bcm27xx: add kernel 5.10 support

[openwrt/staging/chunkeey.git] / target / linux / bcm27xx / patches-5.10 / 950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch

diff --git a/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch b/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch
new file mode 100644 (file)
index 0000000..d5be433
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0452-ARM-dts-Declare-Pi400-and-CM4-have-no-audio-pins.patch
@@ -0,0 +1,41 @@
+From a3028b49ed28dfcd27fb12dd811ef5572fc80c30 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+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 <phil@raspberrypi.com>
+---
+ 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
+@@ -565,8 +565,8 @@
+ 
+ &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
+@@ -556,6 +556,8 @@
+ 
+ &gpio {
+       audio_pins: audio_pins {
++              brcm,pins = <>;
++              brcm,function = <>;
+       };
+ };
+