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* [PATCH] [V2] ARM: dts: exynos: Add ADCs on 4412 and 5422 based odroid boards.
@ 2016-11-18  9:55 Markus Reichl
  2016-11-18 12:05 ` Krzysztof Kozlowski
  0 siblings, 1 reply; 2+ messages in thread
From: Markus Reichl @ 2016-11-18  9:55 UTC (permalink / raw)
  To: Marek Szyprowski, Krzysztof Kozlowski, Javier Martinez Canillas,
	Kukjin Kim, Tobias Jakobi, linux-samsung-soc

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@fivetechno.de>
---
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

^ permalink raw reply related	[flat|nested] 2+ messages in thread

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2016-11-18  9:55 [PATCH] [V2] ARM: dts: exynos: Add ADCs on 4412 and 5422 based odroid boards Markus Reichl
2016-11-18 12:05 ` Krzysztof Kozlowski

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