From: Richard Purdie Date: Tue, 6 Sep 2005 22:18:56 +0000 (-0700) Subject: [PATCH] Add write protection switch handling to the PXA MMC driver X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=e619524fe5f5b0c13db34ed0f6320d2dcccf6e8d;p=openwrt%2Fstaging%2Fblogic.git [PATCH] Add write protection switch handling to the PXA MMC driver 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c index b78beb1b0159..e99a53b09e32 100644 --- a/drivers/mmc/pxamci.c +++ b/drivers/mmc/pxamci.c @@ -362,6 +362,16 @@ static void pxamci_request(struct mmc_host *mmc, struct mmc_request *mrq) 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) { 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 = { .request = pxamci_request, + .get_ro = pxamci_get_ro, .set_ios = pxamci_set_ios, }; diff --git a/include/asm-arm/arch-pxa/mmc.h b/include/asm-arm/arch-pxa/mmc.h index 7492ea7ea614..9718063a2119 100644 --- a/include/asm-arm/arch-pxa/mmc.h +++ b/include/asm-arm/arch-pxa/mmc.h @@ -10,6 +10,7 @@ struct mmc_host; struct pxamci_platform_data { unsigned int ocr_mask; /* available voltages */ int (*init)(struct device *, irqreturn_t (*)(int, void *, struct pt_regs *), void *); + int (*get_ro)(struct device *); void (*setpower)(struct device *, unsigned int); void (*exit)(struct device *, void *); };