From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 30 May 2015 14:39:10 +0000 (+0200)
Subject: sunxi: mmc: Enable pull-up on card-detect gpio pin
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=1c09fa38e0460a1498110fa418ba5900b9aef2c2;p=u-boot.git

sunxi: mmc: Enable pull-up on card-detect gpio pin

On some boards we need to enable the internal pull-up te reliable detect
that no card is inserted.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---

diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index bb0814706c..e7ab828a8f 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -75,8 +75,10 @@ static int mmc_resource_init(int sdc_no)
 	cd_pin = sunxi_mmc_getcd_gpio(sdc_no);
 	if (cd_pin >= 0) {
 		ret = gpio_request(cd_pin, "mmc_cd");
-		if (!ret)
+		if (!ret) {
+			sunxi_gpio_set_pull(cd_pin, SUNXI_GPIO_PULL_UP);
 			ret = gpio_direction_input(cd_pin);
+		}
 	}
 
 	return ret;