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Commit cf0984c8 authored by Ben Dooks's avatar Ben Dooks Committed by Pierre Ossman
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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 <ben-linux@fluff.org>
Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent edb5a98e

drivers/mmc/host/s3cmci.c

+9 −2
Original line number Diff line number Diff line
@@ -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 = {

include/asm-arm/plat-s3c24xx/mci.h

+2 −0
Original line number Diff line number Diff line
@@ -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;