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| author | Hans de Goede <hdegoede@redhat.com> | 2015-04-22 17:03:17 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2015-05-04 16:51:52 +0200 |
| commit | 90641f82f1700553640103bf58017c303be4e604 (patch) | |
| tree | 3bda43e4e97ffc1053d6623eaa6e9f1aa53916be | |
| parent | 8b2db32a9f368672e51e90e46f5cba0dae8cbd52 (diff) | |
| download | u-boot-imx-90641f82f1700553640103bf58017c303be4e604.zip u-boot-imx-90641f82f1700553640103bf58017c303be4e604.tar.gz u-boot-imx-90641f82f1700553640103bf58017c303be4e604.tar.bz2 | |
sunxi: mmc: Fix card-detect gpio handling to work with the driver-model
The driver-model gpio functions may return another value then -1 as error,
make the sunxi mmc code properly handle this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
| -rw-r--r-- | drivers/mmc/sunxi_mmc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c index 1c234e2..c4300f2 100644 --- a/drivers/mmc/sunxi_mmc.c +++ b/drivers/mmc/sunxi_mmc.c @@ -9,6 +9,7 @@ */ #include <common.h> +#include <errno.h> #include <malloc.h> #include <mmc.h> #include <asm/io.h> @@ -37,7 +38,7 @@ static int sunxi_mmc_getcd_gpio(int sdc_no) case 2: return sunxi_name_to_gpio(CONFIG_MMC2_CD_PIN); case 3: return sunxi_name_to_gpio(CONFIG_MMC3_CD_PIN); } - return -1; + return -EINVAL; } static int mmc_resource_init(int sdc_no) @@ -72,7 +73,7 @@ static int mmc_resource_init(int sdc_no) mmchost->mmc_no = sdc_no; cd_pin = sunxi_mmc_getcd_gpio(sdc_no); - if (cd_pin != -1) { + if (cd_pin >= 0) { ret = gpio_request(cd_pin, "mmc_cd"); if (!ret) ret = gpio_direction_input(cd_pin); @@ -424,7 +425,7 @@ static int sunxi_mmc_getcd(struct mmc *mmc) int cd_pin; cd_pin = sunxi_mmc_getcd_gpio(mmchost->mmc_no); - if (cd_pin == -1) + if (cd_pin < 0) return 1; return !gpio_get_value(cd_pin); |