arm/dt: msm-pm8226: Add VADC and IADC channel nodes
Add supported VADC channel nodes to read voltage
from the voltage ADC USR peripheral bank. Clients
can read from supported voltage channels such as
battery voltage, vcoin, usb_in, pmic_therm and
reference channels used for calibration. The IADC
USR peripheral is used to update the offset and
provides an interface to read battery current.
Change-Id: Ib1a5e913fed2c2276469f3538b9ce3353b10f834
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
diff --git a/arch/arm/boot/dts/msm-pm8226.dtsi b/arch/arm/boot/dts/msm-pm8226.dtsi
index ce4513b..de23f4c 100644
--- a/arch/arm/boot/dts/msm-pm8226.dtsi
+++ b/arch/arm/boot/dts/msm-pm8226.dtsi
@@ -121,6 +121,73 @@
qcom,pin-num = <8>;
};
};
+
+ pm8226_vadc: vadc@3100 {
+ compatible = "qcom,qpnp-vadc";
+ reg = <0x3100 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0x0 0x31 0x0>;
+ interrupt-names = "eoc-int-en-set";
+ qcom,adc-bit-resolution = <15>;
+ qcom,adc-vdd-reference = <1800>;
+
+ chan@8 {
+ label = "die_temp";
+ reg = <8>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <3>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@9 {
+ label = "ref_625mv";
+ reg = <9>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@a {
+ label = "ref_1250v";
+ reg = <0xa>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+ };
+
+ iadc@3600 {
+ compatible = "qcom,qpnp-iadc";
+ reg = <0x3600 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <0x0 0x36 0x0>;
+ interrupt-names = "eoc-int-en-set";
+ qcom,adc-bit-resolution = <16>;
+ qcom,adc-vdd-reference = <1800>;
+ qcom,rsense = <1500>;
+
+ chan@0 {
+ label = "internal_rsense";
+ reg = <0>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <1>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+ };
};
qcom,pm8226@1 {
diff --git a/arch/arm/boot/dts/msm8226.dtsi b/arch/arm/boot/dts/msm8226.dtsi
index 3ae69fd..dd1b8fe 100644
--- a/arch/arm/boot/dts/msm8226.dtsi
+++ b/arch/arm/boot/dts/msm8226.dtsi
@@ -568,3 +568,93 @@
/include/ "msm-pm8226.dtsi"
/include/ "msm8226-regulator.dtsi"
+
+&pm8226_vadc {
+ chan@0 {
+ label = "usb_in";
+ reg = <0>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <4>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@2 {
+ label = "vchg_sns";
+ reg = <2>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <3>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@5 {
+ label = "vcoin";
+ reg = <5>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <1>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@6 {
+ label = "vbat_sns";
+ reg = <6>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <1>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@7 {
+ label = "vph_pwr";
+ reg = <7>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <1>;
+ qcom,calibration-type = "absolute";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@30 {
+ label = "batt_therm";
+ reg = <0x30>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "ratiometric";
+ qcom,scale-function = <1>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@31 {
+ label = "batt_id";
+ reg = <0x31>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "ratiometric";
+ qcom,scale-function = <0>;
+ qcom,hw-settle-time = <2>;
+ qcom,fast-avg-setup = <0>;
+ };
+
+ chan@b2 {
+ label = "xo_therm_pu2";
+ reg = <0xb2>;
+ qcom,decimation = <0>;
+ qcom,pre-div-channel-scaling = <0>;
+ qcom,calibration-type = "ratiometric";
+ qcom,scale-function = <4>;
+ qcom,hw-settle-time = <0>;
+ qcom,fast-avg-setup = <0>;
+ };
+};