[dai->driver->id]); + clk_unprepare(drvdata->mi2s_bit_clk[dai->driver->id]); } static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream, @@ -258,28 +263,6 @@ static int lpass_cpu_daiops_hw_params(struct snd_pcm_substream *substream, return 0; } -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; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - ret = regmap_fields_write(i2sctl->spken, id, - LPAIF_I2SCTL_SPKEN_ENABLE); - } else { - ret = regmap_fields_write(i2sctl->micen, id, - LPAIF_I2SCTL_MICEN_ENABLE); - } - - if (ret) - dev_err(dai->dev, "error writing to i2sctl enable: %d\n", ret); - - return ret; -} - static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) { @@ -287,6 +270,18 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream, struct lpaif_i2sctl *i2sctl = drvdata->i2sctl; unsigned int id = dai->driver->id; int ret = -EINVAL; + unsigned int val = 0; + + ret = regmap_read(drvdata->lpaif_map, + LPAIF_I2SCTL_REG(drvdata->variant, dai->driver->id), &val); + if (ret) { + dev_err(dai->dev, "error reading from i2sctl reg: %d\n", ret); + return ret; + } + if (val == LPAIF_I2SCTL_RESET_STATE) { + dev_err(dai->dev, "error in i2sctl register state\n"); + return -ENOTRECOVERABLE; + } switch (cmd) { case SNDRV_PCM_TRIGGER_START: @@ -303,11 +298,14 @@ static int lpass_cpu_daiops_trigger(struct snd_pcm_substream *substream, dev_err(dai->dev, "error writing to i2sctl reg: %d\n", ret); - ret = clk_prepare_enable(drvdata->mi2s_bit_clk[id]); - if (ret) { - dev_err(dai->dev, "error in enabling mi2s bit clk: %d\n", ret); - clk_disable_unprepare(drvdata->mi2s_osr_clk[id]); - return 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; } break; @@ -324,6 +322,10 @@ 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; + } break; } @@ -335,7 +337,6 @@ 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, - .prepare = lpass_cpu_daiops_prepare, .trigger = lpass_cpu_daiops_trigger, }; EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops); @@ -453,16 +454,20 @@ static bool lpass_cpu_regmap_volatile(struct device *dev, unsigned int reg) struct lpass_variant *v = drvdata->variant; int i; + for (i = 0; i < v->i2s_ports; ++i) + if (reg == LPAIF_I2SCTL_REG(v, i)) + return true; for (i = 0; i < v->irq_ports; ++i) if (reg == LPAIF_IRQSTAT_REG(v, i)) return true; for (i = 0; i < v->rdma_channels; ++i) - if (reg == LPAIF_RDMACURR_REG(v, i)) + if (reg == LPAIF_RDMACURR_REG(v, i) || reg == LPAIF_RDMACTL_REG(v, i)) return true; for (i = 0; i < v->wrdma_channels; ++i) - if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start)) + if (reg == LPAIF_WRDMACURR_REG(v, i + v->wrdma_channel_start) || + reg == LPAIF_WRDMACTL_REG(v, i + v->wrdma_channel_start)) return true; return false; @@ -855,6 +860,7 @@ 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 */ |