From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B1D33D5C2A for ; Mon, 20 Jul 2026 09:47:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784540842; cv=none; b=E/akRDwKgDHNlMVFiYTbvI053UMIZSE7zdchdj6IT//C47EHWEHaC+ue4uYTTdhBTN7y2aqAi4/Rux3AdqIztmLfi3Eh1DMLqfGSsQ4G6QeFZyIs6ZeCG7p4J8Cwk1Ggm7EzzC0LXmhlV/vYEuRJZ5j05NsRMONohB2Zu477I1w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784540842; c=relaxed/simple; bh=qXwBxiQPSnqzk59DI7K09jzJ9Kius58+NMxio8QZDZ8=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=noOGc8whswUiLVaYeK2aFgXGDQiHNvql2Rg7IQVmlgcqk9VrYbc1C9ASuTY/G4gSqKyNW7xCdQVJ5Vn1yFmJPi3M1mmb72BxouteyVc0OMjlv6UeSAg9JJwnSwF9HNgXxWKQVMIVzYGO+rKSyGjBDB/HoNa6EKZeCY7fcb2b2gs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0etouWGE; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0etouWGE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B913B1F000E9; Mon, 20 Jul 2026 09:47:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784540839; bh=5bpotKoF2yD3gp+nivY4K1ppZZbAD7giC0i8l+pQHqI=; h=Subject:To:Cc:From:Date; b=0etouWGE+pJaGjuaX52On2vdA0o3g1/G3uEg5wkvrEsare93pcA2q2kGBX85Qy/oI dNPR7O8WQKx4YGVVadFYP2g4u+yQJQDZxL0J74LrbcKuAc8itY2q8isiL6WC6AMnQH 8Gg1R+gsHPCu+fW1oqE9E5cHw8aXr4opd4sFOeC8= Subject: FAILED: patch "[PATCH] ALSA: hda: conexant: Remove mic bias threshold override" failed to apply to 6.6-stable tree To: zhangheng@kylinos.cn,tiwai@suse.de Cc: From: Date: Mon, 20 Jul 2026 11:47:02 +0200 Message-ID: <2026072002-coping-spinning-bac5@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x f52524da7084c1a54683ae9fbc73e93fff19dd64 # git commit -s git send-email --to '' --in-reply-to '2026072002-coping-spinning-bac5@gregkh' --subject-prefix 'PATCH 6.6.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From f52524da7084c1a54683ae9fbc73e93fff19dd64 Mon Sep 17 00:00:00 2001 From: Zhang Heng Date: Mon, 13 Jul 2026 18:03:29 +0800 Subject: [PATCH] ALSA: hda: conexant: Remove mic bias threshold override Remove the mic bias current comparator threshold override (NID 0x1c, verb 0x320, value 0x010) from Conexant codec driver. This override was originally intended to support volume up/down controls on headsets with inline remote controls, but it causes microphone detection failures on some headsets with impedance less than 1k ohm. After consulting with the vendor's engineers, it was confirmed that this setting is board-specific and should be handled by BIOS/firmware rather than the generic codec driver, especially since inline remote support is not currently implemented. Fixes: 7aeb25908648 ("ALSA: hda/conexant: Fix headset auto detect fail in cx8070 and SN6140") Cc: stable@vger.kernel.org Signed-off-by: Zhang Heng Link: https://patch.msgid.link/20260713100329.306892-1-zhangheng@kylinos.cn Signed-off-by: Takashi Iwai diff --git a/sound/hda/codecs/conexant.c b/sound/hda/codecs/conexant.c index 3d92262763f6..40da2832ba66 100644 --- a/sound/hda/codecs/conexant.c +++ b/sound/hda/codecs/conexant.c @@ -162,9 +162,6 @@ static void cx_fixup_headset_recog(struct hda_codec *codec) { unsigned int mic_present; - /* fix some headset type recognize fail issue, such as EDIFIER headset */ - /* set micbias output current comparator threshold from 66% to 55%. */ - snd_hda_codec_write(codec, 0x1c, 0, 0x320, 0x010); /* set OFF voltage for DFET from -1.2V to -0.8V, set headset micbias register * value adjustment trim from 2.2K ohms to 2.0K ohms. */