Merge tag 'at91-ab-4.6-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni...

[cascardo/linux.git] / arch / arm / boot / dts / at91-sama5d2_xplained.dts

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index e683856..5b65ffe 100644 (file)
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -267,7 +267,29 @@
                                };
                        };
 
+                       adc: adc@fc030000 {
+                               vddana-supply = <&vdd_3v3_lp_reg>;
+                               vref-supply = <&vdd_3v3_lp_reg>;
+                               pinctrl-names = "default";
+                               pinctrl-0 = <&pinctrl_adc_default>;
+                               status = "okay";
+                       };
+
                        pinctrl@fc038000 {
+                               /*
+                                * There is no real pinmux for ADC, if the pin
+                                * is not requested by another peripheral then
+                                * the muxing is done when channel is enabled.
+                                * Requesting pins for ADC is GPIO is
+                                * encouraged to prevent conflicts and to
+                                * disable bias in order to be in the same
+                                * state when the pin is not muxed to the adc.
+                                */
+                               pinctrl_adc_default: adc_default {
+                                       pinmux = <PIN_PD23__GPIO>;
+                                       bias-disable;
+                               };
+
                                pinctrl_flx0_default: flx0_default {
                                        pinmux = <PIN_PB28__FLEXCOM0_IO0>,
                                                 <PIN_PB29__FLEXCOM0_IO1>;