linux-kernel - [PATCH 1/2] ARM: dts: exynos: fix polarity of VBUS GPIO

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]

Message-Id: <20220927220504.3744878-1-dmitry.torokhov@gmail.com>
Date:   Tue, 27 Sep 2022 15:05:03 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Alan Stern <stern@...land.harvard.edu>, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] ARM: dts: exynos: fix polarity of VBUS GPIO

EHCI Oxynos (drivers/usb/host/ehci-exynos.c) drives VBUS GPIO high when
trying to power up the bus, therefore the GPIO in DTS must be marked as
"active high". This will be important when EHCI driver is converted to
gpiod API that respects declared polarities.

Fixes: 4e8991def565 ("ARM: dts: exynos: Enable AX88760 USB hub on Origen board")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 arch/arm/boot/dts/exynos4412-origen.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 6db09dba07ff..a3905e27b9cd 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -95,7 +95,7 @@ &exynos_usbphy {
 };
 
 &ehci {
-	samsung,vbus-gpio = <&gpx3 5 1>;
+	samsung,vbus-gpio = <&gpx3 5 GPIO_ACTIVE_HIGH>;
 	status = "okay";
 	phys = <&exynos_usbphy 2>, <&exynos_usbphy 3>;
 	phy-names = "hsic0", "hsic1";
-- 
2.38.0.rc1.362.ged0d419d3c-goog