arm64: dts: rockchip: Explicitly pinmux the regulator configuration GPIOs on rk3399-orangepi

Those GPIOs define which register is used by the GPU & CPUB regulators
for sleep mode. The register is defined here, so better have the GPIOs
explicitly set too.
Signed-off-by: Alexis Ballier <aballier@gentoo.org>
Cc: devicetree@vger.kernel.org
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/20200206151025.3813-2-aballier@gentoo.orgSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-orangepi.dts

@@ -432,6 +432,8 @@ vdd_cpu_b: regulator@40 {
 		compatible = "silergy,syr827";
 		reg = <0x40>;
 		fcs,suspend-voltage-selector = <1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&cpu_b_sleep>;
 		regulator-name = "vdd_cpu_b";
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
@@ -449,6 +451,8 @@ vdd_gpu: regulator@41 {
 		compatible = "silergy,syr828";
 		reg = <0x41>;
 		fcs,suspend-voltage-selector = <1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpu_sleep>;
 		regulator-name = "vdd_gpu";
 		regulator-min-microvolt = <712500>;
 		regulator-max-microvolt = <1500000>;
@@ -561,6 +565,14 @@ phy_rstb: phy-rstb {
 	};
 
 	pmic {
+		cpu_b_sleep: cpu-b-sleep {
+			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		gpu_sleep: gpu-sleep {
+			rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
 		pmic_int_l: pmic-int-l {
 			rockchip,pins =
 				<1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;