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[PATCH] Add write protection switch handling to the PXA MMC driver

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Add a write protection switch handling code to the PXA MMC driver so
that platform specific code can provide it if available.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Richard Purdie 2005-09-06 15:18:56 -07:00 committed by Linus Torvalds
parent 5b4fd9aef7
commit e619524fe5
2 changed files with 12 additions and 0 deletions
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11
drivers/mmc/pxamci.c
View File

@ -362,6 +362,16 @@ static void pxamci_request(struct mmc_host *mmc, struct mmc_request *mrq)
pxamci_start_cmd(host, mrq->cmd, cmdat); pxamci_start_cmd(host, mrq->cmd, cmdat);
} }
static int pxamci_get_ro(struct mmc_host *mmc)
{
struct pxamci_host *host = mmc_priv(mmc);
if (host->pdata && host->pdata->get_ro)
return host->pdata->get_ro(mmc->dev);
/* Host doesn't support read only detection so assume writeable */
return 0;
}
static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{ {
struct pxamci_host *host = mmc_priv(mmc); struct pxamci_host *host = mmc_priv(mmc);
@ -401,6 +411,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
static struct mmc_host_ops pxamci_ops = { static struct mmc_host_ops pxamci_ops = {
.request = pxamci_request, .request = pxamci_request,
.get_ro = pxamci_get_ro,
.set_ios = pxamci_set_ios, .set_ios = pxamci_set_ios,
}; };

1
include/asm-arm/arch-pxa/mmc.h
View File

@ -10,6 +10,7 @@ struct mmc_host;
struct pxamci_platform_data { struct pxamci_platform_data {
unsigned int ocr_mask; /* available voltages */ unsigned int ocr_mask; /* available voltages */
int (*init)(struct device *, irqreturn_t (*)(int, void *, struct pt_regs *), void *); int (*init)(struct device *, irqreturn_t (*)(int, void *, struct pt_regs *), void *);
int (*get_ro)(struct device *);
void (*setpower)(struct device *, unsigned int); void (*setpower)(struct device *, unsigned int);
void (*exit)(struct device *, void *); void (*exit)(struct device *, void *);
}; };