From: Paul Mackerras Date: Tue, 31 Oct 2006 14:24:45 +0000 (+0100) Subject: [ALSA] Enable stereo line input for TAS codec X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=80b8d5d6bc0000c6e499260883cfc95e645f49d1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git [ALSA] Enable stereo line input for TAS codec Despite what the data sheet says in one place, to get stereo input from input A (line in), we have to clear the 'input B monaural' bit in the ACR. Signed-off-by: Paul Mackerras Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c b/sound/aoa/codecs/snd-aoa-codec-tas.c index 2ef55a17917c..9de8485ba3f5 100644 --- a/sound/aoa/codecs/snd-aoa-codec-tas.c +++ b/sound/aoa/codecs/snd-aoa-codec-tas.c @@ -514,9 +514,15 @@ static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol, mutex_lock(&tas->mtx); oldacr = tas->acr; - tas->acr &= ~TAS_ACR_INPUT_B; + /* + * Despite what the data sheet says in one place, the + * TAS_ACR_B_MONAUREAL bit forces mono output even when + * input A (line in) is selected. + */ + tas->acr &= ~(TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL); if (ucontrol->value.enumerated.item[0]) - tas->acr |= TAS_ACR_INPUT_B; + tas->acr |= TAS_ACR_INPUT_B | TAS_ACR_B_MONAUREAL | + TAS_ACR_B_MON_SEL_RIGHT; if (oldacr == tas->acr) { mutex_unlock(&tas->mtx); return 0; @@ -686,8 +692,7 @@ static int tas_reset_init(struct tas *tas) if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp)) goto outerr; - tas->acr |= TAS_ACR_ANALOG_PDOWN | TAS_ACR_B_MONAUREAL | - TAS_ACR_B_MON_SEL_RIGHT; + tas->acr |= TAS_ACR_ANALOG_PDOWN; if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr)) goto outerr;