pinctrl: mcp23s08: switch to regmap caching

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Instead of using custom caching, this switches to regmap based
caching. Before the conversion the debugfs file used uncached
values, so that it was easily possible to see power-loss related
problems. The new code will check and recover at this place.

The patch will also ensure, that irqs are not cleared by checking
register status in debugfs.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Sebastian Reichel 2017-05-15 11:24:28 +02:00 • committed by Linus Walleij

parent d795cb51df

commit 8f38910ba4

1 changed files with 192 additions and 95 deletions

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drivers/pinctrl/pinctrl-mcp23s08.c

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