linux-kernel - [PATCH v1 1/1] soundwire: qcom: disable stop clock on 1.3.0 and below

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Sat, 13 Apr 2024 09:42:24 +0300
From: Anton Bambura <jenneron@...tmarketos.org>
To: Andy Gross <agross@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Vinod Koul <vkoul@...nel.org>,
	Bard Liao <yung-chuan.liao@...ux.intel.com>,
	Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
	Sanyog Kale <sanyog.r.kale@...el.com>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc: linux-arm-msm@...r.kernel.org,
	alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/1] soundwire: qcom: disable stop clock on 1.3.0 and below

This patch returns back the behavior of disabling stop clock on soundwire
1.3.0 and below which seems to have been altered by accident which
results in broken audio on sdm845 + wcd9340. For example, on AYN Odin and
Lenovo Yoga C630 devices.

Fixes: 4830bfa2c812 ("soundwire: qcom: set clk stop need reset flag at runtime")
Signed-off-by: Anton Bambura <jenneron@...tmarketos.org>
---
 drivers/soundwire/qcom.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index a1e2d6c98186..bc03484a28e8 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -628,6 +628,9 @@ static int qcom_swrm_enumerate(struct sdw_bus *bus)
 			}
 		}
 
+		if (ctrl->version <= SWRM_VERSION_1_3_0)
+			ctrl->clock_stop_not_supported = true;
+
 		if (!found) {
 			qcom_swrm_set_slave_dev_num(bus, NULL, i);
 			sdw_slave_add(bus, &id, NULL);
-- 
2.43.0