diff mbox series

arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc

Message ID 20210619121446.7802-1-knaerzche@gmail.com
State Accepted
Commit 06b2818678d9b35102c9816ffaf6893caf306ed0
Headers show
Series arm64: dts: rockchip: Re-add regulator-boot-on, regulator-always-on for vdd_gpu on rk3399-roc-pc | expand

Commit Message

Alex Bee June 19, 2021, 12:14 p.m. UTC
This might be a limitation of either the current panfrost driver
devfreq implementation or how the gpu is implemented in RK3399 SoC.
The gpu regulator must never get disabled or the registers get
(randomly?) inaccessable by the driver. (see all other RK3399 boards)

Fixes: ec7d731d81e7 ("arm64: dts: rockchip: Add node for gpu on rk3399-roc-pc")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index da3021dc0ff3..8b27ee4be755 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -494,6 +494,8 @@  vdd_gpu: regulator@41 {
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
 		regulator-ramp-delay = <1000>;
+		regulator-always-on;
+		regulator-boot-on;
 		vin-supply = <&vcc3v3_sys>;
 
 		regulator-state-mem {