Add support function to get dma control and lpaif handle to avoid repeated code in platform driver
Signed-off-by: Srinivasa Rao Mandadapu quic_srivasam@quicinc.com Co-developed-by: Venkata Prasad Potturu quic_potturu@quicinc.com Signed-off-by: Venkata Prasad Potturu quic_potturu@quicinc.com Reviewed-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/lpass-platform.c | 113 +++++++++++++++++++++++----------------- 1 file changed, 66 insertions(+), 47 deletions(-)
diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index a44162c..5d77240 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -177,6 +177,49 @@ static int lpass_platform_pcmops_close(struct snd_soc_component *component, return 0; }
+static void __lpass_get_lpaif_handle(struct snd_pcm_substream *substream, + struct snd_soc_component *component, + struct lpaif_dmactl **dmactl, int *id, struct regmap **map) +{ + struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0); + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct snd_pcm_runtime *rt = substream->runtime; + struct lpass_pcm_data *pcm_data = rt->private_data; + struct lpass_variant *v = drvdata->variant; + int dir = substream->stream; + unsigned int dai_id = cpu_dai->driver->id; + struct lpaif_dmactl *l_dmactl = NULL; + struct regmap *l_map = NULL; + int l_id = 0; + + switch (dai_id) { + case MI2S_PRIMARY ... MI2S_QUINARY: + if (dir == SNDRV_PCM_STREAM_PLAYBACK) { + l_id = pcm_data->dma_ch; + l_dmactl = drvdata->rd_dmactl; + } else { + l_dmactl = drvdata->wr_dmactl; + l_id = pcm_data->dma_ch - v->wrdma_channel_start; + } + l_map = drvdata->lpaif_map; + break; + case LPASS_DP_RX: + l_id = pcm_data->dma_ch; + l_dmactl = drvdata->hdmi_rd_dmactl; + l_map = drvdata->hdmiif_map; + break; + default: + break; + } + if (dmactl) + *dmactl = l_dmactl; + if (id) + *id = l_id; + if (map) + *map = l_map; +} + static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component, struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) @@ -191,21 +234,15 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component, unsigned int channels = params_channels(params); unsigned int regval; struct lpaif_dmactl *dmactl; - int id, dir = substream->stream; + int id; int bitwidth; int ret, dma_port = pcm_data->i2s_port + v->dmactl_audif_start; unsigned int dai_id = cpu_dai->driver->id;
- if (dir == SNDRV_PCM_STREAM_PLAYBACK) { - id = pcm_data->dma_ch; - if (dai_id == LPASS_DP_RX) - dmactl = drvdata->hdmi_rd_dmactl; - else - dmactl = drvdata->rd_dmactl; - - } else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; + __lpass_get_lpaif_handle(substream, component, &dmactl, &id, NULL); + if (!dmactl) { + dev_err(soc_runtime->dev, "failed to get dmactl handle\n"); + return -EINVAL; }
bitwidth = snd_pcm_format_width(format); @@ -350,10 +387,11 @@ static int lpass_platform_pcmops_hw_free(struct snd_soc_component *component, struct regmap *map; unsigned int dai_id = cpu_dai->driver->id;
- if (dai_id == LPASS_DP_RX) - map = drvdata->hdmiif_map; - else - map = drvdata->lpaif_map; + __lpass_get_lpaif_handle(substream, component, NULL, NULL, &map); + if (!map) { + dev_err(soc_runtime->dev, "failed to get dmactl handle\n"); + return -EINVAL; + }
reg = LPAIF_DMACTL_REG(v, pcm_data->dma_ch, substream->stream, dai_id); ret = regmap_write(map, reg, 0); @@ -379,22 +417,12 @@ static int lpass_platform_pcmops_prepare(struct snd_soc_component *component, int ret, id, ch, dir = substream->stream; unsigned int dai_id = cpu_dai->driver->id;
- ch = pcm_data->dma_ch; - if (dir == SNDRV_PCM_STREAM_PLAYBACK) { - if (dai_id == LPASS_DP_RX) { - dmactl = drvdata->hdmi_rd_dmactl; - map = drvdata->hdmiif_map; - } else { - dmactl = drvdata->rd_dmactl; - map = drvdata->lpaif_map; - }
- id = pcm_data->dma_ch; - } else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; - map = drvdata->lpaif_map; + __lpass_get_lpaif_handle(substream, component, &dmactl, &id, &map); + if (!dmactl) { + dev_err(soc_runtime->dev, "failed to get dmactl handle\n"); + return -EINVAL; }
ret = regmap_write(map, LPAIF_DMABASE_REG(v, ch, dir, dai_id), @@ -444,25 +472,15 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, struct lpaif_dmactl *dmactl; struct regmap *map; int ret, ch, id; - int dir = substream->stream; unsigned int reg_irqclr = 0, val_irqclr = 0; unsigned int reg_irqen = 0, val_irqen = 0, val_mask = 0; unsigned int dai_id = cpu_dai->driver->id;
ch = pcm_data->dma_ch; - if (dir == SNDRV_PCM_STREAM_PLAYBACK) { - id = pcm_data->dma_ch; - if (dai_id == LPASS_DP_RX) { - dmactl = drvdata->hdmi_rd_dmactl; - map = drvdata->hdmiif_map; - } else { - dmactl = drvdata->rd_dmactl; - map = drvdata->lpaif_map; - } - } else { - dmactl = drvdata->wr_dmactl; - id = pcm_data->dma_ch - v->wrdma_channel_start; - map = drvdata->lpaif_map; + __lpass_get_lpaif_handle(substream, component, &dmactl, &id, &map); + if (!dmactl) { + dev_err(soc_runtime->dev, "failed to get dmactl handle\n"); + return -EINVAL; }
switch (cmd) { @@ -597,10 +615,11 @@ static snd_pcm_uframes_t lpass_platform_pcmops_pointer( struct regmap *map; unsigned int dai_id = cpu_dai->driver->id;
- if (dai_id == LPASS_DP_RX) - map = drvdata->hdmiif_map; - else - map = drvdata->lpaif_map; + __lpass_get_lpaif_handle(substream, component, NULL, NULL, &map); + if (!map) { + dev_err(soc_runtime->dev, "failed to get dmactl handle\n"); + return -EINVAL; + }
ch = pcm_data->dma_ch;