From: Mohammad Rafi Shaik <quic_mohs@xxxxxxxxxxx> Add support to set backend params such as sampling rate and number of channels using backend params fixup callback. Also add no pcm check for hardware params constraints setting. Signed-off-by: Mohammad Rafi Shaik <quic_mohs@xxxxxxxxxxx> Co-developed-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx> --- sound/soc/qcom/sc7280.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/sound/soc/qcom/sc7280.c b/sound/soc/qcom/sc7280.c index da7469a6a267..787dd49e03f6 100644 --- a/sound/soc/qcom/sc7280.c +++ b/sound/soc/qcom/sc7280.c @@ -14,6 +14,7 @@ #include <sound/soc.h> #include <sound/rt5682s.h> #include <linux/soundwire/sdw.h> +#include <sound/pcm_params.h> #include "../codecs/rt5682.h" #include "../codecs/rt5682s.h" @@ -196,8 +197,10 @@ static int sc7280_snd_hw_params(struct snd_pcm_substream *substream, struct sdw_stream_runtime *sruntime; int i; - snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); - snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000); + if (!rtd->dai_link->no_pcm) { + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000); + } switch (cpu_dai->id) { case LPASS_CDC_DMA_TX3: @@ -358,6 +361,20 @@ static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = { SND_SOC_DAPM_MIC("Headset Mic", NULL), }; +static int sc7280_snd_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + + rate->min = rate->max = 48000; + channels->min = channels->max = 2; + snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); + + return 0; +} + static int sc7280_snd_platform_probe(struct platform_device *pdev) { struct snd_soc_card *card; @@ -387,6 +404,8 @@ static int sc7280_snd_platform_probe(struct platform_device *pdev) for_each_card_prelinks(card, i, link) { link->init = sc7280_init; link->ops = &sc7280_ops; + if (link->no_pcm == 1) + link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup; } return devm_snd_soc_register_card(dev, card); -- 2.21.0