Hi Markus,
On 2016-11-17 16:09, Markus Reichl wrote:
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>
---
Tested on X, XU3 and XU4.
---
arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++
arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 11 +++++++++++
exynos4412-odroid-common.dtsi is also used on Odroid U3, which doesn't have
ADC pins on the external connector, so please move ADC node to
exynos4412-odroidx.dts, which is used on X and X2.
2 files changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
index 8aa19ba..6f26b3d 100644
--- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
+++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi
@@ -478,6 +478,11 @@
};
};
+&adc {
+ vdd-supply = <&ldo10_reg>;
+ status = "okay";
+};
+
&i2c_1 {
status = "okay";
max98090: max98090@10 {
diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi b/arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi
index 246d298..a8e1986 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>;
Best regards
--
Marek Szyprowski, PhD
Samsung R&D Institute Poland
--
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
