Expose the on-die temperature sensor on the pms405 PMIC through the
spmi-temp-alarm driver.
This series applies on top of the qcs404 DT series by Vinod[1]
[1] https://patchwork.kernel.org/cover/10675575/
Amit Kucheria (2):
dt-bindings: iio: adc: Add binding for ADC on pms405 PMIC
arm64: dts: pms405: Export PMIC temperature to thermal framework
.../bindings/iio/adc/qcom,spmi-vadc.txt | 1 +
arch/arm64/boot/dts/qcom/pms405.dtsi | 79 +++++++++++++++++++
2 files changed, 80 insertions(+)
--
2.17.1
PMS405 contains a variant of the spmi-adc-rev2 ADC. Create a new
compatible inorder to handle any differences.
Signed-off-by: Amit Kucheria <[email protected]>
---
Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
index b3c86f4ac7cd..7ee94496b144 100644
--- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt
@@ -13,6 +13,7 @@ VADC node:
Definition: Should contain "qcom,spmi-vadc".
Should contain "qcom,spmi-adc5" for PMIC5 ADC driver.
Should contain "qcom,spmi-adc-rev2" for PMIC rev2 ADC driver.
+ Should contain "qcom,pms405-adc" for PMS405 PMIC
- reg:
Usage: required
--
2.17.1
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 <[email protected]>
---
arch/arm64/boot/dts/qcom/pms405.dtsi | 79 ++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/pms405.dtsi b/arch/arm64/boot/dts/qcom/pms405.dtsi
index ad2b62dfc9f6..1bb836d1e8aa 100644
--- 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>;
--
2.17.1
On Wed, 12 Dec 2018 15:47:54 +0530, Amit Kucheria wrote:
> PMS405 contains a variant of the spmi-adc-rev2 ADC. Create a new
> compatible inorder to handle any differences.
>
> Signed-off-by: Amit Kucheria <[email protected]>
> ---
> Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.txt | 1 +
> 1 file changed, 1 insertion(+)
>
Reviewed-by: Rob Herring <[email protected]>