cbmk/config/u-boot/default/patches/0005-HACK-rk3399-gru-Remove-assigned-clock-dt-properties-.patch
Alper Nebi Yasak a9997082d7 u-boot: Fix display initialization on gru boards
U-Boot has migrated to using upstream device-tree files for gru boards,
but the clock driver doesn't yet support setting rates for a certain
clock that upstream uses for the eDP display. It happens to work without
it, so for now remove the clock setting until the driver is fixed.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
2024-07-12 16:41:34 +01:00

36 lines
1.1 KiB
Diff

From 1107dc81b24743e77374f1b484a843d81fa0348a Mon Sep 17 00:00:00 2001
From: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Date: Wed, 10 Jul 2024 14:32:19 +0300
Subject: [PATCH] HACK: rk3399: gru: Remove assigned clock dt properties for
EDP node
Having the PCLK_EDP clock in the assigned-clocks property of the `edp`
node means that U-Boot tries to set its rate automatically. This clock
isn't implemented for the RK3399 clock driver, so it fails and prevents
display from being initialized.
The display happens to work fine without it, remove the property until
the clock driver can handle the clock.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
---
arch/arm/dts/rk3399-gru-u-boot.dtsi | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/dts/rk3399-gru-u-boot.dtsi b/arch/arm/dts/rk3399-gru-u-boot.dtsi
index 487dde38d86a..30cfb58aca12 100644
--- a/arch/arm/dts/rk3399-gru-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-gru-u-boot.dtsi
@@ -28,6 +28,9 @@ &cros_ec {
&edp {
rockchip,panel = <&edp_panel>;
+
+ /delete-property/ assigned-clocks;
+ /delete-property/ assigned-clock-rates;
};
&pp1800_audio {
--
2.45.2