diff options
| author | Vijay Hiremath <vijay.p.hiremath@intel.com> | 2021-08-05 16:45:54 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-09-10 19:07:11 +0000 |
| commit | d398a53a858d6f946e6a35cd06736033bce19094 (patch) | |
| tree | 1a72fd20c6818b774a10dc8619290c1e9392509b /driver/ioexpander/it8801.h | |
| parent | 431323a240bd98bf97012126d136dc2106febbf3 (diff) | |
| download | chrome-ec-d398a53a858d6f946e6a35cd06736033bce19094.tar.gz | |
IOEX: it8801: Enable GPIO based interrupts
Added code to enable GPIO based interrupts on it8801
I/O Expander.
BUG=b:197659347
BRANCH=none
TEST=Tested on ADL-RVP able to get ISR triggered
Change-Id: I7f5f460f48fc21e51bb93bede5a05da89b7dc807
Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3076469
Reviewed-by: Keith Short <keithshort@chromium.org>
Reviewed-by: Dino Li <Dino.Li@ite.com.tw>
Commit-Queue: Keith Short <keithshort@chromium.org>
Diffstat (limited to 'driver/ioexpander/it8801.h')
| -rw-r--r-- | driver/ioexpander/it8801.h | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/driver/ioexpander/it8801.h b/driver/ioexpander/it8801.h index ec38bba6af..5cb713c42b 100644 --- a/driver/ioexpander/it8801.h +++ b/driver/ioexpander/it8801.h @@ -36,13 +36,20 @@ #define IT8801_REG_MASK_GPIOPUE BIT(0) #define IT8801_REG_GPIO23SOV BIT(3) #define IT8801_REG_MASK_SELKSO2 0x02 +#define IT8801_REG_GISR 0xF9 +#define IT8801_REG_MASK_GISR_GKSIIS BIT(6) +#define IT8801_REG_MASK_GISR_GGPIOG2IS BIT(2) +#define IT8801_REG_MASK_GISR_GGPIOG1IS BIT(1) +#define IT8801_REG_MASK_GISR_GGPIOG0IS BIT(0) +#define IT8801_REG_MASK_GISR_GGPIOGXIS (IT8801_REG_MASK_GISR_GGPIOG2IS | \ + IT8801_REG_MASK_GISR_GGPIOG1IS | IT8801_REG_MASK_GISR_GGPIOG0IS) #define IT8801_REG_LBVIDR 0xFE #define IT8801_REG_HBVIDR 0xFF #define IT8801_KSO_COUNT 18 /* General Purpose I/O Port (GPIO) */ #define IT8801_SUPPORT_GPIO_FLAGS (GPIO_OPEN_DRAIN | GPIO_INPUT | \ - GPIO_OUTPUT | GPIO_LOW | GPIO_HIGH) + GPIO_OUTPUT | GPIO_LOW | GPIO_HIGH | GPIO_INT_ANY) #define IT8801_REG_MASK_GPIOAFS_FUNC1 (0x00 << 7) @@ -70,14 +77,9 @@ extern const struct ioexpander_drv it8801_ioexpander_drv; #define IT8801_GPIOAFS_SHIFT 6 /* bit 6~7 */ #define IT8801_GPIODIR BIT(5) /* direction, output=1 */ - -#define IT8801_GPIOIOT_SHIFT 3 /* bit 3~4 */ -#define IT8801_GPIOIOT_MASK 0x3 -#define IT8801_GPIOIOT_INT_LEVEL 0 -#define IT8801_GPIOIOT_INT_RISING 1 -#define IT8801_GPIOIOT_INT_FALLING 2 -#define IT8801_GPIOIOT_INT_EDGE 3 /* = RISING + FALLING */ -#define IT8801_GPIOIOT_OPEN_DRAIN 2 +/* input pin */ +#define IT8801_GPIOIOT_INT_RISING BIT(3) +#define IT8801_GPIOIOT_INT_FALLING BIT(4) #define IT8801_GPIODIR BIT(5) #define IT8801_GPIOIOT BIT(4) |