[PATCH 5/9] arm64: dts: rockchip: add rk3568 tsadc nodes

Peter Geis
2021-07-28T13:56:10Z

Add the thermal and tsadc nodes to the rk3568 device tree.
There are two sensors, one for the cpu, one for the gpu.

Signed-off-by: Peter Geis <pgwipeout@gmail.com>
---
.../boot/dts/rockchip/rk3568-pinctrl.dtsi | 6 ++
arch/arm64/boot/dts/rockchip/rk356x.dtsi | 71 +++++++++++++++++++
2 files changed, 77 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi b/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
index a588ca95ace2..b464c7bda1f7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568-pinctrl.dtsi
@@ -2420,6 +2420,12 @@ spi3m1_cs1: spi3m1-cs1 {
};

tsadc {
+ /omit-if-no-ref/
+ tsadc_gpio: tsadc-gpio {
+ rockchip,pins =
+ <0 RK_PA1 0 &pcfg_pull_none>;
+ };
+
/omit-if-no-ref/
tsadcm0_shut: tsadcm0-shut {
rockchip,pins =
diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index 77c679304916..0905fac0726a 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -51,6 +51,7 @@ cpu0: cpu@0 {
compatible = "arm,cortex-a55";
reg = <0x0 0x0>;
clocks = <&scmi_clk 0>;
+ #cooling-cells = <2>;
enable-method = "psci";
operating-points-v2 = <&cpu0_opp_table>;
};
@@ -59,6 +60,7 @@ cpu1: cpu@100 {
device_type = "cpu";
compatible = "arm,cortex-a55";
reg = <0x0 0x100>;
+ #cooling-cells = <2>;
enable-method = "psci";
operating-points-v2 = <&cpu0_opp_table>;
};
@@ -67,6 +69,7 @@ cpu2: cpu@200 {
device_type = "cpu";
compatible = "arm,cortex-a55";
reg = <0x0 0x200>;
+ #cooling-cells = <2>;
enable-method = "psci";
operating-points-v2 = <&cpu0_opp_table>;
};
@@ -75,6 +78,7 @@ cpu3: cpu@300 {
device_type = "cpu";
compatible = "arm,cortex-a55";
reg = <0x0 0x300>;
+ #cooling-cells = <2>;
enable-method = "psci";
operating-points-v2 = <&cpu0_opp_table>;
};
@@ -774,6 +778,73 @@ uart9: serial@fe6d0000 {
status = "disabled";
};

+ thermal_zones: thermal-zones {
+ cpu_thermal: cpu-thermal {
+ polling-delay-passive = <100>;
+ polling-delay = <1000>;
+
+ thermal-sensors = <&tsadc 0>;
+
+ trips {
+ cpu_alert0: cpu_alert0 {
+ temperature = <70000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ cpu_alert1: cpu_alert1 {
+ temperature = <75000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+ cpu_crit: cpu_crit {
+ temperature = <95000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_alert0>;
+ cooling-device =
+ <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+
+ gpu_thermal: gpu-thermal {
+ polling-delay-passive = <20>; /* milliseconds */
+ polling-delay = <1000>; /* milliseconds */
+
+ thermal-sensors = <&tsadc 1>;
+ };
+ };
+
+ tsadc: tsadc@fe710000 {
+ compatible = "rockchip,rk3568-tsadc";
+ reg = <0x0 0xfe710000 0x0 0x100>;
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ assigned-clocks = <&cru CLK_TSADC_TSEN>, <&cru CLK_TSADC>;
+ assigned-clock-rates = <17000000>, <700000>;
+ clocks = <&cru CLK_TSADC>, <&cru PCLK_TSADC>;
+ clock-names = "tsadc", "apb_pclk";
+ resets = <&cru SRST_TSADC>, <&cru SRST_P_TSADC>,
+ <&cru SRST_TSADCPHY>;
+ reset-names = "tsadc", "tsadc-apb", "tsadc-phy";
+ rockchip,grf = <&grf>;
+ rockchip,hw-tshut-temp = <95000>;
+ rockchip,hw-tshut-mode = <1>; /* tshut mode 0:CRU 1:GPIO */
+ rockchip,hw-tshut-polarity = <0>; /* tshut polarity 0:LOW 1:HIGH */
+ pinctrl-names = "gpio", "otpout";
+ pinctrl-0 = <&tsadc_gpio>;
+ pinctrl-1 = <&tsadc_shutorg>;
+ #thermal-sensor-cells = <1>;
+ status = "disabled";
+ };
+
saradc: saradc@fe720000 {
compatible = "rockchip,rk3568-saradc", "rockchip,rk3399-saradc";
reg = <0x0 0xfe720000 0x0 0x100>;
--
2.25.1