Odroid-X, -X2, -XU3 and -XU4 have SOC-ADC routed to an external connector.
Enable the ADC for use as iio-device.
Signed-off-by: Markus Reichl <m.reichl@xxxxxxxxxxxxx>
---
Changes in V2:
move ADC node from exynos4412-odroid-common.dtsi to
exynos4412-odroidx.dts to exclude U3 as pointed to by Marek.
Tested on U3, X, XU3 and XU4.
---
arch/arm/boot/dts/exynos4412-odroidx.dts | 5 +++++
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 11 +++++++++++
2 files changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts
index 61906b3..153a75f 100644
--- a/arch/arm/boot/dts/exynos4412-odroidx.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx.dts
@@ -64,6 +64,11 @@
};
};
+&adc {
+ vdd-supply = <&ldo10_reg>;
+ status = "okay";
+};
+
/* VDDQ for MSHC (eMMC card) */
&buck8_reg {
regulator-name = "BUCK8_VDDQ_MMC4_2.8V";
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 246d298..9e63328 100644
--- a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
@@ -147,6 +147,11 @@
};
};
+&adc {
+ vdd-supply = <&ldo4_reg>;
+ status = "okay";
+};
+
&bus_wcore {
devfreq-events = <&nocp_mem0_0>, <&nocp_mem0_1>,
<&nocp_mem1_0>, <&nocp_mem1_1>;
@@ -293,6 +298,12 @@
regulator-max-microvolt = <1800000>;
};
+ ldo4_reg: LDO4 {
+ regulator-name = "vdd_adc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
ldo5_reg: LDO5 {
regulator-name = "vdd_ldo5";
regulator-min-microvolt = <1800000>;
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
