From 09c730a488c32c2cadb31cdb8dcc4df528441197 Mon Sep 17 00:00:00 2001 From: Sundar Iyer Date: Tue, 21 Dec 2010 15:53:31 +0530 Subject: input/tc3589x: add tc3589x keypad support Add support for the keypad controller module found on the TC3589X devices. This driver default adds the support for TC35893 device. Signed-off-by: Sundar Iyer Acked-by: Dmitry Torokhov [Some minor fixups for compilation] Signed-off-by: Linus Walleij --- include/linux/mfd/tc3589x.h | 52 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) (limited to 'include/linux/mfd') diff --git a/include/linux/mfd/tc3589x.h b/include/linux/mfd/tc3589x.h index da00958b12d9..16c76e124f9c 100644 --- a/include/linux/mfd/tc3589x.h +++ b/include/linux/mfd/tc3589x.h @@ -20,6 +20,17 @@ enum tx3589x_block { #define TC3589x_RSTCTRL_KBDRST (1 << 1) #define TC3589x_RSTCTRL_GPIRST (1 << 0) +/* Keyboard Configuration Registers */ +#define TC3589x_KBDSETTLE_REG 0x01 +#define TC3589x_KBDBOUNCE 0x02 +#define TC3589x_KBDSIZE 0x03 +#define TC3589x_KBCFG_LSB 0x04 +#define TC3589x_KBCFG_MSB 0x05 +#define TC3589x_KBDIC 0x08 +#define TC3589x_KBDMSK 0x09 +#define TC3589x_EVTCODE_FIFO 0x10 +#define TC3589x_KBDMFS 0x8F + #define TC3589x_IRQST 0x91 #define TC3589x_MANFCODE_MAGIC 0x03 @@ -35,6 +46,14 @@ enum tx3589x_block { #define TC3589x_EXTRSTN 0x83 #define TC3589x_RSTINTCLR 0x84 +/* Pull up/down configuration registers */ +#define TC3589x_IOCFG 0xA7 +#define TC3589x_IOPULLCFG0_LSB 0xAA +#define TC3589x_IOPULLCFG0_MSB 0xAB +#define TC3589x_IOPULLCFG1_LSB 0xAC +#define TC3589x_IOPULLCFG1_MSB 0xAD +#define TC3589x_IOPULLCFG2_LSB 0xAE + #define TC3589x_GPIOIS0 0xC9 #define TC3589x_GPIOIS1 0xCA #define TC3589x_GPIOIS2 0xCB @@ -112,6 +131,37 @@ extern int tc3589x_block_write(struct tc3589x *tc3589x, u8 reg, u8 length, const u8 *values); extern int tc3589x_set_bits(struct tc3589x *tc3589x, u8 reg, u8 mask, u8 val); +/* + * Keypad related platform specific constants + * These values may be modified for fine tuning + */ +#define TC_KPD_ROWS 0x8 +#define TC_KPD_COLUMNS 0x8 +#define TC_KPD_DEBOUNCE_PERIOD 0xA3 +#define TC_KPD_SETTLE_TIME 0xA3 + +/** + * struct tc35893_platform_data - data structure for platform specific data + * @keymap_data: matrix scan code table for keycodes + * @krow: mask for available rows, value is 0xFF + * @kcol: mask for available columns, value is 0xFF + * @debounce_period: platform specific debounce time + * @settle_time: platform specific settle down time + * @irqtype: type of interrupt, falling or rising edge + * @enable_wakeup: specifies if keypad event can wake up system from sleep + * @no_autorepeat: flag for auto repetition + */ +struct tc3589x_keypad_platform_data { + const struct matrix_keymap_data *keymap_data; + u8 krow; + u8 kcol; + u8 debounce_period; + u8 settle_time; + unsigned long irqtype; + bool enable_wakeup; + bool no_autorepeat; +}; + /** * struct tc3589x_gpio_platform_data - TC3589x GPIO platform data * @gpio_base: first gpio number assigned to TC3589x. A maximum of @@ -130,11 +180,13 @@ struct tc3589x_gpio_platform_data { * @block: bitmask of blocks to enable (use TC3589x_BLOCK_*) * @irq_base: base IRQ number. %TC3589x_NR_IRQS irqs will be used. * @gpio: GPIO-specific platform data + * @keypad: keypad-specific platform data */ struct tc3589x_platform_data { unsigned int block; int irq_base; struct tc3589x_gpio_platform_data *gpio; + const struct tc3589x_keypad_platform_data *keypad; }; #define TC3589x_NR_GPIOS 24 -- cgit v1.2.3