From: Takashi Iwai Date: Mon, 17 Dec 2007 13:32:49 +0000 (+0100) Subject: [ALSA] hda-codec - Avoid overload of PCM volume on Cx5045 codec X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=48ecb7e879ea172a0b3fd432ad49a870d7be6a59;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git [ALSA] hda-codec - Avoid overload of PCM volume on Cx5045 codec The PCM volume of Cx5045 codec has overload that isn't useful but rather harmful. Add a hack to override the amp info to set the max level 0 dB. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 68f23b823e25..a6916da73c46 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -826,6 +826,17 @@ static int patch_cxt5045(struct hda_codec *codec) spec->init_verbs[0] = cxt5045_test_init_verbs; #endif } + + /* + * Fix max PCM level to 0 dB + * (originall it has 0x2b steps with 0dB offset 0x14) + */ + snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT, + (0x14 << AC_AMPCAP_OFFSET_SHIFT) | + (0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) | + (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) | + (1 << AC_AMPCAP_MUTE_SHIFT)); + return 0; }