target/linux/bcm27xx/patches-6.1/950-0796-overlays-allo-katana-dac-audio-Reduce-I2C-clock.patch

   1 From d4c3133378b377ee519ea50247339cd61221fc47 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 21 Jun 2023 09:20:36 +0100
   4 Subject: [PATCH] overlays: allo-katana-dac-audio: Reduce I2C clock
   5
   6 Higher speeds have been shown to cause data corruption on a Pi 4,
   7 possibly due to clock-stretching.
   8
   9 See: https://github.com/raspberrypi/linux/issues/5511
  10
  11 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  12 ---
  13  arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts | 1 +
  14  1 file changed, 1 insertion(+)
  15
  16 --- a/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
  17 +++ b/arch/arm/boot/dts/overlays/allo-katana-dac-audio-overlay.dts
  18 @@ -30,6 +30,7 @@
  19                         #address-cells = <1>;
  20                         #size-cells = <0>;
  21                         status = "okay";
  22 +                       clock-frequency = <50000>;
  23
  24                         allo-katana-codec@30 {
  25                                 #sound-dai-cells = <0>;