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authorTobias Jakobi <tjakobi@math.uni-bielefeld.de>2015-10-05 13:47:53 +0200
committerMinkyu Kang <mk7.kang@samsung.com>2015-10-13 20:22:28 +0900
commit2308ea7c6fe003f699f4648d4ac3bb030fdc64d0 (patch)
tree7628c5ded6d7c50fc3fd5acfde5cc7c3758b5134 /drivers
parent995a54cc120e2a1e56a79ea9abb0ba9d343c8997 (diff)
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exynos: more debug and cleanup in do_sdhci_init()
Add more debug printfs in do_sdhci_init() for calls that can potentially fail. Acked-by: Przemyslaw Marczak <p.marczak@samsung.com> Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/s5p_sdhci.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c
index b203bee..15ecfee 100644
--- a/drivers/mmc/s5p_sdhci.c
+++ b/drivers/mmc/s5p_sdhci.c
@@ -101,29 +101,31 @@ struct sdhci_host sdhci_host[SDHCI_MAX_HOSTS];
static int do_sdhci_init(struct sdhci_host *host)
{
- int dev_id, flag;
- int err = 0;
+ int dev_id, flag, ret;
flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE;
dev_id = host->index + PERIPH_ID_SDMMC0;
if (dm_gpio_is_valid(&host->pwr_gpio)) {
dm_gpio_set_value(&host->pwr_gpio, 1);
- err = exynos_pinmux_config(dev_id, flag);
- if (err) {
+ ret = exynos_pinmux_config(dev_id, flag);
+ if (ret) {
debug("MMC not configured\n");
- return err;
+ return ret;
}
}
if (dm_gpio_is_valid(&host->cd_gpio)) {
- if (dm_gpio_get_value(&host->cd_gpio))
+ ret = dm_gpio_get_value(&host->cd_gpio);
+ if (ret) {
+ debug("no SD card detected (%d)\n", ret);
return -ENODEV;
+ }
- err = exynos_pinmux_config(dev_id, flag);
- if (err) {
+ ret = exynos_pinmux_config(dev_id, flag);
+ if (ret) {
printf("external SD not configured\n");
- return err;
+ return ret;
}
}