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

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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>
This commit is contained in:
Hans de Goede 2015-05-30 16:39:10 +02:00
parent d8abb46b37
commit 1c09fa38e0
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/sunxi_mmc.c
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@ -75,9 +75,11 @@ static int mmc_resource_init(int sdc_no)
cd_pin = sunxi_mmc_getcd_gpio(sdc_no); cd_pin = sunxi_mmc_getcd_gpio(sdc_no);
if (cd_pin >= 0) { if (cd_pin >= 0) {
ret = gpio_request(cd_pin, "mmc_cd"); 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); ret = gpio_direction_input(cd_pin);
} }
}
return ret; return ret;
} }