On 7/3/20 7:16 AM, Lukasz Majczak wrote:
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
Looks good Lukasz but you need to move the information on changes below the --- marker (~4 lines below).
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;
