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charset="utf-8" Change to use I2C ADC controller (ltc2497) for Mt.Mitchell DVT and later hardware. Signed-off-by: Chanh Nguyen --- Changes in v3: - None Changes in v2: - None --- .../boot/dts/aspeed-bmc-ampere-mtmitchell.dts | 107 +++++++++++------- 1 file changed, 66 insertions(+), 41 deletions(-) diff --git a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts b/arch/arm/= boot/dts/aspeed-bmc-ampere-mtmitchell.dts index e79f56208b89..d3c7e7c0fd25 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ampere-mtmitchell.dts @@ -65,174 +65,192 @@ =20 adc0mux: adc0mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 0>; + io-channels =3D <&adc_i2c_0 0>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc1mux: adc1mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 1>; + io-channels =3D <&adc_i2c_0 1>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc2mux: adc2mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 2>; + io-channels =3D <&adc_i2c_0 2>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc3mux: adc3mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 3>; + io-channels =3D <&adc_i2c_0 3>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc4mux: adc4mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 4>; + io-channels =3D <&adc_i2c_0 4>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc5mux: adc5mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 5>; + io-channels =3D <&adc_i2c_0 5>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc6mux: adc6mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 6>; + io-channels =3D <&adc_i2c_0 6>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc7mux: adc7mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc0 7>; + io-channels =3D <&adc_i2c_0 7>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc8mux: adc8mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 0>; + io-channels =3D <&adc_i2c_0 8>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc9mux: adc9mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 1>; + io-channels =3D <&adc_i2c_0 9>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc10mux: adc10mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 2>; + io-channels =3D <&adc_i2c_0 10>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc11mux: adc11mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 3>; + io-channels =3D <&adc_i2c_0 11>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc12mux: adc12mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 4>; + io-channels =3D <&adc_i2c_0 12>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc13mux: adc13mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 5>; + io-channels =3D <&adc_i2c_0 13>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc14mux: adc14mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 6>; + io-channels =3D <&adc_i2c_0 14>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 adc15mux: adc15mux { compatible =3D "io-channel-mux"; - io-channels =3D <&adc1 7>; + io-channels =3D <&adc_i2c_0 15>; #io-channel-cells =3D <1>; io-channel-names =3D "parent"; mux-controls =3D <&gpioI5mux>; + settle-time-us =3D <10000>; channels =3D "s0", "s1"; }; =20 iio-hwmon { compatible =3D "iio-hwmon"; - io-channels =3D <&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 =3D <&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>; }; }; =20 @@ -353,7 +371,14 @@ &i2c4 { status =3D "okay"; =20 - adc_i2c: adc@16 { + adc_i2c_0: adc@14 { + compatible =3D "lltc,ltc2497"; + reg =3D <0x14>; + vref-supply =3D <&voltage_mon_reg>; + #io-channel-cells =3D <1>; + }; + + adc_i2c_1: adc@16 { compatible =3D "lltc,ltc2497"; reg =3D <0x16>; vref-supply =3D <&voltage_mon_reg>; --=20 2.17.1