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mmc: slot-gpio: add gpiod variant to get wp GPIO

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This makes it possible to get the write protect (read only)
GPIO line from a GPIO descriptor. Written to exactly mirror
the card detect function.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Linus Walleij
2014-08-27 13:00:51 +02:00
committed by Ulf Hansson
parent 9fbc695075
commit 9d2fa2428a
2 changed files with 51 additions and 0 deletions
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3
include/linux/mmc/slot-gpio.h
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@@ -25,6 +25,9 @@ void mmc_gpio_free_cd(struct mmc_host *host);
int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
unsigned int debounce);
int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id,
unsigned int idx, bool override_active_level,
unsigned int debounce);
void mmc_gpiod_free_cd(struct mmc_host *host);
void mmc_gpiod_request_cd_irq(struct mmc_host *host);