Fix kabylake_ssp_fixup function to distinguish codecs DAIs by names,
as current approach, leads to crash while trying to get snd_soc_dpcm with
container_of() macro in kabylake_ssp_fixup().
The crash call path looks as below:
soc_pcm_hw_params()
snd_soc_dai_hw_params(codec_dai, substream, &codec_params);
rtd->dai_link->be_hw_params_fixup(rtd, params)
kabylake_ssp_fixup()
In this case, codec_params is just a copy of an internal structure and is
not embedded into struct snd_soc_dpcm thus we cannot use
container_of() on it.
v1 -> v2:
- Extract dmic from SSP0 as every BE should have own fixup function.
v2 -> v3:
- Restore naming in the dapm route table to not confuse with other
drivers
- Fixed indentations
v3 -> v4:
- Updated code and commit description according to
solution proposed by Harsha
Signed-off-by: Lukasz Majczak <lma@xxxxxxxxxxxx>
Signed-off-by: Harsha Priya <harshapriya.n@xxxxxxxxx>
---
.../intel/boards/kbl_rt5663_rt5514_max98927.c | 28 ++++++++-----------
1 file changed, 12 insertions(+), 16 deletions(-)
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
index b34cf6cf11395..df454de40739a 100644
--- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
+++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c
@@ -333,36 +333,32 @@ static int kabylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
- struct snd_interval *chan = hw_param_interval(params,
+ 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);
- struct snd_soc_dpcm *dpcm = container_of(
- params, struct snd_soc_dpcm, hw_params);
- struct snd_soc_dai_link *fe_dai_link = dpcm->fe->dai_link;
- struct snd_soc_dai_link *be_dai_link = dpcm->be->dai_link;
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
/*
* The ADSP will convert the FE rate to 48k, stereo, 24 bit
*/
- if (!strcmp(fe_dai_link->name, "Kbl Audio Port") ||
- !strcmp(fe_dai_link->name, "Kbl Audio Headset Playback") ||
- !strcmp(fe_dai_link->name, "Kbl Audio Capture Port")) {
+
+ if (!strcmp(codec_dai->name, KBL_REALTEK_DMIC_CODEC_DAI)) {
+ if (params_channels(params) == 2 ||
+ DMIC_CH(dmic_constraints) == 2)
+ channels->min = channels->max = 2;
+ else
+ channels->min = channels->max = 4;
+ } else {
rate->min = rate->max = 48000;
- chan->min = chan->max = 2;
+ channels->min = channels->max = 2;
snd_mask_none(fmt);
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
- } else if (!strcmp(fe_dai_link->name, "Kbl Audio DMIC cap")) {
- if (params_channels(params) == 2 ||
- DMIC_CH(dmic_constraints) == 2)
- chan->min = chan->max = 2;
- else
- chan->min = chan->max = 4;
}
/*
* The speaker on the SSP0 supports S16_LE and not S24_LE.
* thus changing the mask here
*/
- if (!strcmp(be_dai_link->name, "SSP0-Codec"))
+ if (!strcmp(codec_dai->name, KBL_MAXIM_CODEC_DAI))
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
return 0;
--
2.25.1
