From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753184Ab3LRVMQ (ORCPT ); Wed, 18 Dec 2013 16:12:16 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:36006 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753155Ab3LRVMO (ORCPT ); Wed, 18 Dec 2013 16:12:14 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai Subject: [PATCH 3.10 05/78] ALSA: hda - Add static DAC/pin mapping for AD1986A codec Date: Wed, 18 Dec 2013 13:10:33 -0800 Message-Id: <20131218211112.056395873@linuxfoundation.org> X-Mailer: git-send-email 1.8.5.1.163.gd7aced9 In-Reply-To: <20131218211111.903835960@linuxfoundation.org> References: <20131218211111.903835960@linuxfoundation.org> User-Agent: quilt/0.61-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai commit 3690739b013504d33fe9348dd45f6b126aa370fb upstream. AD1986A codec is a pretty old codec and has really many hidden restrictions. One of such is that each DAC is dedicated to certain pin although there are possible connections. Currently, the generic parser tries to assign individual DACs as much as possible, and this lead to two bad situations: connections where the sound actually doesn't work, and connections conflicting other channels. We may fix this by trying to find the best connections more harder, but as of now, it's easier to give some hints for paired DAC/pin connections and honor them if available, since such a hint is needed only for specific codecs (right now only AD1986A, and there will be unlikely any others in future). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64971 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66621 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/hda_generic.c | 23 ++++++++++++++++++++++- sound/pci/hda/hda_generic.h | 3 +++ sound/pci/hda/patch_analog.c | 10 ++++++++++ 3 files changed, 35 insertions(+), 1 deletion(-) --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -468,6 +468,20 @@ static void invalidate_nid_path(struct h memset(path, 0, sizeof(*path)); } +/* return a DAC if paired to the given pin by codec driver */ +static hda_nid_t get_preferred_dac(struct hda_codec *codec, hda_nid_t pin) +{ + struct hda_gen_spec *spec = codec->spec; + const hda_nid_t *list = spec->preferred_dacs; + + if (!list) + return 0; + for (; *list; list += 2) + if (*list == pin) + return list[1]; + return 0; +} + /* look for an empty DAC slot */ static hda_nid_t look_for_dac(struct hda_codec *codec, hda_nid_t pin, bool is_digital) @@ -1134,7 +1148,14 @@ static int try_assign_dacs(struct hda_co continue; } - dacs[i] = look_for_dac(codec, pin, false); + dacs[i] = get_preferred_dac(codec, pin); + if (dacs[i]) { + if (is_dac_already_used(codec, dacs[i])) + badness += bad->shared_primary; + } + + if (!dacs[i]) + dacs[i] = look_for_dac(codec, pin, false); if (!dacs[i] && !i) { /* try to steal the DAC of surrounds for the front */ for (j = 1; j < num_outs; j++) { --- a/sound/pci/hda/hda_generic.h +++ b/sound/pci/hda/hda_generic.h @@ -241,6 +241,9 @@ struct hda_gen_spec { const struct badness_table *main_out_badness; const struct badness_table *extra_out_badness; + /* preferred pin/DAC pairs; an array of paired NIDs */ + const hda_nid_t *preferred_dacs; + /* loopback mixing mode */ bool aamix_mode; --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -1227,6 +1227,14 @@ static int ad1986a_parse_auto_config(str { int err; struct ad198x_spec *spec; + static hda_nid_t preferred_pairs[] = { + 0x1a, 0x03, + 0x1b, 0x03, + 0x1c, 0x04, + 0x1d, 0x05, + 0x1e, 0x03, + 0 + }; err = alloc_ad_spec(codec); if (err < 0) @@ -1247,6 +1255,8 @@ static int ad1986a_parse_auto_config(str * So, let's disable the shared stream. */ spec->gen.multiout.no_share_stream = 1; + /* give fixed DAC/pin pairs */ + spec->gen.preferred_dacs = preferred_pairs; snd_hda_pick_fixup(codec, NULL, ad1986a_fixup_tbl, ad1986a_fixups); snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);