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Sat, 14 Feb 2026 20:46:25 -0800 (PST) From: Ocean Zhou To: linux-sound@vger.kernel.org Cc: perex@perex.cz, tiwai@suse.com, linux-kernel@vger.kernel.org, Ocean Zhou Subject: [PATCH 1/1] ALSA: hda/conexant: set CX20632 int mic mux on FEVM FA880 PRO Date: Sun, 15 Feb 2026 12:46:15 +0800 Message-ID: <20260215044615.337813-2-zhouoceanhy@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260215044615.337813-1-zhouoceanhy@gmail.com> References: <20260215044615.337813-1-zhouoceanhy@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" On FEVM FA880 PRO (PCI SSID 2014:8004), CX20632 ADC node 0x14 comes up with connection index 1 (NID 0x1b), which leaves the built-in microphone muted. Manually selecting index 3 (NID 0x1e, internal top mic) restores capture, but the setting falls back to index 1 after suspend/resume. Add a dedicated fixup for this exact SSID and force NID 0x14 to AC_VERB_SET_CONNECT_SEL =3D 0x03 in HDA_FIXUP_ACT_INIT. ACT_INIT runs on both cold boot codec initialization and the codec re-initialization path used after resume, so the built-in mic route is restored in both cases. Tested on real hardware: - hda-verb /dev/snd/hwC1D0 0x14 GET_CONNECT_SEL 0 returns 0x3 after boot and after suspend/resume - /proc/asound/card1/codec#0 shows Node 0x14 connection star on 0x1e Signed-off-by: Ocean Zhou --- sound/hda/codecs/conexant.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/sound/hda/codecs/conexant.c b/sound/hda/codecs/conexant.c index 5623d8c0a0f7..1d68402f575c 100644 --- a/sound/hda/codecs/conexant.c +++ b/sound/hda/codecs/conexant.c @@ -299,6 +299,7 @@ enum { CXT_PINCFG_SWS_JS201D, CXT_PINCFG_TOP_SPEAKER, CXT_FIXUP_HP_A_U, + CXT_FIXUP_FEVM_FA880_PRO_INTMIC, }; =20 /* for hda_fixup_thinkpad_acpi() */ @@ -340,6 +341,16 @@ static void cxt5066_increase_mic_boost(struct hda_code= c *codec, (0 << AC_AMPCAP_MUTE_SHIFT)); } =20 +static void cxt_fixup_cx20632_intmic(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + if (action !=3D HDA_FIXUP_ACT_INIT) + return; + + /* Force ADC 0x14 to internal mic pin 0x1e (conn index 3). */ + snd_hda_codec_write(codec, 0x14, 0, AC_VERB_SET_CONNECT_SEL, 0x03); +} + static void cxt_update_headset_mode(struct hda_codec *codec) { /* The verbs used in this function were tested on a Conexant CX20751/2 co= dec. */ @@ -1024,6 +1035,10 @@ static const struct hda_fixup cxt_fixups[] =3D { .type =3D HDA_FIXUP_FUNC, .v.func =3D cxt_fixup_hp_a_u, }, + [CXT_FIXUP_FEVM_FA880_PRO_INTMIC] =3D { + .type =3D HDA_FIXUP_FUNC, + .v.func =3D cxt_fixup_cx20632_intmic, + }, }; =20 static const struct hda_quirk cxt5045_fixups[] =3D { @@ -1125,6 +1140,7 @@ static const struct hda_quirk cxt5066_fixups[] =3D { SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004), SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205), SND_PCI_QUIRK(0x1d05, 0x3012, "MECHREVO Wujie 15X Pro", CXT_FIXUP_HEADSET= _MIC), + SND_PCI_QUIRK(0x2014, 0x8004, "FEVM FA880 PRO", CXT_FIXUP_FEVM_FA880_PRO_= INTMIC), HDA_CODEC_QUIRK(0x2782, 0x12c3, "Sirius Gen1", CXT_PINCFG_TOP_SPEAKER), HDA_CODEC_QUIRK(0x2782, 0x12c5, "Sirius Gen2", CXT_PINCFG_TOP_SPEAKER), {} @@ -1149,6 +1165,7 @@ static const struct hda_model_fixup cxt5066_fixup_mod= els[] =3D { { .id =3D CXT_PINCFG_SWS_JS201D, .name =3D "sws-js201d" }, { .id =3D CXT_PINCFG_TOP_SPEAKER, .name =3D "sirius-top-speaker" }, { .id =3D CXT_FIXUP_HP_A_U, .name =3D "HP-U-support" }, + { .id =3D CXT_FIXUP_FEVM_FA880_PRO_INTMIC, .name =3D "fevm-fa880-pro-intm= ic" }, {} }; =20 --=20 2.53.0