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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>
This commit is contained in:
Tobias Jakobi 2015-10-05 13:47:53 +02:00 committed by Minkyu Kang
parent 995a54cc12
commit 2308ea7c6f
1 changed files with 11 additions and 9 deletions
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20
drivers/mmc/s5p_sdhci.c
View File

@ -101,29 +101,31 @@ struct sdhci_host sdhci_host[SDHCI_MAX_HOSTS];
static int do_sdhci_init(struct sdhci_host *host) static int do_sdhci_init(struct sdhci_host *host)
{ {
int dev_id, flag; int dev_id, flag, ret;
int err = 0;
flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE; flag = host->bus_width == 8 ? PINMUX_FLAG_8BIT_MODE : PINMUX_FLAG_NONE;
dev_id = host->index + PERIPH_ID_SDMMC0; dev_id = host->index + PERIPH_ID_SDMMC0;
if (dm_gpio_is_valid(&host->pwr_gpio)) { if (dm_gpio_is_valid(&host->pwr_gpio)) {
dm_gpio_set_value(&host->pwr_gpio, 1); dm_gpio_set_value(&host->pwr_gpio, 1);
err = exynos_pinmux_config(dev_id, flag); ret = exynos_pinmux_config(dev_id, flag);
if (err) { if (ret) {
debug("MMC not configured\n"); debug("MMC not configured\n");
return err; return ret;
} }
} }
if (dm_gpio_is_valid(&host->cd_gpio)) { 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; return -ENODEV;
}
err = exynos_pinmux_config(dev_id, flag); ret = exynos_pinmux_config(dev_id, flag);
if (err) { if (ret) {
printf("external SD not configured\n"); printf("external SD not configured\n");
return err; return ret;
} }
} }