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| author | William Breathitt Gray <william.gray@linaro.org> | 2022-12-27 15:09:41 +0100 |
|---|---|---|
| committer | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2023-01-30 15:55:28 +0100 |
| commit | e28432a773651b753445b1aec927224664156d79 (patch) | |
| tree | 816761b5844ff25532dd5c7c51da9c9956a0c5e2 /drivers/gpio/Kconfig | |
| parent | gpio: 104-dio-48e: Migrate to the regmap-irq API (diff) | |
| download | linux-e28432a773651b753445b1aec927224664156d79.tar.xz linux-e28432a773651b753445b1aec927224664156d79.zip | |
gpio: 104-idi-48: Migrate to the regmap-irq API
The regmap API supports IO port accessors so we can take advantage of
regmap abstractions rather than handling access to the device registers
directly in the driver.
For the 104-idi-48, we get an IRQ register with some status information
and basic masking, but it's broken down by banks rather than individual
GPIO. There are six banks (8 GPIO lines each) that correspond to the
lower six bits of the IRQ register (bits 0-5):
Base Address + 7 (Read): IRQ Status Register/IRQ Clear
Bit 0-5: Respective Bank IRQ Statuses
Bit 6: IRQ Status (Active Low)
Bit 7: IRQ Enable Status
Base Address + 7 (Write): IRQ Enable/Disable
Bit 0-5: Respective Bank IRQ Enable/Disable
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 2f8cb03bd975..30f9e3f48559 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -872,6 +872,8 @@ config GPIO_104_IDI_48 tristate "ACCES 104-IDI-48 GPIO support" depends on PC104 select ISA_BUS_API + select REGMAP_MMIO + select REGMAP_IRQ select GPIOLIB_IRQCHIP select GPIO_I8255 help |