gpio: 104-idio-16: Define maximum valid register address offset

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Attempting to load the 104-idio-16 module fails during regmap
initialization with a return error -EINVAL. This is a result of the
regmap cache failing initialization. Set the idio_16_regmap_config
max_register member to fix this failure.

Fixes: 2c210c9a34 ("gpio: 104-idio-16: Migrate to the regmap API")
Reported-by: Mark Cave-Ayland <[email protected]>
Closes: https://lore.kernel.org/r/[email protected]
Suggested-by: Mark Cave-Ayland <[email protected]>
Cc: [email protected]
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: William Breathitt Gray <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

This commit is contained in:

William Breathitt Gray authored and

Bartosz Golaszewski committed 2025-10-21 11:46:50 +02:00

1 parent 211ddde082

commit c4d35e635f

1 file changed

									
										drivers/gpio/gpio-104-idio-16.c
									
		+1
		
												View File
												
				@@ -59,6 +59,7 @@ static const struct regmap_config idio_16_regmap_config = {

					.reg_stride = 1,

					.val_bits = 8,

					.io_port = true,

					.max_register = 0x5,

					.wr_table = &idio_16_wr_table,

					.rd_table = &idio_16_rd_table,

					.volatile_table = &idio_16_rd_table,