As discussed in [0], the Rockchip power domain driver does not consider the external supplies (such as VDD_GPU on the RK3568 EVB1). In the scope of this discussion it has been pointed out that turning this voltage on/off on the fly is not explicitly supported. This patch follows the other RK356x boards by example and sets the vdd_gpu regulator to always on. [0] https://lore.kernel.org/linux-rockchip/20211217130919.3035788-1-s.hauer@xxxxxxxxxxxxxx/ Signed-off-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxxx> --- arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts index f3d0bc259166..bb7177ff92ac 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-evb1-v10.dts @@ -219,6 +219,7 @@ regulator-state-mem { vdd_gpu: DCDC_REG2 { regulator-name = "vdd_gpu"; + regulator-always-on; regulator-init-microvolt = <900000>; regulator-initial-mode = <0x2>; regulator-min-microvolt = <500000>; -- 2.30.2
