linux-kernel - [PATCH v2 2/4] ARM: dts: qcom: Correct USB3503 GPIOs polarity

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Message-Id: <20191211144638.24676-3-m.szyprowski@samsung.com>
Date:   Wed, 11 Dec 2019 15:46:36 +0100
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     linux-usb@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stefan Agner <stefan@...er.ch>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: [PATCH v2 2/4] ARM: dts: qcom: Correct USB3503 GPIOs polarity

Current USB3503 driver ignores GPIO polarity and always operates as if the
GPIO lines were flagged as ACTIVE_HIGH. Fix the polarity for the existing
USB3503 chip applications to match the chip specification and common
convention for naming the pins. The only pin, which has to be ACTIVE_LOW
is the reset pin. The remaining are ACTIVE_HIGH. This change allows later
to fix the USB3503 driver to properly use generic GPIO bindings and read
polarity from DT.

Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
index 26160c324802..942e3a2cac35 100644
--- a/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
+++ b/arch/arm/boot/dts/qcom-mdm9615-wp8548-mangoh-green.dts
@@ -143,7 +143,7 @@
 				compatible = "smsc,usb3503a";
 				reg = <0x8>;
 				connect-gpios = <&gpioext2 1 GPIO_ACTIVE_HIGH>;
-				intn-gpios = <&gpioext2 0 GPIO_ACTIVE_LOW>;
+				intn-gpios = <&gpioext2 0 GPIO_ACTIVE_HIGH>;
 				initial-mode = <1>;
 			};
 		};
-- 
2.17.1