leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: dts: Add ADC and themistor nodes for exynos4412-trats2

Browse Source 
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>
This commit is contained in:
Chanwoo Choi 2014-03-18 06:25:59 +09:00 committed by Kukjin Kim
parent 8bdfa203c5
commit 4f42378891
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
arch/arm/boot/dts/exynos4412-trats2.dts
View File

@ -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 */
};
};