diff options
| author |   Michael Hennerich <michael.hennerich@analog.com> | 2010-10-27 15:33:19 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:03:07 -0700 |
| commit | 459773ae8dbbd480886d186181c6bc2e8556025f (patch) | |
| tree | 38d738b858105a46a473bcae0958e2ded77a2e21 /include/linux/i2c | |
| parent | gpio: add support for 74x164 serial-in/parallel-out 8-bit shift register (diff) | |
| download | linux-dev-459773ae8dbbd480886d186181c6bc2e8556025f.tar.xz linux-dev-459773ae8dbbd480886d186181c6bc2e8556025f.zip | |
gpio: adp5588-gpio: support interrupt controller
Implement irq_chip functionality on ADP5588/5587 GPIO expanders. Only
level sensitive interrupts are supported. Interrupts provided by this
irq_chip must be requested using request_threaded_irq().
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/i2c')
| -rw-r--r-- | include/linux/i2c/adp5588.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/i2c/adp5588.h b/include/linux/i2c/adp5588.h index 269181b8f623..531376b77773 100644 --- a/include/linux/i2c/adp5588.h +++ b/include/linux/i2c/adp5588.h @@ -74,6 +74,20 @@ #define ADP5588_DEVICE_ID_MASK 0xF + /* Configuration Register1 */ +#define ADP5588_AUTO_INC (1 << 7) +#define ADP5588_GPIEM_CFG (1 << 6) +#define ADP5588_INT_CFG (1 << 4) +#define ADP5588_GPI_IEN (1 << 1) + +/* Interrupt Status Register */ +#define ADP5588_GPI_INT (1 << 1) +#define ADP5588_KE_INT (1 << 0) + +#define ADP5588_MAXGPIO 18 +#define ADP5588_BANK(offs) ((offs) >> 3) +#define ADP5588_BIT(offs) (1u << ((offs) & 0x7)) + /* Put one of these structures in i2c_board_info platform_data */ #define ADP5588_KEYMAPSIZE 80 @@ -128,6 +142,7 @@ struct adp5588_kpad_platform_data { struct adp5588_gpio_platform_data { unsigned gpio_start; /* GPIO Chip base # */ + unsigned irq_base; /* interrupt base # */ unsigned pullup_dis_mask; /* Pull-Up Disable Mask */ int (*setup)(struct i2c_client *client, int gpio, unsigned ngpio, |