Commit cf0984c8 authored by Ben Dooks's avatar Ben Dooks Committed by Pierre Ossman

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: default avatarBen Dooks <>
Signed-off-by: default avatarPierre Ossman <>
parent edb5a98e
......@@ -1083,11 +1083,18 @@ static void s3cmci_reset(struct s3cmci_host *host)
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 = {
......@@ -2,6 +2,8 @@
#define _ARCH_MCI_H
struct s3c24xx_mci_pdata {
unsigned int wprotect_invert : 1;
unsigned int gpio_detect;
unsigned int gpio_wprotect;
unsigned long ocr_avail;
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