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gpio: TODO: add a task for removing MMIO-specific fields from gpio_chip

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Currently for CONFIG_GPIO_GENERIC=y each struct gpio_chip object
contains the fields relevant only for gpio-mmio users. It's not an
insignificant number either as it's several pointers and integers.

It makes sense to remove these fields from struct gpio_chip into a
dedicated structure but this is not trivial due to how the bgpio_init()
function is implemented.

Add a task for tracking this rework.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250527111353.71540-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Bartosz Golaszewski 2025-05-27 13:13:53 +02:00
parent 114ab5afdf
commit 97a7ea2b8f
1 changed files with 5 additions and 0 deletions
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5
drivers/gpio/TODO
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@ -131,6 +131,11 @@ Work items:
helpers (x86 inb()/outb()) and convert port-mapped I/O drivers to use
this with dry-coding and sending to maintainers to test
- Move the MMIO GPIO specific fields out of struct gpio_chip into a
dedicated structure. Currently every GPIO chip has them if gpio-mmio is
enabled in Kconfig even if it itself doesn't register with the helper
library.
-------------------------------------------------------------------------------
Generic regmap GPIO