diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2021-10-14 16:26:09 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-10-19 13:43:21 +0300 |
| commit | 2caa11bc2d29043714cddab1bd5d5841834b008c (patch) | |
| tree | bdd57571e7db8f771a8ea833df46ff37b82db95b /drivers/mmc/host/sdhci.c | |
| parent | 0eab756f8821d255016c63bb55804c429ff4bdb1 (diff) | |
| download | linux-2caa11bc2d29043714cddab1bd5d5841834b008c.tar.xz | |
mmc: sdhci: Deduplicate sdhci_get_cd_nogpio()
The analogue of the sdhci_get_cd_nogpio() is used in the sdhci-pci-core
and sdhci-acpi modules. Deduplicate it by moving to sdhci and exporting.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20211014132613.27861-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index dbe87995596c..269c86569402 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2425,6 +2425,25 @@ static int sdhci_get_cd(struct mmc_host *mmc) return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); } +int sdhci_get_cd_nogpio(struct mmc_host *mmc) +{ + struct sdhci_host *host = mmc_priv(mmc); + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&host->lock, flags); + + if (host->flags & SDHCI_DEVICE_DEAD) + goto out; + + ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT); +out: + spin_unlock_irqrestore(&host->lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(sdhci_get_cd_nogpio); + static int sdhci_check_ro(struct sdhci_host *host) { unsigned long flags; |