Messages in this thread Patch in this message | | | Date | Fri, 06 Jun 2008 16:51:24 +0100 | From | Ben Dooks <> | Subject | [patch 07/15] MMC: Add support to invert S3C24XX write protect line |
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Support for inverting the sense of the MMC driver's write protect detection line.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Index: linux-2.6.26-rc5-q/drivers/mmc/host/s3cmci.c =================================================================== --- linux-2.6.26-rc5-q.orig/drivers/mmc/host/s3cmci.c 2008-06-06 15:46:04.000000000 +0100 +++ linux-2.6.26-rc5-q/drivers/mmc/host/s3cmci.c 2008-06-06 15:46:30.000000000 +0100 @@ -1082,11 +1082,18 @@ static void s3cmci_reset(struct s3cmci_h 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 = { Index: linux-2.6.26-rc5-q/include/asm-arm/arch-s3c2410/mci.h =================================================================== --- linux-2.6.26-rc5-q.orig/include/asm-arm/arch-s3c2410/mci.h 2008-06-06 15:46:04.000000000 +0100 +++ linux-2.6.26-rc5-q/include/asm-arm/arch-s3c2410/mci.h 2008-06-06 15:46:30.000000000 +0100 @@ -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; -- Ben (ben@fluff.org, http://www.fluff.org/)
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