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