gpio: ftgpio: Support optional silicon clock

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The GPIO silicon is clocked with a PCLK (peripheral clock)
on all systems, however not all platforms model it and include
it in e.g. the device tree, so add clock handling but make it
optional so we bail out safely if it is e.g. always on.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Linus Walleij 2018-08-27 22:15:40 +02:00

parent 888263947c

commit da02d79452

1 changed files with 37 additions and 4 deletions

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41

drivers/gpio/gpio-ftgpio010.c

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