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Commit acde9078 authored by Chanh Nguyen's avatar Chanh Nguyen Committed by Joel Stanley
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ARM: dts: aspeed: mtmitchell: Update ADC sensors for Mt.Mitchell DVT systems 

Change to use I2C ADC controller (ltc2497) for Mt.Mitchell DVT and
later hardware.
Signed-off-by: default avatarChanh Nguyen <chanh@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20230620092537.20007-3-chanh@os.amperecomputing.comSigned-off-by: default avatarJoel Stanley <joel@jms.id.au>
parent d50b1baf
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Showing with 66 additions and 41 deletions
arch/arm/boot/dts/aspeed/aspeed-bmc-ampere-mtmitchell.dts
View file @ acde9078
......@@ -66,174 +66,192 @@ gpioI5mux: mux-controller {
adc0mux: adc0mux {
compatible = "io-channel-mux";
io-channels = <&adc0 0>;
io-channels = <&adc_i2c_0 0>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc1mux: adc1mux {
compatible = "io-channel-mux";
io-channels = <&adc0 1>;
io-channels = <&adc_i2c_0 1>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc2mux: adc2mux {
compatible = "io-channel-mux";
io-channels = <&adc0 2>;
io-channels = <&adc_i2c_0 2>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc3mux: adc3mux {
compatible = "io-channel-mux";
io-channels = <&adc0 3>;
io-channels = <&adc_i2c_0 3>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc4mux: adc4mux {
compatible = "io-channel-mux";
io-channels = <&adc0 4>;
io-channels = <&adc_i2c_0 4>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc5mux: adc5mux {
compatible = "io-channel-mux";
io-channels = <&adc0 5>;
io-channels = <&adc_i2c_0 5>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc6mux: adc6mux {
compatible = "io-channel-mux";
io-channels = <&adc0 6>;
io-channels = <&adc_i2c_0 6>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc7mux: adc7mux {
compatible = "io-channel-mux";
io-channels = <&adc0 7>;
io-channels = <&adc_i2c_0 7>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc8mux: adc8mux {
compatible = "io-channel-mux";
io-channels = <&adc1 0>;
io-channels = <&adc_i2c_0 8>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc9mux: adc9mux {
compatible = "io-channel-mux";
io-channels = <&adc1 1>;
io-channels = <&adc_i2c_0 9>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc10mux: adc10mux {
compatible = "io-channel-mux";
io-channels = <&adc1 2>;
io-channels = <&adc_i2c_0 10>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc11mux: adc11mux {
compatible = "io-channel-mux";
io-channels = <&adc1 3>;
io-channels = <&adc_i2c_0 11>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc12mux: adc12mux {
compatible = "io-channel-mux";
io-channels = <&adc1 4>;
io-channels = <&adc_i2c_0 12>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc13mux: adc13mux {
compatible = "io-channel-mux";
io-channels = <&adc1 5>;
io-channels = <&adc_i2c_0 13>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc14mux: adc14mux {
compatible = "io-channel-mux";
io-channels = <&adc1 6>;
io-channels = <&adc_i2c_0 14>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
adc15mux: adc15mux {
compatible = "io-channel-mux";
io-channels = <&adc1 7>;
io-channels = <&adc_i2c_0 15>;
#io-channel-cells = <1>;
io-channel-names = "parent";
mux-controls = <&gpioI5mux>;
settle-time-us = <10000>;
channels = "s0", "s1";
};
iio-hwmon {
compatible = "iio-hwmon";
io-channels = <&adc0mux 0>, <&adc0mux 1>,
<&adc1mux 0>, <&adc1mux 1>,
<&adc2mux 0>, <&adc2mux 1>,
<&adc3mux 0>, <&adc3mux 1>,
<&adc4mux 0>, <&adc4mux 1>,
<&adc5mux 0>, <&adc5mux 1>,
<&adc6mux 0>, <&adc6mux 1>,
<&adc7mux 0>, <&adc7mux 1>,
<&adc8mux 0>, <&adc8mux 1>,
<&adc9mux 0>, <&adc9mux 1>,
<&adc10mux 0>, <&adc10mux 1>,
<&adc11mux 0>, <&adc11mux 1>,
<&adc12mux 0>, <&adc12mux 1>,
<&adc13mux 0>, <&adc13mux 1>,
<&adc14mux 0>, <&adc14mux 1>,
<&adc15mux 0>, <&adc15mux 1>,
<&adc_i2c 0>, <&adc_i2c 1>,
<&adc_i2c 2>, <&adc_i2c 3>,
<&adc_i2c 4>, <&adc_i2c 5>,
<&adc_i2c 6>, <&adc_i2c 7>,
<&adc_i2c 8>, <&adc_i2c 9>,
<&adc_i2c 10>, <&adc_i2c 11>,
<&adc_i2c 12>, <&adc_i2c 13>,
<&adc_i2c 14>, <&adc_i2c 15>;
io-channels = <&adc0mux 0>, <&adc0mux 1>,
<&adc1mux 0>, <&adc1mux 1>,
<&adc2mux 0>, <&adc2mux 1>,
<&adc3mux 0>, <&adc3mux 1>,
<&adc4mux 0>, <&adc4mux 1>,
<&adc5mux 0>, <&adc5mux 1>,
<&adc6mux 0>, <&adc6mux 1>,
<&adc7mux 0>, <&adc7mux 1>,
<&adc8mux 0>, <&adc8mux 1>,
<&adc9mux 0>, <&adc9mux 1>,
<&adc10mux 0>, <&adc10mux 1>,
<&adc11mux 0>, <&adc11mux 1>,
<&adc12mux 0>, <&adc12mux 1>,
<&adc13mux 0>, <&adc13mux 1>,
<&adc14mux 0>, <&adc14mux 1>,
<&adc15mux 0>, <&adc15mux 1>,
<&adc_i2c_1 0>, <&adc_i2c_1 1>,
<&adc_i2c_1 2>, <&adc_i2c_1 3>,
<&adc_i2c_1 4>, <&adc_i2c_1 5>,
<&adc_i2c_1 6>, <&adc_i2c_1 7>,
<&adc_i2c_1 8>, <&adc_i2c_1 9>,
<&adc_i2c_1 10>, <&adc_i2c_1 11>,
<&adc_i2c_1 12>, <&adc_i2c_1 13>,
<&adc_i2c_1 14>, <&adc_i2c_1 15>,
<&adc0 0>, <&adc0 1>,
<&adc0 2>;
};
};
......@@ -354,7 +372,14 @@ &i2c3 {
&i2c4 {
status = "okay";
adc_i2c: adc@16 {
adc_i2c_0: adc@14 {
compatible = "lltc,ltc2497";
reg = <0x14>;
vref-supply = <&voltage_mon_reg>;
#io-channel-cells = <1>;
};
adc_i2c_1: adc@16 {
compatible = "lltc,ltc2497";
reg = <0x16>;
vref-supply = <&voltage_mon_reg>;
......
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