mmc_spi: add support for card-detection polling

[linux-2.6-omap-h63xx.git] / drivers / mmc / host / mmc_spi.c

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 35508584ac2ae55ffae78479877fe67b32a3a7d2..547eb857b1b3aac008ca7cb40111bdeead038098 100644 (file)
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1131,11 +1131,20 @@ static int mmc_spi_get_ro(struct mmc_host *mmc)
        return 0;
 }
 
+static int mmc_spi_get_cd(struct mmc_host *mmc)
+{
+       struct mmc_spi_host *host = mmc_priv(mmc);
+
+       if (host->pdata && host->pdata->get_cd)
+               return !!host->pdata->get_cd(mmc->parent);
+       return -ENOSYS;
+}
 
 static const struct mmc_host_ops mmc_spi_ops = {
        .request        = mmc_spi_request,
        .set_ios        = mmc_spi_set_ios,
        .get_ro         = mmc_spi_get_ro,
+       .get_cd         = mmc_spi_get_cd,
 };
 
 
@@ -1319,17 +1328,23 @@ static int mmc_spi_probe(struct spi_device *spi)
                        goto fail_glue_init;
        }
 
+       /* pass platform capabilities, if any */
+       if (host->pdata)
+               mmc->caps |= host->pdata->caps;
+
        status = mmc_add_host(mmc);
        if (status != 0)
                goto fail_add_host;
 
-       dev_info(&spi->dev, "SD/MMC host %s%s%s%s\n",
+       dev_info(&spi->dev, "SD/MMC host %s%s%s%s%s\n",
                        mmc->class_dev.bus_id,
                        host->dma_dev ? "" : ", no DMA",
                        (host->pdata && host->pdata->get_ro)
                                ? "" : ", no WP",
                        (host->pdata && host->pdata->setpower)
-                               ? "" : ", no poweroff");
+                               ? "" : ", no poweroff",
+                       (mmc->caps & MMC_CAP_NEEDS_POLL)
+                               ? ", cd polling" : "");
        return 0;
 
 fail_add_host: