linux-kernel - [PATCH 2/2] clk: qcom: gcc-msm8996: Update the .pwrsts for usb gdsc

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 for Android: free password hash cracker in your pocket

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

Date:   Fri,  3 Mar 2023 03:29:12 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org
Cc:     marijn.suijten@...ainline.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] clk: qcom: gcc-msm8996: Update the .pwrsts for usb gdsc

The USB controller on MSM8996 doesn't retain its state when the system
goes into low power state and the GDSCs are turned off.

This can be observed by the USB connection not coming back alive after
putting the device into suspend, essentially breaking USB.

Fix this by updating the .pwrsts for the USB GDSCs so they only
transition to retention state in low power.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/clk/qcom/gcc-msm8996.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gcc-msm8996.c b/drivers/clk/qcom/gcc-msm8996.c
index e16163706735..e068c9e51441 100644
--- a/drivers/clk/qcom/gcc-msm8996.c
+++ b/drivers/clk/qcom/gcc-msm8996.c
@@ -3455,7 +3455,7 @@ static struct gdsc usb30_gdsc = {
 	.pd = {
 		.name = "usb30",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc pcie0_gdsc = {
-- 
2.39.2