From mboxrd@z Thu Jan 1 00:00:00 1970 From: Logan Li Subject: [PATCH 4/30] ALSA: HDA VIA: Limit VT1702 AA-Path max volume Date: Sat, 10 Oct 2009 19:07:32 +0800 Message-ID: <4AD06AF4.4090704@viatech.com.cn> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from exchtp08.via.com.tw (exchtp08.via.com.tw [61.66.243.7]) by alsa0.perex.cz (Postfix) with ESMTP id 041A6103842 for ; Sat, 10 Oct 2009 13:07:29 +0200 (CEST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: tiwai@suse.de, HaraldWelte@viatech.com, LydiaWang@viatech.com.cn List-Id: alsa-devel@alsa-project.org From: Lydia Wang Subject: ALSA: HDA VIA: Limit VT1702 AA-Path max volume according to customer request, VT1702 AA-Path max volume (12 dB) is too high, so limit to 0 dB. Signed-off-by: Lydia Wang Signed-off-by: Logan Li --- sound/pci/hda/patch_via.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -3166,6 +3166,12 @@ err = vt1702_auto_create_hp_ctls(spec, spec->autocfg.hp_pins[0]); if (err < 0) return err; + /* limit AA path volume to 0 dB */ + snd_hda_override_amp_caps(codec, 0x1A, HDA_INPUT, + (0x17 << AC_AMPCAP_OFFSET_SHIFT) | + (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) | + (0x5 << AC_AMPCAP_STEP_SIZE_SHIFT) | + (1 << AC_AMPCAP_MUTE_SHIFT)); err = vt1702_auto_create_analog_input_ctls(spec, &spec->autocfg); if (err < 0) return err;