mmc: slot-gpio: Add debouncing capability to mmc_gpio_request_cd()

Add a debounce parameter to the mmc_gpio_request_cd() function that
enables GPIO debouncing when set to a non-zero value. This can be used
by MMC host drivers to enable debouncing on the card detect signal.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 4ddd83f98658..06c5b0b28ebc 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -757,7 +757,8 @@ static int __init mvsd_probe(struct platform_device *pdev)
                 if (mvsd_data->gpio_card_detect &&
                     gpio_is_valid(mvsd_data->gpio_card_detect)) {
                         ret = mmc_gpio_request_cd(mmc,
-                                                  mvsd_data->gpio_card_detect);
+                                                  mvsd_data->gpio_card_detect,
+                                                  0);
                         if (ret)
                                 goto out;
                 } else {