Add support to set backend params such as sampling rate and number of channels using backend params fixup callback. Also remove hardware params constraints setting.
Signed-off-by: Mohammad Rafi Shaik quic_mohs@quicinc.com Co-developed-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/sc7280.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-)
diff --git a/sound/soc/qcom/sc7280.c b/sound/soc/qcom/sc7280.c index da7469a6a267..aaa95fe63d83 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" @@ -24,6 +25,7 @@ #define DEFAULT_MCLK_RATE 19200000 #define RT5682_PLL_FREQ (48000 * 512) #define MI2S_BCLK_RATE 1536000 +#define DEFAULT_SAMPLE_RATE_48K 48000
struct sc7280_snd_data { struct snd_soc_card card; @@ -188,7 +190,6 @@ static int sc7280_init(struct snd_soc_pcm_runtime *rtd) static int sc7280_snd_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { - struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai; const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); @@ -196,8 +197,6 @@ 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);
switch (cpu_dai->id) { case LPASS_CDC_DMA_TX3: @@ -358,6 +357,20 @@ 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 = DEFAULT_SAMPLE_RATE_48K; + 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 +400,8 @@ 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);