From 1c09fa38e0460a1498110fa418ba5900b9aef2c2 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 30 May 2015 16:39:10 +0200 Subject: [PATCH] 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 --- drivers/mmc/sunxi_mmc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) 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; -- 2.39.5