From mboxrd@z Thu Jan 1 00:00:00 1970 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 CA4EB2248B3; Mon, 2 Jun 2025 15:11:26 +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=1748877086; cv=none; b=FVOH06Y0BO4et+Gj1aXeuzX5SL8b10ihgOeDGUd3EIQ29E8rpi4Ohl4NKfj4ulNLxetfv9C1ugHA5xQbYLtdxc0fbBahE71fzBCvuT1OC9GYv+2lGmBFhCgfdfGIDJUEctX9wvXcCrHquQKbMnmBtzusww5iQCwmN0cKFdWVLNc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748877086; c=relaxed/simple; bh=KOvPiQVaV1lgom0jEw7FZUBPRs6CgOCCZ4pWs7+Wy8k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=foMJ7PkB+txDX7y6rY9XpN9jnQesCLTFRM2VWx2rFJBE/fTa7QW87qMJhtB/bpKsmT8GuxvojKmo+KC71cC0PN/nJH6U+A8lZwQMVKAZlW56hlxEdQlkd6I4XPUV7NGEgXk3C0Ue01NnY8SMPTPrL1b7jcpdbU6Vt10WcHZ0ZGY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=w0q2zq+T; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="w0q2zq+T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD535C4CEEB; Mon, 2 Jun 2025 15:11:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748877086; bh=KOvPiQVaV1lgom0jEw7FZUBPRs6CgOCCZ4pWs7+Wy8k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=w0q2zq+TMUZuL78SAfb80pCLEKIF9uCD+/JjiaR0iM/FB3REpM685rcXjZytu6udu vgcYfM9yXHvjXNbsfJXXYQR+I6z2c1xgSV0rJdFZxyRwIlE/ppGQCCsutq+neBvUgj OAC4kEQgBD2WkcFlFcdR33SXRp1QNoHhZWGs2udI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Martin=20Povi=C5=A1er?= , Mark Brown , Sasha Levin Subject: [PATCH 6.1 167/325] ASoC: ops: Enforce platform maximum on initial value Date: Mon, 2 Jun 2025 15:47:23 +0200 Message-ID: <20250602134326.602192758@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250602134319.723650984@linuxfoundation.org> References: <20250602134319.723650984@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Martin Povišer [ Upstream commit 783db6851c1821d8b983ffb12b99c279ff64f2ee ] Lower the volume if it is violating the platform maximum at its initial value (i.e. at the time of the 'snd_soc_limit_volume' call). Signed-off-by: Martin Povišer [Cherry picked from the Asahi kernel with fixups -- broonie] Signed-off-by: Mark Brown Link: https://patch.msgid.link/20250208-asoc-volume-limit-v1-1-b98fcf4cdbad@kernel.org Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/soc-ops.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/sound/soc/soc-ops.c b/sound/soc/soc-ops.c index b4cfc34d00ee6..eff1355cc3df0 100644 --- a/sound/soc/soc-ops.c +++ b/sound/soc/soc-ops.c @@ -638,6 +638,33 @@ int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, } EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); +static int snd_soc_clip_to_platform_max(struct snd_kcontrol *kctl) +{ + struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value; + struct snd_ctl_elem_value uctl; + int ret; + + if (!mc->platform_max) + return 0; + + ret = kctl->get(kctl, &uctl); + if (ret < 0) + return ret; + + if (uctl.value.integer.value[0] > mc->platform_max) + uctl.value.integer.value[0] = mc->platform_max; + + if (snd_soc_volsw_is_stereo(mc) && + uctl.value.integer.value[1] > mc->platform_max) + uctl.value.integer.value[1] = mc->platform_max; + + ret = kctl->put(kctl, &uctl); + if (ret < 0) + return ret; + + return 0; +} + /** * snd_soc_limit_volume - Set new limit to an existing volume control. * @@ -662,7 +689,7 @@ int snd_soc_limit_volume(struct snd_soc_card *card, struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value; if (max <= mc->max - mc->min) { mc->platform_max = max; - ret = 0; + ret = snd_soc_clip_to_platform_max(kctl); } } return ret; -- 2.39.5