diff options
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 112584aa0772..a20df9383b20 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2513,8 +2513,9 @@ out: } EXPORT_SYMBOL_GPL(sdhci_get_cd_nogpio); -static int sdhci_check_ro(struct sdhci_host *host) +int sdhci_get_ro(struct mmc_host *mmc) { + struct sdhci_host *host = mmc_priv(mmc); bool allow_invert = false; int is_readonly; @@ -2522,10 +2523,10 @@ static int sdhci_check_ro(struct sdhci_host *host) is_readonly = 0; } else if (host->ops->get_ro) { is_readonly = host->ops->get_ro(host); - } else if (mmc_can_gpio_ro(host->mmc)) { - is_readonly = mmc_gpio_get_ro(host->mmc); + } else if (mmc_can_gpio_ro(mmc)) { + is_readonly = mmc_gpio_get_ro(mmc); /* Do not invert twice */ - allow_invert = !(host->mmc->caps2 & MMC_CAP2_RO_ACTIVE_HIGH); + allow_invert = !(mmc->caps2 & MMC_CAP2_RO_ACTIVE_HIGH); } else { is_readonly = !(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_WRITE_PROTECT); @@ -2539,27 +2540,7 @@ static int sdhci_check_ro(struct sdhci_host *host) return is_readonly; } - -#define SAMPLE_COUNT 5 - -static int sdhci_get_ro(struct mmc_host *mmc) -{ - struct sdhci_host *host = mmc_priv(mmc); - int i, ro_count; - - if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT)) - return sdhci_check_ro(host); - - ro_count = 0; - for (i = 0; i < SAMPLE_COUNT; i++) { - if (sdhci_check_ro(host)) { - if (++ro_count > SAMPLE_COUNT / 2) - return 1; - } - msleep(30); - } - return 0; -} +EXPORT_SYMBOL_GPL(sdhci_get_ro); static void sdhci_hw_reset(struct mmc_host *mmc) { |