linux-kernel - [PATCH] ARM: dts: exynos/i9100: Fix Bluetooth node

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Message-Id: <20211030121410.65834-1-paul@crapouillou.net>
Date:   Sat, 30 Oct 2021 13:14:10 +0100
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>
Subject: [PATCH] ARM: dts: exynos/i9100: Fix Bluetooth node

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.

Also switch away from using the deprecated 'host-wakeup-gpios' property,
and use a 'host-wakeup' interrupt instead.

Signed-off-by: Paul Cercueil <paul@...pouillou.net>
---
 arch/arm/boot/dts/exynos4210-i9100.dts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4210-i9100.dts b/arch/arm/boot/dts/exynos4210-i9100.dts
index 55922176807e..76b1017e05e8 100644
--- a/arch/arm/boot/dts/exynos4210-i9100.dts
+++ b/arch/arm/boot/dts/exynos4210-i9100.dts
@@ -827,9 +827,12 @@ 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>;
+
+		interrupt-parent = <&gpx2>;
+		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-names = "host-wakeup";
 	};
 };
 
-- 
2.33.0