This patch creates a thermistor fragment carrying the NTC Thermistor nodes as children of the IIO based ADC. This fragment is included in exynos5420-peach-pit.dts and exynos5800-peach-pi.dts. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@xxxxxxxxxxx> --- Changes since v1: As per the comments https://lkml.org/lkml/2014/6/26/271 and discussion about fragments vs common dtsi @ http://patchwork.ozlabs.org/patch/362633/. Created a thermistors fragment instead of a common dtsi file cat sysfs entries exported by hwmon for 4 thermistors and verified the values on Peach pit and pi boards. arch/arm/boot/dts/cros-adc-thermistors.dtsi | 44 +++++++++++++++++++++++++++ arch/arm/boot/dts/exynos5420-peach-pit.dts | 6 ++++ arch/arm/boot/dts/exynos5800-peach-pi.dts | 6 ++++ 3 files changed, 56 insertions(+) create mode 100644 arch/arm/boot/dts/cros-adc-thermistors.dtsi diff --git a/arch/arm/boot/dts/cros-adc-thermistors.dtsi b/arch/arm/boot/dts/cros-adc-thermistors.dtsi new file mode 100644 index 0000000..17fce72 --- /dev/null +++ b/arch/arm/boot/dts/cros-adc-thermistors.dtsi @@ -0,0 +1,44 @@ +/* + * Thermistor dts fragment for devices that use Thermistors as + * children of the IIO based ADC. + * + * Currently, used by Exynos5420 based Peach PIT and + * Exynos5800 based Peach PI. + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +&adc { + 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>; + }; +}; diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index d124394..7c64009 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -101,6 +101,11 @@ }; }; +&adc { + status = "okay"; + vdd-supply = <&ldo9_reg>; +}; + &dp { status = "okay"; pinctrl-names = "default"; @@ -775,3 +780,4 @@ }; #include "cros-ec-keyboard.dtsi" +#include "cros-adc-thermistors.dtsi" diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts index c36c9ce..4fd48b9 100644 --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts @@ -99,6 +99,11 @@ }; }; +&adc { + status = "okay"; + vdd-supply = <&ldo9_reg>; +}; + &dp { status = "okay"; pinctrl-names = "default"; @@ -773,3 +778,4 @@ }; #include "cros-ec-keyboard.dtsi" +#include "cros-adc-thermistors.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
