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    Subject[PATCH 5/5] ARM: dts: exynos4412-trats2: Add ADC's dt data to get temperature of SoC/battery
    Date
    This patch use ADC to get the temperature of SoC/battery by using NTC thermistor
    driver in hwmon. NTC thermistor driver covnvert ADC's raw data to temperature
    by using following variables:

    - pullup-uv : Voltage
    - pullup-ohm : Pull-up resistance
    - pulldown-ohm : Pull-down resistance
    - io-channels : It means ADC channel.

    Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
    ---
    arch/arm/boot/dts/exynos4412-trats2.dts | 21 +++++++++++++++++++++
    1 file changed, 21 insertions(+)

    diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts
    index 4f851cc..fc517c3 100644
    --- a/arch/arm/boot/dts/exynos4412-trats2.dts
    +++ b/arch/arm/boot/dts/exynos4412-trats2.dts
    @@ -106,6 +106,27 @@
    };
    };

    + adc: adc@126C0000 {
    + vdd-supply = <&ldo3_reg>;
    + status = "okay";
    +
    + ncp15wb473@0 {
    + compatible = "ntc,ncp15wb473";
    + pullup-uv = <1800000>; /* VCC_1.8V_AP */
    + pullup-ohm = <100000>; /* 100K */
    + pulldown-ohm = <100000>; /* 100K */
    + io-channels = <&adc 1>; /* AP temperature */
    + };
    +
    + ncp15wb473@1 {
    + compatible = "ntc,ncp15wb473";
    + pullup-uv = <1800000>; /* VCC_1.8V_AP */
    + pullup-ohm = <100000>; /* 100K */
    + pulldown-ohm = <100000>; /* 100K */
    + io-channels = <&adc 2>; /* Battery temperature */
    + };
    + };
    +
    i2c@13890000 {
    samsung,i2c-sda-delay = <100>;
    samsung,i2c-slave-addr = <0x10>;
    --
    1.8.0


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