From 747df57eabbe2e3b5bd47e268aa42658a57749ca Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 3 Feb 2021 16:23:43 +0000 Subject: [PATCH] ARM: dts: Declare Pi400 and CM4 have no audio pins The audio_pins node is left as a placeholder for the audremap overlay, and it must have (empty) brcm,function and brcm,pins properties otherwise it will be rejected by the pinctrl driver. See: https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=301891 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/bcm2711-rpi-400.dts | 4 ++-- arch/arm/boot/dts/bcm2711-rpi-cm4.dts | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) --- a/arch/arm/boot/dts/bcm2711-rpi-400.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-400.dts @@ -495,8 +495,8 @@ &gpio { audio_pins: audio_pins { - brcm,pins = <40 41>; - brcm,function = <4>; + brcm,pins = <>; + brcm,function = <>; }; }; --- a/arch/arm/boot/dts/bcm2711-rpi-cm4.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-cm4.dts @@ -434,6 +434,8 @@ &gpio { audio_pins: audio_pins { + brcm,pins = <>; + brcm,function = <>; }; };