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| author | Lech Perczak <lech.perczak@gmail.com> | 2023-11-18 02:23:52 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-12-06 04:32:23 +0300 |
| commit | 32596b101f6cd87ab1f6e6a1c2a44c70546dde48 (patch) | |
| tree | 5284d937ff385dde2a23446a5becc8b66a65e447 /arch/arm | |
| parent | c9d4affbe60a9597ca9df878b5c02bdb9a636e3c (diff) | |
| download | linux-32596b101f6cd87ab1f6e6a1c2a44c70546dde48.tar.xz | |
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>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/boot/dts/nxp/imx/imx7d-pico.dtsi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-pico.dtsi b/arch/arm/boot/dts/nxp/imx/imx7d-pico.dtsi index c5eefe89cd99..8d5037ac03c7 100644 --- a/arch/arm/boot/dts/nxp/imx/imx7d-pico.dtsi +++ b/arch/arm/boot/dts/nxp/imx/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"; |