Merge commit 'jk/jk-merge'

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

diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 35508584ac2ae55ffae78479877fe67b32a3a7d2..41cc63360e43d357db2d5d42a06cf55b0abd47b3 100644 (file)
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -1126,16 +1126,28 @@ static int mmc_spi_get_ro(struct mmc_host *mmc)
        struct mmc_spi_host *host = mmc_priv(mmc);
 
        if (host->pdata && host->pdata->get_ro)
-               return host->pdata->get_ro(mmc->parent);
-       /* board doesn't support read only detection; assume writeable */
-       return 0;
+               return !!host->pdata->get_ro(mmc->parent);
+       /*
+        * Board doesn't support read only detection; let the mmc core
+        * decide what to do.
+        */
+       return -ENOSYS;
 }
 
+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,
 };
 
 
@@ -1240,10 +1252,7 @@ static int mmc_spi_probe(struct spi_device *spi)
        mmc->ops = &mmc_spi_ops;
        mmc->max_blk_size = MMC_SPI_BLOCKSIZE;
 
-       /* As long as we keep track of the number of successfully
-        * transmitted blocks, we're good for multiwrite.
-        */
-       mmc->caps = MMC_CAP_SPI | MMC_CAP_MULTIWRITE;
+       mmc->caps = MMC_CAP_SPI;
 
        /* SPI doesn't need the lowspeed device identification thing for
         * MMC or SD cards, since it never comes up in open drain mode.
@@ -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: