linux-kernel - [PATCH v2 1/2] ARM: dts: exynos/i9100: Fix BCM4330 Bluetooth reset polarity

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Message-Id: <20211031234137.87070-1-paul@crapouillou.net>
Date:   Sun, 31 Oct 2021 23:41:36 +0000
From:   Paul Cercueil <paul@...pouillou.net>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>, stable@...r.kernel.org
Subject: [PATCH v2 1/2] ARM: dts: exynos/i9100: Fix BCM4330 Bluetooth reset polarity

The reset GPIO was marked active-high, which is against what's specified
in the documentation. Mark the reset GPIO as active-low. With this
change, Bluetooth can now be used on the i9100.

Fixes: 8620cc2f99b7 ("ARM: dts: exynos: Add devicetree file for the Galaxy S2")
Cc: stable@...r.kernel.org
Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 arch/arm/boot/dts/exynos4210-i9100.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
index 55922176807e..5f5d9b135736 100644
--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -827,7 +827,7 @@ bluetooth {
 		compatible = "brcm,bcm4330-bt";
 
 		shutdown-gpios = <&gpl0 4 GPIO_ACTIVE_HIGH>;
-		reset-gpios = <&gpl1 0 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpl1 0 GPIO_ACTIVE_LOW>;
 		device-wakeup-gpios = <&gpx3 1 GPIO_ACTIVE_HIGH>;
 		host-wakeup-gpios = <&gpx2 6 GPIO_ACTIVE_HIGH>;
 	};
-- 
2.33.0