MMC: OMAP: Add slot_name entry to sysfs

Add slot_name entry to sysfs.

Signed-off-by: Francisco Alecrim <francisco.alecrim@indt.org.br>
Acked-by: Anderson Lizardo <anderson.lizardo@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 5f9a56c..b5931de 100644 (file)
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -174,6 +174,19 @@ static void send_init_stream(struct mmc_omap_host *host)
        enable_irq(host->irq);
 }
 
+static ssize_t
+mmc_omap_show_slot_name(struct device *dev, struct device_attribute *attr,
+                       char *buf)
+{
+       struct mmc_host *mmc = container_of(dev, struct mmc_host, class_dev);
+       struct mmc_omap_host *host = mmc_priv(mmc);
+       struct omap_mmc_slot_data slot = host->pdata->slots[host->slot_id];
+
+       return sprintf(buf, "slot:%s\n", slot.name);
+}
+
+static DEVICE_ATTR(slot_name, S_IRUGO, mmc_omap_show_slot_name, NULL);
+
 /*
  * Configure the response type and send the cmd.
  */
@@ -907,8 +920,16 @@ static int __init omap_mmc_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, host);
        mmc_add_host(mmc);
 
+       if (host->pdata->slots[host->slot_id].name != NULL) {
+               ret = device_create_file(&mmc->class_dev, &dev_attr_slot_name);
+               if (ret < 0)
+                       goto err_slot_name;
+       }
+
        return 0;
 
+err_slot_name:
+       mmc_remove_host(mmc);
 err_irq_cd_init:
        free_irq(mmc_slot(host).card_detect_irq, host);
 err_irq_cd: