[2/2] arm64: dts: qcom: sc7280: Disable SS instances in park mode

Commit Message

Krishna Kurapati May 30, 2024, 8:25 a.m. UTC

On SC7280, in host mode, it is observed that stressing out controller
in host mode results in HC died error and only restarting the host
mode fixes it. Disable SS instances in park mode for these targets to
avoid host controller being dead.

Reported-by: Doug Anderson <[e-mail]>
Cc: <[e-mail]>
Fixes: bb9efa59c665 ("arm64: dts: qcom: sc7280: Add USB related nodes")
Signed-off-by: Krishna Kurapati <[e-mail]>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 1 +
 1 file changed, 1 insertion(+)

Comments

Doug Anderson May 30, 2024, 1:31 p.m. UTC | #1

Hi,

On Thu, May 30, 2024 at 1:26 AM Krishna Kurapati
<[e-mail]> wrote:
>
> On SC7280, in host mode, it is observed that stressing out controller
> in host mode results in HC died error and only restarting the host
> mode fixes it. Disable SS instances in park mode for these targets to
> avoid host controller being dead.
>
> Reported-by: Doug Anderson <[e-mail]>
> Cc: <[e-mail]>
> Fixes: bb9efa59c665 ("arm64: dts: qcom: sc7280: Add USB related nodes")
> Signed-off-by: Krishna Kurapati <[e-mail]>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 1 +
>  1 file changed, 1 insertion(+)

Reviewed-by: Douglas Anderson <[e-mail]>

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 41f51d326111..e0d3eeb6f639 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -4131,6 +4131,7 @@  usb_1_dwc3: usb@a600000 {
 				iommus = <&apps_smmu 0xe0 0x0>;
 				snps,dis_u2_susphy_quirk;
 				snps,dis_enblslpm_quirk;
+				snps,parkmode-disable-ss-quirk;
 				phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
 				phy-names = "usb2-phy", "usb3-phy";
 				maximum-speed = "super-speed";