1 files changed, 19 insertions, 8 deletions

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 7699f0aeb58..30b863b2c51 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -143,6 +143,7 @@ struct mmc_omap_host {
         unsigned int            dma_len;
         unsigned int            dma_sg_idx;
         unsigned char           bus_mode;
+        unsigned char           power_mode;
         u32                     *buffer;
         u32                     bytesleft;
         int                     suspended;
@@ -863,16 +864,25 @@ static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         unsigned long regval;
         unsigned long timeout;
         u32 con;
+        int do_send_init_stream = 0;
 
         mmc_host_enable(host->mmc);
 
-        switch (ios->power_mode) {
-        case MMC_POWER_OFF:
-                mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
-                break;
-        case MMC_POWER_UP:
-                mmc_slot(host).set_power(host->dev, host->slot_id, 1, ios->vdd);
-                break;
+        if (ios->power_mode != host->power_mode) {
+                switch (ios->power_mode) {
+                case MMC_POWER_OFF:
+                        mmc_slot(host).set_power(host->dev, host->slot_id,
+                                                 0, 0);
+                        break;
+                case MMC_POWER_UP:
+                        mmc_slot(host).set_power(host->dev, host->slot_id,
+                                                 1, ios->vdd);
+                        break;
+                case MMC_POWER_ON:
+                        do_send_init_stream = 1;
+                        break;
+                }
+                host->power_mode = ios->power_mode;
         }
 
         con = OMAP_HSMMC_READ(host->base, CON);
@@ -938,7 +948,7 @@ static void omap_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         OMAP_HSMMC_WRITE(host->base, SYSCTL,
                 OMAP_HSMMC_READ(host->base, SYSCTL) | CEN);
 
-        if (ios->power_mode == MMC_POWER_ON)
+        if (do_send_init_stream)
                 send_init_stream(host);
 
         if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN)
@@ -1116,6 +1126,7 @@ static int __init omap_mmc_probe(struct platform_device *pdev)
         host->slot_id   = 0;
         host->mapbase   = res->start;
         host->base      = ioremap(host->mapbase, SZ_4K);
+        host->power_mode = -1;
 
         platform_set_drvdata(pdev, host);
         INIT_WORK(&host->mmc_carddetect_work, mmc_omap_detect);