Merge branch 'next' into for-linus

1 files changed, 34 insertions, 9 deletions

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index f2a05ea40f2..5017f9354ce 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -307,8 +307,8 @@ static int mmc_read_switch(struct mmc_card *card)
 		goto out;
 	}
 
-	if (status[13] & UHS_SDR50_BUS_SPEED)
-		card->sw_caps.hs_max_dtr = 50000000;
+	if (status[13] & SD_MODE_HIGH_SPEED)
+		card->sw_caps.hs_max_dtr = HIGH_SPEED_MAX_DTR;
 
 	if (card->scr.sda_spec3) {
 		card->sw_caps.sd3_bus_mode = status[13];
@@ -451,9 +451,11 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
 	 * information and let the hardware specific code
 	 * return what is possible given the options
 	 */
+	mmc_host_clk_hold(card->host);
 	drive_strength = card->host->ops->select_drive_strength(
 		card->sw_caps.uhs_max_dtr,
 		host_drv_type, card_drv_type);
+	mmc_host_clk_release(card->host);
 
 	err = mmc_sd_switch(card, 1, 2, drive_strength, status);
 	if (err)
@@ -660,8 +662,12 @@ static int mmc_sd_init_uhs_card(struct mmc_card *card)
 		goto out;
 
 	/* SPI mode doesn't define CMD19 */
-	if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning)
-		err = card->host->ops->execute_tuning(card->host);
+	if (!mmc_host_is_spi(card->host) && card->host->ops->execute_tuning) {
+		mmc_host_clk_hold(card->host);
+		err = card->host->ops->execute_tuning(card->host,
+						      MMC_SEND_TUNING_BLOCK);
+		mmc_host_clk_release(card->host);
+	}
 
 out:
 	kfree(status);
@@ -849,8 +855,11 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
 	if (!reinit) {
 		int ro = -1;
 
-		if (host->ops->get_ro)
+		if (host->ops->get_ro) {
+			mmc_host_clk_hold(card->host);
 			ro = host->ops->get_ro(host);
+			mmc_host_clk_release(card->host);
+		}
 
 		if (ro < 0) {
 			pr_warning("%s: host does not "
@@ -960,14 +969,17 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 			goto free_card;
 
 		/* Card is an ultra-high-speed card */
-		mmc_sd_card_set_uhs(card);
+		mmc_card_set_uhs(card);
 
 		/*
 		 * Since initialization is now complete, enable preset
 		 * value registers for UHS-I cards.
 		 */
-		if (host->ops->enable_preset_value)
+		if (host->ops->enable_preset_value) {
+			mmc_host_clk_hold(card->host);
 			host->ops->enable_preset_value(host, true);
+			mmc_host_clk_release(card->host);
+		}
 	} else {
 		/*
 		 * Attempt to change to high-speed (if supported)
@@ -1019,6 +1031,14 @@ static void mmc_sd_remove(struct mmc_host *host)
 }
 
 /*
+ * Card detection - card is alive.
+ */
+static int mmc_sd_alive(struct mmc_host *host)
+{
+	return mmc_send_status(host->card, NULL);
+}
+
+/*
  * Card detection callback from host.
  */
 static void mmc_sd_detect(struct mmc_host *host)
@@ -1033,7 +1053,7 @@ static void mmc_sd_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);
 
@@ -1102,6 +1122,7 @@ static const struct mmc_bus_ops mmc_sd_ops = {
 	.suspend = NULL,
 	.resume = NULL,
 	.power_restore = mmc_sd_power_restore,
+	.alive = mmc_sd_alive,
 };
 
 static const struct mmc_bus_ops mmc_sd_ops_unsafe = {
@@ -1110,6 +1131,7 @@ static const struct mmc_bus_ops mmc_sd_ops_unsafe = {
 	.suspend = mmc_sd_suspend,
 	.resume = mmc_sd_resume,
 	.power_restore = mmc_sd_power_restore,
+	.alive = mmc_sd_alive,
 };
 
 static void mmc_sd_attach_bus_ops(struct mmc_host *host)
@@ -1140,8 +1162,11 @@ int mmc_attach_sd(struct mmc_host *host)
 		return err;
 
 	/* Disable preset value enable if already set since last time */
-	if (host->ops->enable_preset_value)
+	if (host->ops->enable_preset_value) {
+		mmc_host_clk_hold(host);
 		host->ops->enable_preset_value(host, false);
+		mmc_host_clk_release(host);
+	}
 
 	err = mmc_send_app_op_cond(host, 0, &ocr);
 	if (err)