pinctrl: stm32: Simplify handling of backup pin status

Use C bit-field to keep the backup of the pin status, instead of
explicitly handling the bit-field through shift and mask of a u32
container.

Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Antonio Borneo 2025-10-23 15:26:54 +02:00 • committed by Linus Walleij
commit bbd3fc3412