[ARM] tegra: whistler: registering kbc driver

Adding functional keymap for whistler.

Change-Id: I43208d8f901933b368c1c034f56cf0680613312a
Reviewed-on: http://git-master/r/13777
Tested-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

4 files changed, 186 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 15aa48f1eb6c..f8ecbf3fba8e 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -64,3 +64,4 @@ obj-${CONFIG_MACH_WHISTLER}             += board-whistler-pinmux.o
 obj-${CONFIG_MACH_WHISTLER}             += board-whistler-sdhci.o
 obj-${CONFIG_MACH_WHISTLER}             += board-whistler-power.o
 obj-${CONFIG_MACH_WHISTLER}             += board-whistler-panel.o
+obj-${CONFIG_MACH_WHISTLER}             += board-whistler-kbc.o
diff --git a/arch/arm/mach-tegra/board-whistler-kbc.c b/arch/arm/mach-tegra/board-whistler-kbc.c
new file mode 100644
index 000000000000..2d1c5474eddf
--- /dev/null
+++ b/arch/arm/mach-tegra/board-whistler-kbc.c
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2010 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 <mach/clk.h>
+#include <mach/iomap.h>
+#include <mach/irqs.h>
+#include <mach/pinmux.h>
+#include <mach/iomap.h>
+#include <mach/io.h>
+#include <mach/kbc.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+
+static int plain_kbd_keycode[] = {
+	KEY_POWER, KEY_DOWN, KEY_RIGHT, KEY_SELECT,
+		KEY_LEFT, KEY_UP, KEY_RESERVED, KEY_RESERVED,
+	KEY_HOME, KEY_BACK, KEY_NUMERIC_6, KEY_NUMERIC_9,
+		KEY_NUMERIC_8, KEY_NUMERIC_POUND, KEY_DOT, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_3,
+		KEY_NUMERIC_5, KEY_NUMERIC_2, KEY_NUMERIC_7, KEY_RESERVED,
+	KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_4, KEY_RESERVED,
+	KEY_END, KEY_BACK, KEY_RESERVED, KEY_MENU,
+		KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_1, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
+};
+
+static int fn_kbd_keycode[] = {
+	KEY_POWER, KEY_DOWN, KEY_RIGHT, KEY_SELECT,
+		KEY_LEFT, KEY_UP, KEY_RESERVED, KEY_RESERVED,
+	KEY_HOME, KEY_BACK, KEY_NUMERIC_6, KEY_NUMERIC_9,
+		KEY_NUMERIC_8, KEY_NUMERIC_POUND, KEY_DOT, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_3,
+		KEY_NUMERIC_5, KEY_NUMERIC_2, KEY_NUMERIC_7, KEY_RESERVED,
+	KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_4, KEY_RESERVED,
+	KEY_END, KEY_BACK, KEY_RESERVED, KEY_MENU,
+		KEY_RESERVED, KEY_RESERVED, KEY_NUMERIC_1, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+	KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED,
+		KEY_RESERVED, KEY_RESERVED, KEY_RESERVED, KEY_RESERVED
+};
+
+
+
+
+static struct tegra_kbc_wake_key whistler_wake_cfg[] = {
+	[0] = {
+		.row = 0,
+		.col = 0,
+	},
+};
+
+
+static struct tegra_kbc_platform_data whistler_kbc_platform_data = {
+	.debounce_cnt = 20,
+	.repeat_cnt = 50 * 32,
+	.wake_cnt = 1,
+	.wake_cfg = &whistler_wake_cfg[0],
+	.filter_keys  = true,
+};
+
+
+static struct resource whistler_kbc_resources[] = {
+	[0] = {
+		.start = TEGRA_KBC_BASE,
+		.end   = TEGRA_KBC_BASE + TEGRA_KBC_SIZE - 1,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = INT_KBC,
+		.end   = INT_KBC,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+
+struct platform_device whistler_kbc_device = {
+	.name = "tegra-kbc",
+	.id = -1,
+	.dev = {
+		.platform_data = &whistler_kbc_platform_data,
+	},
+	.resource = whistler_kbc_resources,
+	.num_resources = ARRAY_SIZE(whistler_kbc_resources),
+};
+
+int __init whistler_kbc_init(void)
+{
+	struct tegra_kbc_platform_data *data = &whistler_kbc_platform_data;
+	int i, j;
+
+	pr_info("KBC: whistler_kbc_init\n");
+
+	/*
+	 * Setup the pin configuration information.
+	 */
+	for (i = 0; i < KBC_MAX_ROW; i++) {
+		data->pin_cfg[i].num = i;
+		data->pin_cfg[i].is_row = true;
+		data->pin_cfg[i].is_col = false;
+	}
+
+	for (j = 0; j < 7/*KBC_MAX_COL*/; j++) {
+		data->pin_cfg[i + j].num = j;
+		data->pin_cfg[i + j].is_row = false;
+		data->pin_cfg[i + j].is_col = true;
+	}
+
+	/* tegra-kbc will use default keycodes. */
+	data->plain_keycode = plain_kbd_keycode;
+	data->fn_keycode = fn_kbd_keycode;
+	data->filter_keys = true;
+	platform_device_register(&whistler_kbc_device);
+	return 0;
+}
+
+
+
diff --git a/arch/arm/mach-tegra/board-whistler.c b/arch/arm/mach-tegra/board-whistler.c
index 1f45db25f21d..cca9d0611f1f 100644
--- a/arch/arm/mach-tegra/board-whistler.c
+++ b/arch/arm/mach-tegra/board-whistler.c
@@ -80,6 +80,7 @@ static __initdata struct tegra_clk_init_table whistler_clk_init_table[] = {
 	{ "uarta",	"pll_p",	216000000,	true},
 	{ "pll_m",	"clk_m",	600000000,	true},
 	{ "pwm",	"clk_32k",	32768,		false},
+	{ "kbc",	"clk_32k",	32768,		true},
 	{ NULL,		NULL,		0,		0},
 };
 
@@ -207,6 +208,7 @@ static void __init tegra_whistler_init(void)
 	whistler_regulator_init();
 	whistler_panel_init();
 	whistler_touch_init();
+	whistler_kbc_init();
 }
 
 int __init tegra_whistler_protected_aperture_init(void)
diff --git a/arch/arm/mach-tegra/board-whistler.h b/arch/arm/mach-tegra/board-whistler.h
index c6cdbd41bbf2..62b682a8b2a9 100644
--- a/arch/arm/mach-tegra/board-whistler.h
+++ b/arch/arm/mach-tegra/board-whistler.h
@@ -21,5 +21,6 @@ int whistler_regulator_init(void);
 int whistler_sdhci_init(void);
 int whistler_pinmux_init(void);
 int whistler_panel_init(void);
+int whistler_kbc_init(void);
 
 #endif