mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 01:59:02 +00:00
44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
|
From 89a74fc5d367441bf4912e9158f0640ea3494b9e Mon Sep 17 00:00:00 2001
|
||
|
|
From: Lech Perczak <lech.perczak@gmail.com>
|
||
|
|
Date: Fri, 17 Nov 2023 21:33:04 +0100
|
||
|
|
Subject: [PATCH] ARM: dts: nxp: imx7d-pico: add cpu-supply nodes
|
||
|
|
|
||
|
|
The PICO-IMX7D SoM has the usual power supply configuration using
|
||
|
|
output sw1a of PF3000 PMIC, which was defined in downstream derivative
|
||
|
|
of linux-imx (see link) in the sources for "Android Things" devkit.
|
||
|
|
It is required to support CPU frequency scaling.
|
||
|
|
|
||
|
|
Map the respective "cpu-supply" nodes of each core to sw1a of the PMIC.
|
||
|
|
|
||
|
|
Enabling them causes cpufreq-dt, and imx-thermal drivers to probe
|
||
|
|
successfully, and CPU frequency scaling to function.
|
||
|
|
|
||
|
|
Link: https://android.googlesource.com/platform/hardware/bsp/kernel/nxp/imx-v4.1/+/o-iot-preview-5/arch/arm/boot/dts/imx7d-pico.dtsi#849
|
||
|
|
|
||
|
|
Cc: Fabio Estevam <festevam@gmail.com>
|
||
|
|
Cc: Shawn Guo <shawnguo@kernel.org>
|
||
|
|
Cc: Sascha Hauer <s.hauer@pengutronix.de>
|
||
|
|
|
||
|
|
Signed-off-by: Lech Perczak <lech.perczak@gmail.com>
|
||
|
|
---
|
||
|
|
arch/arm/boot/dts/imx7d-pico.dtsi | 8 ++++++++
|
||
|
|
1 file changed, 8 insertions(+)
|
||
|
|
|
||
|
|
--- a/arch/arm/boot/dts/imx7d-pico.dtsi
|
||
|
|
+++ b/arch/arm/boot/dts/imx7d-pico.dtsi
|
||
|
|
@@ -108,6 +108,14 @@
|
||
|
|
assigned-clock-rates = <0>, <32768>;
|
||
|
|
};
|
||
|
|
|
||
|
|
+&cpu0 {
|
||
|
|
+ cpu-supply = <&sw1a_reg>;
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
+&cpu1 {
|
||
|
|
+ cpu-supply = <&sw1a_reg>;
|
||
|
|
+};
|
||
|
|
+
|
||
|
|
&ecspi3 {
|
||
|
|
cs-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>;
|
||
|
|
pinctrl-names = "default";
|