[1/2] ARM: dts: exynos: Fix G3D power domain supply on Odroid XU3/XU4/HC1 boards
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Message ID 20200228145502.8316-1-m.szyprowski@samsung.com
State Mainlined
Commit fbec0a1f775aa03ebb86c16fa761e6f52bb299ea
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Series
  • [1/2] ARM: dts: exynos: Fix G3D power domain supply on Odroid XU3/XU4/HC1 boards
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Commit Message

Marek Szyprowski Feb. 28, 2020, 2:55 p.m. UTC
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 <m.szyprowski@samsung.com>
---
 arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 1 +
 1 file changed, 1 insertion(+)

Comments

Krzysztof Kozlowski Feb. 29, 2020, 2:41 p.m. UTC | #1
On Fri, Feb 28, 2020 at 03:55:01PM +0100, Marek Szyprowski wrote:
> 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 <m.szyprowski@samsung.com>
> ---
>  arch/arm/boot/dts/exynos5422-odroid-core.dtsi | 1 +

Thanks, applied.

Best regards,
Krzysztof

Patch
diff mbox series

diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 5cf1aed20490..ab27ff8bc3dc 100644
--- 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;