Merge branch 'stable-3.2' into pandora-3.2

[pandora-kernel.git] / drivers / mmc / core / mmc.c

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index dbf421a..9485825 100644 (file)
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -363,13 +363,13 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd)
                ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT];
        card->ext_csd.raw_trim_mult =
                ext_csd[EXT_CSD_TRIM_MULT];
+       card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
        if (card->ext_csd.rev >= 4) {
                /*
                 * Enhanced area feature support -- check whether the eMMC
                 * card has the Enhanced area enabled.  If so, export enhanced
                 * area offset and size to user by adding sysfs interface.
                 */
-               card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT];
                if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) &&
                    (ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) {
                        hc_erase_grp_sz =
@@ -876,17 +876,21 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
         * set the notification byte in the ext_csd register of device
         */
        if ((host->caps2 & MMC_CAP2_POWEROFF_NOTIFY) &&
-           (card->poweroff_notify_state == MMC_NO_POWER_NOTIFICATION)) {
+           (card->ext_csd.rev >= 6)) {
                err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
                                 EXT_CSD_POWER_OFF_NOTIFICATION,
                                 EXT_CSD_POWER_ON,
                                 card->ext_csd.generic_cmd6_time);
                if (err && err != -EBADMSG)
                        goto free_card;
-       }
 
-       if (!err)
-               card->poweroff_notify_state = MMC_POWERED_ON;
+               /*
+                * The err can be -EBADMSG or 0,
+                * so check for success and update the flag
+                */
+               if (!err)
+                       card->poweroff_notify_state = MMC_POWERED_ON;
+       }
 
        /*
         * Activate high speed (if supported)
@@ -1044,7 +1048,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
                         *
                         * WARNING: eMMC rules are NOT the same as SD DDR
                         */
-                       if (ddr == EXT_CSD_CARD_TYPE_DDR_1_2V) {
+                       if (ddr == MMC_1_2V_DDR_MODE) {
                                err = mmc_set_signal_voltage(host,
                                        MMC_SIGNAL_VOLTAGE_120, 0);
                                if (err)
@@ -1100,6 +1104,14 @@ static void mmc_remove(struct mmc_host *host)
        host->card = NULL;
 }
 
+/*
+ * Card detection - card is alive.
+ */
+static int mmc_alive(struct mmc_host *host)
+{
+       return mmc_send_status(host->card, NULL);
+}
+
 /*
  * Card detection callback from host.
  */
@@ -1115,7 +1127,7 @@ static void mmc_detect(struct mmc_host *host)
        /*
         * Just check if our card has been removed.
         */
-       err = mmc_send_status(host->card, NULL);
+       err = _mmc_detect_card_removed(host);
 
        mmc_release_host(host);
 
@@ -1220,6 +1232,7 @@ static const struct mmc_bus_ops mmc_ops = {
        .suspend = NULL,
        .resume = NULL,
        .power_restore = mmc_power_restore,
+       .alive = mmc_alive,
 };
 
 static const struct mmc_bus_ops mmc_ops_unsafe = {
@@ -1230,6 +1243,7 @@ static const struct mmc_bus_ops mmc_ops_unsafe = {
        .suspend = mmc_suspend,
        .resume = mmc_resume,
        .power_restore = mmc_power_restore,
+       .alive = mmc_alive,
 };
 
 static void mmc_attach_bus_ops(struct mmc_host *host)