Exynos5420 based Peach PIT and Exynos5800 based PI boards have 4 NTC thermistors to measure temperatures at various points on the board. IIO based ADC becomes the parent and NTC thermistors are the childs, via the HWMON interface. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@xxxxxxxxxxx> Cc: Doug Anderson <dianders@xxxxxxxxxxxx> --- This patch needs 1. MAX77802 PMIC device tree nodes (for ldo9) https://www.mail-archive.com/devicetree@xxxxxxxxxxxxxxx/msg31430.html 2. Uses the DT documentation for NTC thermistors updated with vendor-prefix arch/arm/boot/dts/exynos5420-peach-pit.dts | 32 ++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index b96a66a..852a220 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -751,4 +751,36 @@ timeout-sec = <32>; }; +&adc { + vdd-supply = <&ldo9_reg>; + ncp15wb473@3 { + compatible = "murata,ncp15wb473"; + pullup-uv = <1800000>; + pullup-ohm = <47000>; + pulldown-ohm = <0>; + io-channels = <&adc 3>; + }; + ncp15wb473@4 { + compatible = "murata,ncp15wb473"; + pullup-uv = <1800000>; + pullup-ohm = <47000>; + pulldown-ohm = <0>; + io-channels = <&adc 4>; + }; + ncp15wb473@5 { + compatible = "murata,ncp15wb473"; + pullup-uv = <1800000>; + pullup-ohm = <47000>; + pulldown-ohm = <0>; + io-channels = <&adc 5>; + }; + ncp15wb473@6 { + compatible = "murata,ncp15wb473"; + pullup-uv = <1800000>; + pullup-ohm = <47000>; + pulldown-ohm = <0>; + io-channels = <&adc 6>; + }; +}; + #include "cros-ec-keyboard.dtsi" -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
