---

yaml --- r: 372797 b: refs/heads/master c: 0d3e335 h: refs/heads/master i: 372795: 6f7d79f v: v3
git-mirror · Apr 12, 2013 · d39084e · d39084e
1 parent dc88ca7
commit d39084e
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Showing 4 changed files with 6 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f9a94e0a3f18ae4c0245d4a16d0ee20e93fd7bad
+refs/heads/master: 0d3e3350d5871c53464be4c92d57198744247005
diff --git a/trunk/drivers/mmc/core/core.c b/trunk/drivers/mmc/core/core.c
@@ -2416,7 +2416,8 @@ void mmc_start_host(struct mmc_host *host)
 {
 	host->f_init = max(freqs[0], host->f_min);
 	host->rescan_disable = 0;
-	mmc_power_up(host);
+	if (!(host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP))
+		mmc_power_up(host);
 	mmc_detect_change(host, 0);
 }
 

diff --git a/trunk/drivers/mmc/host/sdhci-acpi.c b/trunk/drivers/mmc/host/sdhci-acpi.c
@@ -195,6 +195,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 		host->mmc->pm_caps  |= c->slot->pm_caps;
 	}
 
+	host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
+
 	err = sdhci_add_host(host);
 	if (err)
 		goto err_free;

diff --git a/trunk/include/linux/mmc/host.h b/trunk/include/linux/mmc/host.h
@@ -280,6 +280,7 @@ struct mmc_host {
 #define MMC_CAP2_PACKED_WR	(1 << 13)	/* Allow packed write */
 #define MMC_CAP2_PACKED_CMD	(MMC_CAP2_PACKED_RD | \
 				 MMC_CAP2_PACKED_WR)
+#define MMC_CAP2_NO_PRESCAN_POWERUP (1 << 14)	/* Don't power up before scan */
 
 	mmc_pm_flag_t		pm_caps;	/* supported pm features */