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authorLudovic Desroches <ludovic.desroches@atmel.com>2016-01-14 16:38:16 +0100
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-02-18 03:10:05 +0100
commit5e72c25b40c1e9ed77650f258799514aabd17303 (patch)
treed8229a519ddcdd1bb847949b16b0d69c8aa6f24f /arch/arm/boot/dts/at91-sama5d2_xplained.dts
parentaea14e1496f0f48c96808aa4cfe93c77811c0dea (diff)
ARM: dts: at91: sama5d2 Xplained: enable the adc device
Enable the adc on the sama5d2 Xplained board. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/at91-sama5d2_xplained.dts')
-rw-r--r--arch/arm/boot/dts/at91-sama5d2_xplained.dts22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 77ddff036409..c3102a0a1643 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -261,7 +261,29 @@
};
};
+ 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>;