diff mbox series

[2/4] arm64: dts: sprd: Add ADC calibration support

Message ID 0213394a8e432e0ee0809f9032427d971ea9cde2.1548052878.git.baolin.wang@linaro.org (mailing list archive)
State New, archived
Headers show
Series Add new device nodes for Spreadtrum SC9860 platform | expand

Commit Message

(Exiting) Baolin Wang Jan. 21, 2019, 7:38 a.m. UTC 
This patch adds phandles to the calibration cells provided by the Efuse
device, which is used to calibrate the ADC channel scales.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
 arch/arm64/boot/dts/sprd/sc2731.dtsi |   10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/sprd/sc2731.dtsi b/arch/arm64/boot/dts/sprd/sc2731.dtsi
index f2f2aa5..a2edc25 100644
--- a/arch/arm64/boot/dts/sprd/sc2731.dtsi
+++ b/arch/arm64/boot/dts/sprd/sc2731.dtsi
@@ -63,6 +63,14 @@ 
 			#address-cells = <1>;
 			#size-cells = <1>;
 			hwlocks = <&hwlock 12>;
+
+			adc_big_scale: calib@24 {
+				reg = <0x24 0x2>;
+			};
+
+			adc_small_scale: calib@26 {
+				reg = <0x26 0x2>;
+			};
 		};
 
 		pmic_adc: adc@480 {
@@ -72,6 +80,8 @@ 
 			interrupts = <0>;
 			#io-channel-cells = <1>;
 			hwlocks = <&hwlock 4>;
+			nvmem-cell-names = "big_scale_calib", "small_scale_calib";
+			nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
 		};
 
 		vibrator@ec8 {