[PATCH] ARM: dts: bcm283x: Fix hdmi hpd-gpio pin

Florian Klink flokli at flokli.de
Mon Jul 15 16:03:11 PDT 2024


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 at flokli.de>
---
 arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts b/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
index 72d26d130efa..85f54fa595aa 100644
--- a/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
+++ b/arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts
@@ -77,7 +77,7 @@ &gpio {
 };
 
 &hdmi {
-	hpd-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+	hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>;
 	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 	status = "okay";
 };
-- 
2.45.1




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