pinctrl: rockchip: Restrict the RV1103B 2-bit drive type to bank 2

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The RV1103B override in rockchip_get_drive_perpin() forces the 2-bit
level drive type for every pin above 11, but only bank 2 has the
2-bit fields; banks 0 and 1 use the 8-bit level type for all pins,
as the corresponding check in rockchip_set_drive_perpin() shows.

Today this is harmless, since neither level type is decoded in the
get function and both paths fail with -EINVAL. It becomes an active
problem once decoding is added, as the pins of banks 0 and 1 would
be truncated to 2-bit values. Add the missing bank check, matching
the set path.

Fixes: 6d3ea3120e ("pinctrl: rockchip: Add RV1103B pinctrl support")
Link: https://sashiko.dev/#/patchset/20260729132736.3807082-1-sjg@chromium.org?part=1
Assisted-by: Claude:claude-opus-5
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

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Simon Glass 2026-08-03 08:10:24 -06:00 • committed by Linus Walleij

parent 5b695c191c

commit 35ff52e54b

1 changed files with 1 additions and 1 deletions

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drivers/pinctrl/pinctrl-rockchip.c

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