Add board specific hookup for TCA6416 keypad driver.
Signed-off-by: Sriramakrishnan <srk@xxxxxx>
---
arch/arm/mach-omap2/board-am3517evm.c | 47 +++++++++++++++++++++++++++++---
1 files changed, 42 insertions(+), 5 deletions(-)
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index 6ae8805..d50e505 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -20,7 +20,10 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
+#include <linux/input.h>
+#include <linux/tca6416_keypad.h>
#include <mach/hardware.h>
#include <mach/am35xx.h>
@@ -88,16 +91,50 @@ static struct i2c_board_info __initdata am3517evm_tca6416_info_0[] = {
};
/* Mounted on UI Card */
-static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
+/* IO expander at address 0x20 on UI card will be managed by Keypad driver */
+
+static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
.gpio_base = OMAP_MAX_GPIO_LINES + 16,
};
-static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
- .gpio_base = OMAP_MAX_GPIO_LINES + 32,
+
+/*Keypad Initialization */
+#define KEYPAD_PIN_MASK 0xFFC0
+
+#define KEYPAD_BUTTON(ev_type, ev_code, act_low) \
+{ \
+ .type = ev_type, \
+ .code = ev_code, \
+ .active_low = act_low, \
+}
+
+#define KEYPAD_BUTTON_LOW(event_code) \
+ KEYPAD_BUTTON(EV_KEY, event_code, 1)
+
+static struct tca6416_button am3517_gpio_keys[] = {
+ KEYPAD_BUTTON_LOW(KEY_DOWN),
+ KEYPAD_BUTTON_LOW(KEY_UP),
+ KEYPAD_BUTTON_LOW(KEY_MENU),
+ KEYPAD_BUTTON_LOW(KEY_MODE),
+ KEYPAD_BUTTON_LOW(KEY_LEFTSHIFT),
+ KEYPAD_BUTTON_LOW(KEY_REWIND),
+ KEYPAD_BUTTON_LOW(KEY_FORWARD),
+ KEYPAD_BUTTON_LOW(KEY_STOP),
+ KEYPAD_BUTTON_LOW(KEY_PLAY),
+ KEYPAD_BUTTON_LOW(KEY_RECORD),
};
+
+static struct tca6416_keys_platform_data am3517evm_tca6416_keys_info = {
+ .buttons = am3517_gpio_keys,
+ .nbuttons = ARRAY_SIZE(am3517_gpio_keys),
+ .rep = 1,
+ .use_polling = 1,
+ .pinmask = KEYPAD_PIN_MASK,
+};
+
static struct i2c_board_info __initdata am3517evm_ui_tca6416_info[] = {
{
- I2C_BOARD_INFO("tca6416", 0x20),
- .platform_data = &am3517evm_ui_gpio_expander_info_1,
+ I2C_BOARD_INFO("tca6416-keys", 0x20),
+ .platform_data = &am3517evm_tca6416_keys_info,
},
{
I2C_BOARD_INFO("tca6416", 0x21),
--
1.6.2.4
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