[PATCH 7/8] MXC: mach-mx31_3ds: Add support for the keypad.

[Alberto Panizzo]

The kpp device is not a board private one, so it have to be defined
in devices.c

Signed-off-by: Alberto Panizzo <maramaopercheseimorto at gmail.com>
---
 arch/arm/mach-mx3/devices.c       |   19 +++++++++++++++++++
 arch/arm/mach-mx3/devices.h       |    1 +
 arch/arm/mach-mx3/mach-mx31_3ds.c |   32 ++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index 6adb586..539a08d 100644
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -575,6 +575,25 @@ struct platform_device imx_ssi_device1 = {
 	.resource = imx_ssi_resources1,
 };
 
+static struct resource imx_kpp_resources[] = {
+	{
+		.start	= MX3x_KPP_BASE_ADDR,
+		.end	= MX3x_KPP_BASE_ADDR + 0xf,
+		.flags	= IORESOURCE_MEM
+	}, {
+		.start	= MX3x_INT_KPP,
+		.end	= MX3x_INT_KPP,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device imx_kpp_device = {
+	.name = "imx-keypad",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(imx_kpp_resources),
+	.resource = imx_kpp_resources,
+};
+
 static int mx3_devices_init(void)
 {
 	if (cpu_is_mx31()) {
diff --git a/arch/arm/mach-mx3/devices.h b/arch/arm/mach-mx3/devices.h
index 42cf175..4ca2a18 100644
--- a/arch/arm/mach-mx3/devices.h
+++ b/arch/arm/mach-mx3/devices.h
@@ -25,4 +25,5 @@ extern struct platform_device mxc_spi_device1;
 extern struct platform_device mxc_spi_device2;
 extern struct platform_device imx_ssi_device0;
 extern struct platform_device imx_ssi_device1;
+extern struct platform_device imx_kpp_device;
 
diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index 46ccb6c..258e8d1 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -30,6 +30,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/log2.h>
 #include <linux/err.h>
+#include <linux/input/matrix_keypad.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -109,6 +110,35 @@ static int mx31_3ds_pins[] = {
 	MX31_PIN_HSYNC__HSYNC,
 	MX31_PIN_FPSHIFT__FPSHIFT,
 	MX31_PIN_CONTRAST__CONTRAST,
+	/*Keyboard*/
+	IOMUX_MODE(MX31_PIN_KEY_ROW0, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_ROW1, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_ROW2, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_COL0, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_COL1, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_COL2, IOMUX_CONFIG_FUNC),
+	IOMUX_MODE(MX31_PIN_KEY_COL3, IOMUX_CONFIG_FUNC),
+};
+
+/*
+ * Matrix keyboard
+ */
+
+static const uint32_t mx31_3ds_keymap[] = {
+	KEY(0, 0, KEY_UP),
+	KEY(0, 1, KEY_DOWN),
+	KEY(1, 0, KEY_RIGHT),
+	KEY(1, 1, KEY_LEFT),
+	KEY(1, 2, KEY_ENTER),
+	KEY(2, 0, KEY_F6),
+	KEY(2, 1, KEY_F8),
+	KEY(2, 2, KEY_F9),
+	KEY(2, 3, KEY_F10),
+};
+
+static struct matrix_keymap_data mx31_3ds_keymap_data = {
+	.keymap		= mx31_3ds_keymap,
+	.keymap_size	= ARRAY_SIZE(mx31_3ds_keymap),
 };
 
 /*
@@ -609,6 +639,8 @@ static void __init mxc_board_init(void)
 	mxc_register_device(&mx3_ipu, &mx3_ipu_data);
 	mxc_register_device(&mx3_fb, &mx3fb_pdata);
 
+	mxc_register_device(&imx_kpp_device, &mx31_3ds_keymap_data);
+
 	if (!mx31_3ds_init_expio())
 		platform_device_register(&smsc911x_device);
 }
-- 
1.6.3.3