arm64: dts: pms405: Export PMIC temperature to thermal framework

The PMS405 PMIC has an ADC that exposes the on-die temperature that we
wire up to spmi-temp-alarm thermal driver. This allows the PMIC
temperature to be exposed to Linux through the thermal framework.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/pms405.dtsi b/arch/arm64/boot/dts/qcom/pms405.dtsi
index ad2b62d..1bb836d 100644 (file)
--- a/arch/arm64/boot/dts/qcom/pms405.dtsi
+++ b/arch/arm64/boot/dts/qcom/pms405.dtsi
@@ -3,6 +3,32 @@
 
 #include <dt-bindings/spmi/spmi.h>
 #include <dt-bindings/input/linux-event-codes.h>
+#include <dt-bindings/iio/qcom,spmi-vadc.h>
+#include <dt-bindings/thermal/thermal.h>
+
+/ {
+       thermal-zones {
+               pms405 {
+                       polling-delay-passive = <250>;
+                       polling-delay = <1000>;
+
+                       thermal-sensors = <&pms405_temp>;
+
+                       trips {
+                               pms405_alert0: pms405-alert0 {
+                                       temperature = <105000>;
+                                       hysteresis = <2000>;
+                                       type = "passive";
+                               };
+                               pms405_crit: pms405-crit {
+                                       temperature = <125000>;
+                                       hysteresis = <2000>;
+                                       type = "critical";
+                               };
+                       };
+               };
+       };
+};
 
 &spmi_bus {
        pms405_0: pms405@0 {
@@ -45,6 +71,59 @@
                        };
                };
 
+               pms405_temp: temp-alarm@2400 {
+                       compatible = "qcom,spmi-temp-alarm";
+                       reg = <0x2400>;
+                       interrupts = <0 0x24 0 IRQ_TYPE_EDGE_RISING>;
+                       io-channels = <&pms405_adc ADC5_DIE_TEMP>;
+                       io-channel-names = "thermal";
+                       #thermal-sensor-cells = <0>;
+               };
+
+               pms405_adc: adc@3100 {
+                       compatible = "qcom,pms405-adc", "qcom,spmi-adc-rev2";
+                       reg = <0x3100>;
+                       interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       #io-channel-cells = <1>;
+
+                       ref_gnd {
+                               reg = <ADC5_REF_GND>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+
+                       vref_1p25 {
+                               reg = <ADC5_1P25VREF>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+
+                       vph_pwr {
+                               reg = <ADC5_VPH_PWR>;
+                               qcom,pre-scaling = <1 3>;
+                       };
+
+                       die_temp {
+                               reg = <ADC5_DIE_TEMP>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+
+                       xo_therm_100k_pu {
+                               reg = <ADC5_XO_THERM_100K_PU>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+
+                       amux_thm1_100k_pu {
+                               reg = <ADC5_AMUX_THM1_100K_PU>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+
+                       amux_thm3_100k_pu {
+                               reg = <ADC5_AMUX_THM3_100K_PU>;
+                               qcom,pre-scaling = <1 1>;
+                       };
+               };
+
                rtc@6000 {
                        compatible = "qcom,pm8941-rtc";
                        reg = <0x6000>;