From 0efaa4ad5c5040db8cfa729145ed64c5ff878e9e Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@csr.com>
Date: Fri, 2 Apr 2010 08:41:47 -0700
Subject: [PATCH 12/30] Don't turn SDIO cards off to save power. Doing so will lose all internal state in the card.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
---
 drivers/mmc/host/omap_hsmmc.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 15a023b..83f93ab 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -29,6 +29,7 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/core.h>
 #include <linux/mmc/mmc.h>
+#include <linux/mmc/card.h>
 #include <linux/io.h>
 #include <linux/semaphore.h>
 #include <linux/gpio.h>
@@ -1760,8 +1761,12 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
 	      mmc_slot(host).card_detect ||
 	      (mmc_slot(host).get_cover_state &&
 	       mmc_slot(host).get_cover_state(host->dev, host->slot_id)))) {
-		mmc_release_host(host->mmc);
-		return 0;
+		goto out;
+	}
+
+	/* Don't turn SDIO cards off. */
+	if (host->mmc->card && mmc_card_sdio(host->mmc->card)) {
+		goto out;
 	}
 
 	mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0);
@@ -1772,9 +1777,8 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
 		host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
 
 	host->dpm_state = OFF;
-
+out:
 	mmc_release_host(host->mmc);
-
 	return 0;
 }
 
-- 
1.6.6.1

