ARM: dts: bcm2837-rpi-cm3-io3: Fix HDMI hpd-gpio pin

[ Upstream commit dc7785e4723510616d776862ddb4c08857a1bdb2 ]

HDMI_HPD_N_1V8 is connected to GPIO pin 0, not 1.

This fixes HDMI hotplug/output detection.

See https://datasheets.raspberrypi.com/cm/cm3-schematics.pdf

Signed-off-by: Florian Klink <flokli@flokli.de>
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20240715230311.685641-1-flokli@flokli.de
Reviewed-by: Stefan Wahren <wahrenst@gmx.net>
Fixes: a54fe8a6cf66 ("ARM: dts: add Raspberry Pi Compute Module 3 and IO board")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts b/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
index 3dfce4312dfc4ee7371b48031cd45acf145b9a00..a2ef43c2105aa149e63435ec563b4ff47b3c6409 100644 (file)
--- a/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts
@@ -77,7 +77,7 @@
 };
 
 &hdmi {
-       hpd-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+       hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>;
        power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
        status = "okay";
 };