arm: tegra: kai: create board files

Create initial board files and config files for Kai.

Reviewed-on: http://git-master/r/74441

Change-Id: I4b07607da85fe4bcb00e5fce2ddbc2a83471b1de
Signed-off-by: Johnny Qiu <joqiu@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/77296
Reviewed-by: Automatic_Commit_Validation_User

1 files changed, 115 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-kai-kbc.c b/arch/arm/mach-tegra/board-kai-kbc.c
new file mode 100644
index 000000000000..704789debf3d
--- /dev/null
+++ b/arch/arm/mach-tegra/board-kai-kbc.c
@@ -0,0 +1,115 @@
+/*
+ * arch/arm/mach-tegra/board-kai-kbc.c
+ * Keys configuration for Nvidia tegra3 kai platform.
+ *
+ * Copyright (C) 2012 NVIDIA, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/interrupt_keys.h>
+#include <linux/gpio_scrollwheel.h>
+
+#include <mach/irqs.h>
+#include <mach/io.h>
+#include <mach/iomap.h>
+#include <mach/kbc.h>
+#include "board.h"
+#include "board-kai.h"
+
+#include "gpio-names.h"
+#include "devices.h"
+
+#define GPIO_KEY(_id, _gpio, _iswake)		\
+	{					\
+		.code = _id,			\
+		.gpio = TEGRA_GPIO_##_gpio,	\
+		.active_low = 1,		\
+		.desc = #_id,			\
+		.type = EV_KEY,			\
+		.wakeup = _iswake,		\
+		.debounce_interval = 10,	\
+	}
+
+static struct gpio_keys_button kai_keys[] = {
+	[0] = GPIO_KEY(KEY_MENU, PR2, 0),
+	[1] = GPIO_KEY(KEY_BACK, PQ1, 0),
+	[2] = GPIO_KEY(KEY_HOME, PQ0, 0),
+	[3] = GPIO_KEY(KEY_SEARCH, PQ3, 0),
+	[4] = GPIO_KEY(KEY_VOLUMEUP, PR1, 0),
+	[5] = GPIO_KEY(KEY_VOLUMEDOWN, PR0, 0),
+};
+
+static struct gpio_keys_platform_data kai_keys_platform_data = {
+	.buttons	= kai_keys,
+	.nbuttons	= ARRAY_SIZE(kai_keys),
+};
+
+static struct platform_device kai_keys_device = {
+	.name   = "gpio-keys",
+	.id     = 0,
+	.dev    = {
+		.platform_data  = &kai_keys_platform_data,
+	},
+};
+
+#define INT_KEY(_id, _irq, _iswake, _deb_int)	\
+	{					\
+		.code = _id,			\
+		.irq = _irq,			\
+		.active_low = 1,		\
+		.desc = #_id,			\
+		.type = EV_KEY,			\
+		.wakeup = _iswake,		\
+		.debounce_interval = _deb_int,	\
+	}
+static struct interrupt_keys_button kai_int_keys[] = {
+};
+
+static struct interrupt_keys_platform_data kai_int_keys_pdata = {
+	.int_buttons	= kai_int_keys,
+	.nbuttons       = ARRAY_SIZE(kai_int_keys),
+};
+
+static struct platform_device kai_int_keys_device = {
+	.name   = "interrupt-keys",
+	.id     = 0,
+	.dev    = {
+		.platform_data  = &kai_int_keys_pdata,
+	},
+};
+
+int __init kai_keys_init(void)
+{
+	int i;
+
+	pr_info("Registering gpio keys\n");
+
+	/* Enable gpio mode for other pins */
+	for (i = 0; i < kai_keys_platform_data.nbuttons; i++)
+		tegra_gpio_enable(kai_keys_platform_data.
+					buttons[i].gpio);
+
+	platform_device_register(&kai_keys_device);
+	platform_device_register(&kai_int_keys_device);
+
+	return 0;
+}