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drivers/video/backlight/lms283gf05.c: use GPIOF_INIT flags when using devm_gpio_request_one() 

GPIOF_DIR_OUT and GPIOF_DIR_IN are defined as below:

   GPIOF_DIR_OUT   (0 << 0)
   GPIOF_DIR_IN    (1 << 0)

So, when !pdata->reset_inverted is 1, the gpio pin can be set as
input, instead of output.

To prevent this problem, GPIOF_INIT flag should be used when using
devm_gpio_request_one().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jingoo Han 2012-12-17 16:01:12 -08:00 committed by Linus Torvalds
parent 424e06e3da
commit 1eddd9770f
1 changed files with 2 additions and 1 deletions
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3
drivers/video/backlight/lms283gf05.c
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@ -159,7 +159,8 @@ static int lms283gf05_probe(struct spi_device *spi)
if (pdata != NULL) {
ret = devm_gpio_request_one(&spi->dev, pdata->reset_gpio,
GPIOF_DIR_OUT | !pdata->reset_inverted,
GPIOF_DIR_OUT | (!pdata->reset_inverted ?
GPIOF_INIT_HIGH : GPIOF_INIT_LOW),
"LMS285GF05 RESET");
if (ret)
return ret;