diff options
| author | Anatolij Gustschin <agust@denx.de> | 2013-04-08 23:28:07 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-04-12 15:13:27 -0400 |
| commit | bcf53524ac4532da546cb87099a6e164d5394004 (patch) | |
| tree | 486ae94de2819ecaf38ea139583a16d8772bd171 /drivers/mmc | |
| parent | c7ceab02543f8a03b4df3d4465b089c8117a5e09 (diff) | |
| download | linux-bcf53524ac4532da546cb87099a6e164d5394004.tar.gz | |
mmc: mxcmmc: use slot-gpio API for write-protect detection
slot-gpio API suppors read-only detection when "wp-gpios" property is present in the device tree mmc node. Use this API for write-protect detection. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mxcmmc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c index 3f8d3394197c..df28ebf7e240 100644 --- a/drivers/mmc/host/mxcmmc.c +++ b/drivers/mmc/host/mxcmmc.c @@ -38,6 +38,7 @@ #include <linux/of_device.h> #include <linux/of_dma.h> #include <linux/of_gpio.h> +#include <linux/mmc/slot-gpio.h> #include <asm/dma.h> #include <asm/irq.h> @@ -917,10 +918,11 @@ static int mxcmci_get_ro(struct mmc_host *mmc) if (host->pdata && host->pdata->get_ro) return !!host->pdata->get_ro(mmc_dev(mmc)); /* - * Board doesn't support read only detection; let the mmc core - * decide what to do. + * If board doesn't support read only detection (no mmc_gpio + * context or gpio is invalid), then let the mmc core decide + * what to do. */ - return -ENOSYS; + return mmc_gpio_get_ro(mmc); } static void mxcmci_enable_sdio_irq(struct mmc_host *mmc, int enable) |