在 2017/8/11 14:38, Caesar Wang 写道:
在 2017年08月04日 16:06, Rocky Hao 写道:
add tsadc needed main information for rk3328 SoC.
50000Hz is the max clock rate supported by tsadc module.
Signed-off-by: Rocky Hao <rocky.hao@xxxxxxxxxxxxxx>
---
Change in v2:
- remove gerrit Change-Id
arch/arm64/boot/dts/rockchip/rk3328.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index db4b2708084d..186fb93fdffd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -308,6 +308,26 @@
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
};
+ tsadc: tsadc@ff250000 {
+ compatible = "rockchip,rk3328-tsadc";
+ reg = <0x0 0xff250000 0x0 0x100>;
+ interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH 0>;
+ rockchip,grf = <&grf>;
+ clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
+ clock-names = "tsadc", "apb_pclk";
+ assigned-clocks = <&cru SCLK_TSADC>;
+ assigned-clock-rates = <50000>;
+ resets = <&cru SRST_TSADC>;
+ reset-names = "tsadc-apb";
+ pinctrl-names = "init", "default", "sleep";
+ pinctrl-0 = <&otp_gpio>;
+ pinctrl-1 = <&otp_out>;
+ pinctrl-2 = <&otp_gpio>;
+ #thermal-sensor-cells = <1>;
Only one sensor, so maybe the value should be 0.
Caesar, #thermal-sensor-cells means parameter counts used to match the
proper sensor registered. Both 0 and 1 work well.
Case 0, i.e. #thermal-sensor-cells = <0>, it uses the default channel
number 0 to match tsadc channal.
Case 1, i.e. #thermal-sensor-cells = <1>, it uses the setting
"thermal-sensors = <&tsadc 0>;" to match tsadc channal.
Case 1 provides more readable info than case 0. By my understanding,
using the default value such as case 0, is not a good coding style.
+ rockchip,hw-tshut-temp = <100000>;
+ status = "disabled";
+ };
+
saradc: adc@ff280000 {
compatible = "rockchip,rk3328-saradc",
"rockchip,rk3399-saradc";
reg = <0x0 0xff280000 0x0 0x100>;
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