From nobody Mon Feb 9 06:19:28 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 74A3C1D90DF; Thu, 5 Feb 2026 00:26:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770251162; cv=none; b=Q6jwA7RS7S0/yAEyGigB0XHbppvDUFDwme3yIDaEq8f1fI5QGS/OodcL2e8L5kZtub6ZZyMnJqeJFd6bv7lzvIkiEzLwhJne/Fc5ZVvo1UlFu2lvIm+gCc6bNWQ3pEnJxSZhLoJhKtpdrpaRR/fhemRnticvHLzPbiRrUAYC+PI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770251162; c=relaxed/simple; bh=LFS4JZHl4UTp3KzrHuIqWCJKhlCNu8bS9Uy/XaYFofc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=L1Ew4uF8V5ZcU1cu9CFapvM2pJOyoUT4h4sCUISaNt9a0UM/zEY496h/Cq04yRaK5tB11FvCePW1dROro+FYZqfap9Iho+thbki56oZKvZoaveql948koz2YB+UBuqmmeKXpV/lmnEsDse9HOED0u2+C4/5MeiIjonLikO4pgjQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lyhdAhZv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lyhdAhZv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 853F1C16AAE; Thu, 5 Feb 2026 00:26:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770251162; bh=LFS4JZHl4UTp3KzrHuIqWCJKhlCNu8bS9Uy/XaYFofc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=lyhdAhZvyQlKaMRXyV9qJ5wggHHTpNdd0qYB4p/K9RaouqGcanr6RVtWaV37qQtY/ HLmRByf9b3cr0uE4dGVT1U1o0cJodAp0xnOibnVVAP9kGvyO/awMNxxkNItRuGfAqM ryDx7o6yICkmrDRt0jKEOmRvG+F/ME4I6ZHb5b0FY12ybAJuOm1cNxbDjxRGDG3/yw Z+4fg5tMzxGy3qlV6oarXNuBA3QLDYjooBQsO7QIMw3+WgslSV/88hfuLUgRbYVpNh mJWpgNcNmxGFYADbMNPShpJn0WACJcPK5L/NOfMXQcH+l5nwRpYpZWSqLOmx3qaqiY xJeskrQ503rJA== From: Mark Brown Date: Thu, 05 Feb 2026 00:25:37 +0000 Subject: [PATCH 1/2] ASoC: fsl_easrc: Fix event generation in fsl_easrc_iec958_put_bits() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260205-asoc-fsl-easrc-fix-events-v1-1-39d4c766918b@kernel.org> References: <20260205-asoc-fsl-easrc-fix-events-v1-0-39d4c766918b@kernel.org> In-Reply-To: <20260205-asoc-fsl-easrc-fix-events-v1-0-39d4c766918b@kernel.org> To: Shengjiu Wang , Xiubo Li , Fabio Estevam , Nicolin Chen , Liam Girdwood Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Brown X-Mailer: b4 0.15-dev-47773 X-Developer-Signature: v=1; a=openpgp-sha256; l=1221; i=broonie@kernel.org; h=from:subject:message-id; bh=LFS4JZHl4UTp3KzrHuIqWCJKhlCNu8bS9Uy/XaYFofc=; b=owEBbQGS/pANAwAKASTWi3JdVIfQAcsmYgBpg+OUA/rkio9uQzm6s9oNWQb/nE3YzGoErWzwt kCuK/D0quiJATMEAAEKAB0WIQSt5miqZ1cYtZ/in+ok1otyXVSH0AUCaYPjlAAKCRAk1otyXVSH 0BsLB/9llq6/DvrDV/bSRPNyMlDET3724YVp7OJBBmC89Vci9LVKyJSWFh/i6x+WAnef0vnyJiX d7xOGmmtdNN4Srh/qUhiAgUD1Z1EDZFtVI6gQaSAmG6uo6+iahGrhixYoKjRLC91ylpaskaq6Ep KlYeHrBUGJPWLl/RBbDCL3DPEFWDcBPXlfPVP9HsyMEsBzup17lswNGCfQwRcekerRZ9Uuq8s8m RaBgAeEElL+R4HMpBLvpTIoyrQmDhKpn4ge2pqVEo0pTbr+0qZTBpUTtqgUHmpC80o7RD6MF+5R BGXu8KJ4REL7K7Yt3MfSkS2a+kXBDMhQLxceddfM9pK62sgA X-Developer-Key: i=broonie@kernel.org; a=openpgp; fpr=3F2568AAC26998F9E813A1C5C3F436CA30F5D8EB ALSA controls should return 1 if the value in the control changed but the control put operation fsl_easrc_iec958_put_bits() unconditionally returns 0, causing ALSA to not generate any change events. This is detected by mixer-test with large numbers of messages in the form: No event generated for Context 3 IEC958 CS5 Context 3 IEC958 CS5.0 orig 5224 read 5225, is_volatile 0 Add a suitable check. Signed-off-by: Mark Brown --- sound/soc/fsl/fsl_easrc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c index e64a0d97afd0..5b6204923e8a 100644 --- a/sound/soc/fsl/fsl_easrc.c +++ b/sound/soc/fsl/fsl_easrc.c @@ -52,10 +52,13 @@ static int fsl_easrc_iec958_put_bits(struct snd_kcontro= l *kcontrol, struct soc_mreg_control *mc =3D (struct soc_mreg_control *)kcontrol->private_value; unsigned int regval =3D ucontrol->value.integer.value[0]; + int ret; + + ret =3D (easrc_priv->bps_iec958[mc->regbase] !=3D regval); =20 easrc_priv->bps_iec958[mc->regbase] =3D regval; =20 - return 0; + return ret; } =20 static int fsl_easrc_iec958_get_bits(struct snd_kcontrol *kcontrol, --=20 2.47.3