linux-kernel - [PATCH] arm64: dts: qcom: msm8916-ufi: make UDC dual mode

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-next>] [day] [month] [year] [list]

Date:   Sat, 6 May 2023 00:32:51 +0800
From:   Yang Xiwen <forbidden405@...look.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Nikita Travkin <nikita@...n.ru>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: msm8916-ufi: make UDC dual mode

It's possible to use this device with a (non-standard) hub to get USB
working in host mode, but dr_mode="peripheral" prevents the UDC to
do so.
Remove dr_mode="peripheral" and add usb-role-switch so that it defaults
to otg mode and can be switched to host mode in userspace.

Signed-off-by: Yang Xiwen <forbidden405@...look.com>
---
 arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
b/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
index 50bae6f214f1f..08ecd901c1af6 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-ufi.dtsi
@@ -109,7 +109,7 @@ &sdhc_1 {

 &usb {
 	extcon = <&pm8916_usbin>;
-	dr_mode = "peripheral";
+	usb-role-switch;

 	status = "okay";
 };
-- 
2.39.1


-- 
Best regards,
Yang Xiwen