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ARM: dts: am437x-idk: Add Industrial input support 

The SN65HVS882 is available on the AM437x IDK and is attached to SPI1.
Input is attached to the I/O header.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Andrew F. Davis 2016-10-07 09:44:25 -05:00 committed by Tony Lindgren
parent a59c2238d6
commit a2f8ad5988
1 changed files with 42 additions and 0 deletions
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42
arch/arm/boot/dts/am437x-idk-evm.dts
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@ -178,6 +178,24 @@ AM4372_IOPAD(0x960, PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
spi1_pins_default: spi1_pins_default {
pinctrl-single,pins = <
AM4372_IOPAD(0x908, PIN_INPUT | MUX_MODE2) /* mii1_col.spi1_sclk */
AM4372_IOPAD(0x910, PIN_INPUT | MUX_MODE2) /* mii1_rx_er.spi1_d1 */
AM4372_IOPAD(0x944, PIN_OUTPUT | MUX_MODE2) /* rmii1_ref_clk.spi1_cs0 */
AM4372_IOPAD(0x90c, PIN_OUTPUT | MUX_MODE7) /* mii1_crs.gpio3_1 */
>;
};
spi1_pins_sleep: spi1_pins_sleep {
pinctrl-single,pins = <
AM4372_IOPAD(0x908, PIN_INPUT_PULLDOWN | MUX_MODE7)
AM4372_IOPAD(0x910, PIN_INPUT_PULLDOWN | MUX_MODE7)
AM4372_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE7)
AM4372_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE7)
>;
};
ecap0_pins_default: backlight_pins_default {
pinctrl-single,pins = <
AM4372_IOPAD(0x964, PIN_OUTPUT | MUX_MODE0) /* ecap0_in_pwm0_out.ecap0_in_pwm0_out */
@ -292,6 +310,26 @@ &i2c2 {
clock-frequency = <100000>;
};
&spi1 {
status = "okay";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&spi1_pins_default>;
pinctrl-1 = <&spi1_pins_sleep>;
ti,pindir-d0-out-d1-in;
sn65hvs882: sn65hvs882@0 {
compatible = "pisosr-gpio";
gpio-controller;
#gpio-cells = <2>;
load-gpios = <&gpio3 1 GPIO_ACTIVE_LOW>;
reg = <0>;
spi-max-frequency = <1000000>;
spi-cpol;
};
};
&epwmss0 {
status = "okay";
};
@ -310,6 +348,10 @@ &gpio1 {
status = "okay";
};
&gpio3 {
status = "okay";
};
&gpio4 {
status = "okay";
};