pinctrl: mediatek: mt8189: restore previous register base name array order

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[ Upstream commit fa917d3d57 ]

In mt8189-pinctrl driver, a previous commit changed the register base
name array (mt8189_pinctrl_register_base_names) entry name and order to
align it with the same name and order as the "mediatek,mt8189-pinctrl"
devicetree bindings. The new order (by ascending register address) now
causes an issue with MT8189 pinctrl configuration.

MT8189 SoC has multiple base addresses for the pin configuration
registers. Several constant data structures, declaring each pin
configuration, are using PIN_FIELD_BASE() macro which i_base parameter
indicates for a given pin the lookup index in the base register address
array of the driver internal data for the configuration register
read/write accesses. But in practice, this parameter is given a
hardcoded numerical value that corresponds to the expected base
register entry index in mt8189_pinctrl_register_base_names array.
Since this array reordering, the i_base index matching is no more
correct.

So, in order to avoid modifying over a thousand of PIN_FIELD_BASE()
calls, restore previous mt8189_pinctrl_register_base_names entry order.

Fixes: 518919276c ("pinctrl: mediatek: mt8189: align register base names to dt-bindings ones")
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Louis-Alexis Eyraud 2025-12-03 12:32:42 +01:00 • committed by Greg Kroah-Hartman

parent 5b5482c0e5

commit 7fd534abaa

1 changed files with 1 additions and 1 deletions

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drivers/pinctrl/mediatek/pinctrl-mt8189.c

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