[PATCH v5 1/4] ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
From: jic23@kernel.org (Jonathan Cameron)
Date: 2017-06-20 16:56:05
Also in:
linux-devicetree, linux-iio, lkml
On Thu, 15 Jun 2017 16:24:54 +0300 Eugen Hristev [off-list ref] wrote:
Enable pinctrl for ADTRG pin (PD31) for ADC hardware trigger support. Signed-off-by: Eugen Hristev <redacted> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
The driver changes are on their way upstream. Acked-by: Jonathan Cameron <jic23@kernel.org>
quoted hunk ↗ jump to hunk
--- arch/arm/boot/dts/at91-sama5d2_xplained.dts | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-)diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts index 0bef9e0..04754b1 100644 --- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts +++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts@@ -303,7 +303,7 @@ 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"; };@@ -322,6 +322,20 @@ 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;