ARM: dts: am335x-icev2: Add Industrial input support

The SN65HVS882 is available on the AM335x-ICEv2 and is attached to SPI0.
Input is attached to the I/O header.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-icev2.dts b/arch/arm/boot/dts/am335x-icev2.dts
index 85e04c2..d46efc6 100644 (file)
--- a/arch/arm/boot/dts/am335x-icev2.dts
+++ b/arch/arm/boot/dts/am335x-icev2.dts
@@ -187,6 +187,8 @@
                        AM33XX_IOPAD(0x954, PIN_INPUT_PULLUP | MUX_MODE0) /* (B17) spi0_d0.spi0_d0 */
                        AM33XX_IOPAD(0x958, PIN_INPUT_PULLUP | MUX_MODE0) /* (B16) spi0_d1.spi0_d1 */
                        AM33XX_IOPAD(0x95c, PIN_INPUT_PULLUP | MUX_MODE0) /* (A16) spi0_cs0.spi0_cs0 */
+                       AM33XX_IOPAD(0x960, PIN_INPUT_PULLUP | MUX_MODE0) /* (C15) spi0_cs1.spi0_cs1 */
+                       AM33XX_IOPAD(0x9a0, PIN_INPUT_PULLUP | MUX_MODE7) /* (B12) mcasp0_aclkr.gpio3[18] */
                >;
        };
 
@@ -224,6 +226,24 @@
        };
 };
 
+&spi0 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi0_pins_default>;
+
+       sn65hvs882@1 {
+               compatible = "pisosr-gpio";
+               gpio-controller;
+               #gpio-cells = <2>;
+
+               load-gpios = <&gpio3 18 GPIO_ACTIVE_LOW>;
+
+               reg = <1>;
+               spi-max-frequency = <1000000>;
+               spi-cpol;
+       };
+};
+
 #include "tps65910.dtsi"
 
 &tps {