[PATCH] ARM: dts: imx6sl: add keypad support for i.mx6sl-evk board.

[Anson Huang]

i.MX6SL EVK board has a 3*3 keypad matrix to support 8 keypads,
enable them, the keymap is as below:

SW6:  0x00000067    /* KEY_UP */
SW7:  0x0001006c    /* KEY_DOWN */
SW8:  0x0002001c    /* KEY_ENTER */
SW9:  0x01000066    /* KEY_HOME */
SW10: 0x0101006a    /* KEY_RIGHT */
SW11: 0x01020069    /* KEY_LEFT */
SW12: 0x02000072    /* KEY_VOLUMEDOWN */
SW13: 0x02010073    /* KEY_VOLUMEUP */

Signed-off-by: Anson Huang <b20788 at freescale.com>
---
 arch/arm/boot/dts/imx6sl-evk.dts |   27 +++++++++++++++++++++++++++
 arch/arm/boot/dts/imx6sl.dtsi    |    2 ++
 2 files changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index f5e4513..8d49a10 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -93,6 +93,17 @@
 			fsl,pins = <MX6SL_FEC_PINGRP1>;
 		};
 
+		pinctrl_kpp: kppgrp {
+			fsl,pins = <
+				MX6SL_PAD_KEY_ROW0__KEY_ROW0    0x1b010
+				MX6SL_PAD_KEY_ROW1__KEY_ROW1    0x1b010
+				MX6SL_PAD_KEY_ROW2__KEY_ROW2    0x1b0b0
+				MX6SL_PAD_KEY_COL0__KEY_COL0    0x80000000
+				MX6SL_PAD_KEY_COL1__KEY_COL1    0x80000000
+				MX6SL_PAD_KEY_COL2__KEY_COL2    0x80000000
+			>;
+		};
+
 		pinctrl_uart1: uart1grp {
 			fsl,pins = <MX6SL_UART1_PINGRP1>;
 		};
@@ -139,6 +150,22 @@
 	};
 };
 
+&kpp {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_kpp>;
+	linux,keymap = <
+			0x00000067    /* KEY_UP */
+			0x0001006c    /* KEY_DOWN */
+			0x0002001c    /* KEY_ENTER */
+			0x01000066    /* KEY_HOME */
+			0x0101006a    /* KEY_RIGHT */
+			0x01020069    /* KEY_LEFT */
+			0x02000072    /* KEY_VOLUMEDOWN */
+			0x02010073    /* KEY_VOLUMEUP */
+		>;
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index a5ef3c3..a449c4f 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -393,8 +393,10 @@
 			};
 
 			kpp: kpp at 020b8000 {
+				compatible = "fsl,imx6sl-kpp", "fsl,imx21-kpp";
 				reg = <0x020b8000 0x4000>;
 				interrupts = <0 82 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX6SL_CLK_DUMMY>;
 			};
 
 			wdog1: wdog at 020bc000 {
-- 
1.7.9.5