MMC: S3C24XX: Add support to invert write protect line
Support for inverting the sense of the MMC driver's write
protect detection line.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 684a10c..4fd11d8 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1083,11 +1083,18 @@
static int s3cmci_get_ro(struct mmc_host *mmc)
{
struct s3cmci_host *host = mmc_priv(mmc);
+ struct s3c24xx_mci_pdata *pdata = host->pdata;
+ int ret;
- if (host->pdata->gpio_wprotect == 0)
+ if (pdata->gpio_wprotect == 0)
return 0;
- return s3c2410_gpio_getpin(host->pdata->gpio_wprotect);
+ ret = s3c2410_gpio_getpin(pdata->gpio_wprotect);
+
+ if (pdata->wprotect_invert)
+ ret = !ret;
+
+ return ret;
}
static struct mmc_host_ops s3cmci_ops = {