arm64: dts: rockchip: set display regulators to always-on on BPI-R2-Pro

The gpu power supply needs to stay always on until the issues with power-
domains not being regulator aware is resolved. Otherwise we run into
issues where the gpu-regulator gets shut down and we start getting mmu
faults.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20220606170803.478082-2-linux@fw-web.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-bpi-r2-pro.dts b/arch/arm64/boot/dts/rockchip/rk3568-bpi-r2-pro.dts
index f7339f4..01f9cdd 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3568-bpi-r2-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-bpi-r2-pro.dts
@@ -215,6 +215,7 @@
 
                        vdd_gpu: DCDC_REG2 {
                                regulator-name = "vdd_gpu";
+                               regulator-always-on;
                                regulator-init-microvolt = <900000>;
                                regulator-initial-mode = <0x2>;
                                regulator-min-microvolt = <500000>;
@@ -264,6 +265,7 @@
 
                        vdda0v9_image: LDO_REG1 {
                                regulator-name = "vdda0v9_image";
+                               regulator-always-on;
                                regulator-min-microvolt = <900000>;
                                regulator-max-microvolt = <900000>;
 
@@ -359,6 +361,7 @@
 
                        vcca1v8_image: LDO_REG9 {
                                regulator-name = "vcca1v8_image";
+                               regulator-always-on;
                                regulator-min-microvolt = <1800000>;
                                regulator-max-microvolt = <1800000>;