arm64: dts: qcom: pm8994: Add VADC node

Add VADC note and some of its channels to allow
for voltage/temperature reading.

Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20201005150313.149754-2-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/arch/arm64/boot/dts/qcom/pm8994.dtsi b/arch/arm64/boot/dts/qcom/pm8994.dtsi
index 7e4f777..ea2a3d5 100644 (file)
--- a/arch/arm64/boot/dts/qcom/pm8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8994.dtsi
@@ -1,7 +1,8 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <dt-bindings/iio/qcom,spmi-vadc.h>
+#include <dt-bindings/input/linux-event-codes.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
-#include <dt-bindings/input/linux-event-codes.h>
 
 &spmi_bus {
 
@@ -35,6 +36,39 @@
 
                };
 
+               pm8994_vadc: adc@3100 {
+                       compatible = "qcom,spmi-vadc";
+                       reg = <0x3100>;
+                       interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       #io-channel-cells = <1>;
+
+                       adc-chan@7 {
+                               reg = <VADC_VSYS>;
+                               qcom,pre-scaling = <1 3>;
+                               label = "vph_pwr";
+                       };
+                       adc-chan@8 {
+                               reg = <VADC_DIE_TEMP>;
+                               label = "die_temp";
+                       };
+                       adc-chan@9 {
+                               reg = <VADC_REF_625MV>;
+                               label = "ref_625mv";
+                       };
+                       adc-chan@a {
+                               reg = <VADC_REF_1250MV>;
+                               label = "ref_1250mv";
+                       };
+                       adc-chan@e {
+                               reg = <VADC_GND_REF>;
+                       };
+                       adc-chan@f {
+                               reg = <VADC_VDD_VADC>;
+                       };
+               };
+
                pm8994_gpios: gpios@c000 {
                        compatible = "qcom,pm8994-gpio";
                        reg = <0xc000>;