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authorEugen Hristev <eugen.hristev@microchip.com>2017-06-15 16:24:54 +0300
committerNicolas Ferre <nicolas.ferre@microchip.com>2017-10-09 15:33:53 +0200
commit84c70b2395c652fa0702f338ca4b7f992531ee00 (patch)
treebc15411868bfc4e4eaf60f772145d322a98bf13c /arch/arm
parent2f61929eb10a0cef383295d28b7933c395f82467 (diff)
downloadlinux-84c70b2395c652fa0702f338ca4b7f992531ee00.tar.bz2
ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
Enable pinctrl for ADTRG pin (PD31) for ADC hardware trigger support. Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/at91-sama5d2_xplained.dts16
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index c7e9ccf2bc87..cbc26001247b 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -309,7 +309,7 @@
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_adc_default>;
+ pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
status = "okay";
};
@@ -340,6 +340,20 @@
bias-disable;
};
+ /*
+ * The ADTRG pin can work on any edge type.
+ * In here it's being pulled up, so need to
+ * connect it to ground to get an edge e.g.
+ * Trigger can be configured on falling, rise
+ * or any edge, and the pull-up can be changed
+ * to pull-down or left floating according to
+ * needs.
+ */
+ pinctrl_adtrg_default: adtrg_default {
+ pinmux = <PIN_PD31__ADTRG>;
+ bias-pull-up;
+ };
+
pinctrl_charger_chglev: charger_chglev {
pinmux = <PIN_PA12__GPIO>;
bias-disable;