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arm64: zynqmp: Expose AMS to userspace as HWMON

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Expose the AMS to userspace, allowing monitoring of internal voltages
and temperatures. For compatibility, we keep the node name the same as
on the SM-K26, and we keep the ZCU100 Rev C. around (since it is named
differently).

Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Link: https://lore.kernel.org/r/20240812215129.3599832-3-sean.anderson@linux.dev
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Sean Anderson 2024-08-12 17:51:27 -04:00 • committed by Michal Simek
parent 7e1ef5ccb0
commit e279e4b2fa
2 changed files with 14 additions and 14 deletions
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14
arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
View file

@ -90,20 +90,6 @@
};
};
ams {
compatible = "iio-hwmon";
io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
<&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
<&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
<&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
<&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
<&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
<&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
<&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
<&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
<&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
};
pwm-fan {
compatible = "pwm-fan";
status = "okay";

14
arch/arm64/boot/dts/xilinx/zynqmp.dtsi
View file

@ -392,6 +392,20 @@
};
};
ams {
compatible = "iio-hwmon";
io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
<&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
<&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
<&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
<&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
<&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
<&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
<&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
<&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
<&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
};
amba: axi {
compatible = "simple-bus";
bootph-all;