linux-kernel - [PATCH 5.15 20/41] ARM: dts: exynos: Fix BCM4330 Bluetooth reset polarity in I9100

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Message-Id: <20220114081545.832107395@linuxfoundation.org>
Date:   Fri, 14 Jan 2022 09:16:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Paul Cercueil <paul@...pouillou.net>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Subject: [PATCH 5.15 20/41] ARM: dts: exynos: Fix BCM4330 Bluetooth reset polarity in I9100

From: Paul Cercueil <paul@...pouillou.net>

commit 9cb6de45a006a9799ec399bce60d64b6d4fcc4af upstream.

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>
Link: https://lore.kernel.org/r/20211031234137.87070-1-paul@crapouillou.net
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm/boot/dts/exynos4210-i9100.dts |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -827,7 +827,7 @@
 		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>;
 	};