sh-pfc: Clean up pin configuration type handling

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Set pin configuration type to

- PINMUX_TYPE_NONE at initialization time and when disabling a function
  or freeing a GPIO

- PINMUX_TYPE_FUNCTION when enabling a function

- PINMUX_TYPE_INPUT or PINMUX_TYPE_OUTPUT when setting the GPIO
  direction

Verify that the type is PINMUX_TYPE_NONE when enabling a function or
requesting a GPIO and return -EBUSY if it isn't.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Laurent Pinchart 2013-03-10 17:25:29 +01:00

parent 0d00f00a10

commit 9fddc4a589

1 changed files with 46 additions and 28 deletions

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74

drivers/pinctrl/sh-pfc/pinctrl.c

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