ARM: dts: Add twl keypad map for omap3 EVM

Looks like we're still missing the keypad map for EVM.
Let's add it since we have the binding now available
for the twl4030_keypad as otherwise we get the following
errors during the boot:

twl4030_keypad keypad.31: OF: linux,keymap property not defined
in /ocp/i2c@48070000/twl@48/keypad
twl4030_keypad keypad.31: Failed to build keymap
twl4030_keypad: probe of keypad.31 failed with error -2

Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index c8747c7f1cc8..127f3e7c10c4 100644
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -2,6 +2,7 @@
  * Common support for omap3 EVM boards
  */
 
+#include <dt-bindings/input/input.h>
 #include "omap-gpmc-smsc911x.dtsi"
 
 / {
@@ -111,6 +112,26 @@
         ti,use-leds;
 };
 
+&twl_keypad {
+        linux,keymap = <
+                        MATRIX_KEY(2, 2, KEY_1)
+                        MATRIX_KEY(1, 1, KEY_2)
+                        MATRIX_KEY(0, 0, KEY_3)
+                        MATRIX_KEY(3, 2, KEY_4)
+                        MATRIX_KEY(2, 1, KEY_5)
+                        MATRIX_KEY(1, 0, KEY_6)
+                        MATRIX_KEY(1, 3, KEY_7)
+                        MATRIX_KEY(3, 1, KEY_8)
+                        MATRIX_KEY(2, 0, KEY_9)
+                        MATRIX_KEY(2, 3, KEY_KPASTERISK)
+                        MATRIX_KEY(0, 2, KEY_0)
+                        MATRIX_KEY(3, 0, KEY_KPDOT)
+                        /* s4 not wired */
+                        MATRIX_KEY(1, 2, KEY_BACKSPACE)
+                        MATRIX_KEY(0, 1, KEY_ENTER)
+                        >;
+};
+
 &usb_otg_hs {
         interface-type = <0>;
         usb-phy = <&usb2_phy>;