linux-kernel - [PATCH v2 2/7] arm64: dts: meson-sm1-odroid: set tf

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Message-Id: <20210607065435.577334-3-narmstrong@baylibre.com>
Date:   Mon,  7 Jun 2021 08:54:30 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com, jbrunet@...libre.com,
        martin.blumenstingl@...glemail.com
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tobetter@...il.com, Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH v2 2/7] arm64: dts: meson-sm1-odroid: set tf_io regulator gpio as open source

According to Odroid-C4 & HC4 Schematics, the TF_3V3N_1V8_EN can be in Hi-Z for 3v3,
and since it's the default GPIOAO_6 mode at reset, let switch this GPIO as Open-Source
to drive for 1, and input for 0.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
index af40ba461074..e64359163331 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid.dtsi
@@ -52,7 +52,7 @@ tf_io: gpio-regulator-tf_io {
 		enable-active-high;
 		regulator-always-on;
 
-		gpios = <&gpio_ao GPIOAO_6 GPIO_ACTIVE_HIGH>;
+		gpios = <&gpio_ao GPIOAO_6 GPIO_OPEN_SOURCE>;
 		gpios-states = <0>;
 
 		states = <3300000 0>,
-- 
2.25.1