ARM: dts: exynos: Fix G3D power domain supply on Odroid XU3/XU4/HC1 boards

G3D power domain in Exynos5422 SoC is supplied from VDD_G3D. Besides the
main GPU MALI module it also contains the power domain control logic and
clocks. Turning the VDD_G3D power supply off causes the power domain to
fail to operate properly and breaks for example system suspend/resume.
GPU should use VDD_G3D supply mainly to control the DVFS.

Fixes: 1a5a85c56402 ("ARM: dts: exynos: Add Mali/GPU node on Exynos5420 and enable it on Odroid XU3/4")
Signed-off-by: Marek Szyprowski <[email protected]>
Signed-off-by: Krzysztof Kozlowski <[email protected]>

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 5cf1aed20490d2160c9ad3e7e64808873ac798f8..ab27ff8bc3dca2d7c86314f44aaaf63f3e7aba8d 100644 (file)
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -901,6 +901,7 @@
                                regulator-min-microvolt = <800000>;
                                regulator-max-microvolt = <1400000>;
                                regulator-boot-on;
+                               regulator-always-on;
 
                                regulator-state-mem {
                                        regulator-off-in-suspend;