Skip to contentSkip to conversation

arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU

PATCH In review Guido Günther 2 participants 4 messages Apr 21, 2020 – Apr 23, 2020

Subsystems (2)
Device tree bindings Arm i.MX and Layerscape
lore
Share & tools
lore

Guido Günther

author
#0 lore raw

v2 cover arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU

According to the imx8mq data sheet running VDD_GPU at 0.9V is enough when not overclocking to 1GHz (which we currently don't do).

changes from v2:
- rebase aginst Shawn's tree
- fix a warning for the typec connector

Guido Günther (2):
arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
arm64: dts: Don't use underscore in node name

 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
Signature · 1 line
2.26.1
author
#1 lore raw

PATCH v2 1/2 arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU

According to the imx8mq data sheet running VDD_GPU at 0.9V is enough when not overclocking to 1GHz (which we currently don't do).

Signed-off-by Guido Günther <[email protected]>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +1 -1
index 10eca94194be..0526ebf0da0f 100644
@@ -318,7 +318,7 @@ buck3_reg: BUCK3 {
 				regulator-min-microvolt = <700000>;
 				regulator-max-microvolt = <1300000>;
 				regulator-boot-on;
-				rohm,dvs-run-voltage = <1000000>;
+				rohm,dvs-run-voltage = <900000>;
 			};
 
 			buck4_reg: BUCK4 {
Signature · 7 lines
2.26.1


_______________________________________________
linux-arm-kernel mailing list
[email protected]
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
author
#2 lore raw

PATCH v2 2/2 arm64: dts: Don't use underscore in node name

In reply to Guido Günther

Rename usb_typec to usb-typec to get a rid of a warning when building dtb with warnings enabled.

Signed-off-by Guido Günther <[email protected]>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +1 -1
index 0526ebf0da0f..6900ac274f5b 100644
@@ -410,7 +410,7 @@ ldo7_reg: LDO7 {
 		};
 	};
 
-	typec_ptn5100: usb_typec@52 {
+	typec_ptn5100: usb-typec@52 {
 		compatible = "nxp,ptn5110";
 		reg = <0x52>;
 		pinctrl-names = "default";
Signature · 1 line
2.26.1
#3 lore raw
In reply to Guido Günther
Quoted 10 lines · Guido Günther

According to the imx8mq data sheet running VDD_GPU at 0.9V is enough when not overclocking to 1GHz (which we currently don't do).

changes from v2:
- rebase aginst Shawn's tree
- fix a warning for the typec connector

Guido Günther (2):
arm64: dts: imx8mq-librem5-devkit: Use 0.9V for VDD_GPU
arm64: dts: Don't use underscore in node name

This one should also be prefixed like arm64: dts: imx8mq-librem5-devkit:

I fixed it up and applied both.

Shawn

Quoted 7 lines
 arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
Signature · 1 line
2.26.1