ARM: dts: rockchip: add main thermal info to rk3288

If for some reason we are unable to shut it down in orderly fashion
(kernel is stuck holding a lock or similar), then hardware TSHUT will
reset it.

If the temperature is over 95C over a period of time the thermal shutdown
of the tsadc is invoked with can either reset the entire chip via the CRU,
or notify the PMIC via a GPIO. This should be set in the specific board.

Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

1 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index ebcd2d2eef74..acb6a2fba183 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -15,6 +15,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/pinctrl/rockchip.h>
 #include <dt-bindings/clock/rk3288-cru.h>
+#include <dt-bindings/thermal/thermal.h>
 #include "skeleton.dtsi"
 
 / {
@@ -68,6 +69,7 @@
                                  216000  900000
                                  126000  900000
                         >;
+                        #cooling-cells = <2>; /* min followed by max */
                         clock-latency = <40000>;
                         clocks = <&cru ARMCLK>;
                 };
@@ -357,6 +359,25 @@
                 status = "disabled";
         };
 
+        thermal-zones {
+                #include "rk3288-thermal.dtsi"
+        };
+
+        tsadc: tsadc@ff280000 {
+                compatible = "rockchip,rk3288-tsadc";
+                reg = <0xff280000 0x100>;
+                interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+                clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>;
+                clock-names = "tsadc", "apb_pclk";
+                resets = <&cru SRST_TSADC>;
+                reset-names = "tsadc-apb";
+                pinctrl-names = "default";
+                pinctrl-0 = <&otp_out>;
+                #thermal-sensor-cells = <1>;
+                rockchip,hw-tshut-temp = <95000>;
+                status = "disabled";
+        };
+
         usb_host0_ehci: usb@ff500000 {
                 compatible = "generic-ehci";
                 reg = <0xff500000 0x100>;
@@ -1016,6 +1037,12 @@
                         };
                 };
 
+                tsadc {
+                        otp_out: otp-out {
+                                rockchip,pins = <0 10 RK_FUNC_1 &pcfg_pull_none>;
+                        };
+                };
+
                 pwm0 {
                         pwm0_pin: pwm0-pin {
                                 rockchip,pins = <7 0 RK_FUNC_1 &pcfg_pull_none>;