diff options
| author | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2024-07-10 18:04:13 +0300 |
|---|---|---|
| committer | Alper Nebi Yasak <alpernebiyasak@gmail.com> | 2024-07-11 23:16:42 +0300 |
| commit | 708fc14c605b4d95a80e2476485387551a62d095 (patch) | |
| tree | 61bfed2a4295575221e8de8a314f28024bcef436 | |
| parent | 0cc7736b40d4634dd1e54aa6cc8ee116565e63bc (diff) | |
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>
| -rw-r--r-- | config/u-boot/default/patches/0005-HACK-rk3399-gru-Remove-assigned-clock-dt-properties-.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/config/u-boot/default/patches/0005-HACK-rk3399-gru-Remove-assigned-clock-dt-properties-.patch b/config/u-boot/default/patches/0005-HACK-rk3399-gru-Remove-assigned-clock-dt-properties-.patch new file mode 100644 index 00000000..73789811 --- /dev/null +++ b/config/u-boot/default/patches/0005-HACK-rk3399-gru-Remove-assigned-clock-dt-properties-.patch @@ -0,0 +1,36 @@ +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 + |