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From a4e7897eef1ad4628572a6abfd30291209a0bf43 Mon Sep 17 00:00:00 2001
From: Richard Oliver <richard.oliver@raspberrypi.com>
Date: Tue, 25 Feb 2025 15:06:23 +0000
Subject: [PATCH] dts: Add hogs for RP1 GPIO 46/48 on CM5
On Pi5 5, GPIOs 46/48 are made available on the 'CAM/DISP 1' connector as
'CD1_IO0_MICCLK'/'CD1_IO1_MICDAT1'. These GPIOs are not connected on
CM5.
Add hogs for GPIO 46/48 on CM5 to prevent camera drivers from
inadvertently using them when connected to 'CAM/DISP 1'
Signed-off-by: Richard Oliver <richard.oliver@raspberrypi.com>
---
arch/arm64/boot/dts/broadcom/bcm2712-rpi-cm5.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-cm5.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-cm5.dtsi
@@ -734,6 +734,18 @@ spi10_cs_pins: &spi10_cs_gpio1 {};
function = "vbus1";
pins = "gpio42", "gpio43";
};
+
+ micclk1_hog {
+ gpio-hog;
+ gpios = <46 GPIO_ACTIVE_HIGH>;
+ output-high;
+ };
+
+ micdat1_hog {
+ gpio-hog;
+ gpios = <48 GPIO_ACTIVE_HIGH>;
+ output-high;
+ };
};
/ {
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