Some Baytrail-CR devices rely on analog mics connected with differential pairs and not the single-ended default Add quirk and enable it for T00TAF
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/boards/bytcr_rt5640.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 421a53c..085e57f 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -41,6 +41,7 @@ enum { #define BYT_RT5640_MAP(quirk) ((quirk) & 0xff) #define BYT_RT5640_DMIC_EN BIT(16) #define BYT_RT5640_MONO_SPEAKER BIT(17) +#define BYT_RT5640_DIFF_MIC BIT(18) /* defaut is single-ended */
static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP | BYT_RT5640_DMIC_EN; @@ -148,7 +149,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"), }, .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP | - BYT_RT5640_MONO_SPEAKER + BYT_RT5640_MONO_SPEAKER | + BYT_RT5640_DIFF_MIC ), }, { @@ -223,6 +225,11 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) if (ret) return ret;
+ if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) { + snd_soc_update_bits(codec, RT5640_IN1_IN2, RT5640_IN_DF1, + RT5640_IN_DF1); + } + if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) { ret = rt5640_dmic_enable(codec, 0, 0); if (ret)