diff options
| author | Chanwoo Choi <cw00.choi@samsung.com> | 2014-03-18 01:25:59 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-03-18 01:25:59 +0400 |
| commit | 4f423788910c726104cd47f044f520792cc045e4 (patch) | |
| tree | e49e6c86b45fcca93bbb0a14192da0171d775f6c /arch/arm/boot/dts/exynos4412-trats2.dts | |
| parent | 8bdfa203c5827da811ed01dd19ba452135d21bee (diff) | |
| download | linux-4f423788910c726104cd47f044f520792cc045e4.tar.xz | |
ARM: dts: Add ADC and themistor nodes for exynos4412-trats2
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:
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/boot/dts/exynos4412-trats2.dts')
| -rw-r--r-- | arch/arm/boot/dts/exynos4412-trats2.dts | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts b/arch/arm/boot/dts/exynos4412-trats2.dts index 4f851ccf40eb..322850640f43 100644 --- a/arch/arm/boot/dts/exynos4412-trats2.dts +++ b/arch/arm/boot/dts/exynos4412-trats2.dts @@ -106,6 +106,11 @@ }; }; + adc: adc@126C0000 { + vdd-supply = <&ldo3_reg>; + status = "okay"; + }; + i2c@13890000 { samsung,i2c-sda-delay = <100>; samsung,i2c-slave-addr = <0x10>; @@ -589,4 +594,20 @@ }; }; }; + + thermistor-ap@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 */ + }; + + thermistor-battery@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 */ + }; }; |