eMMC: Add more debugging messages

Change-Id: I28d670944cbfd55e2b2ad98b727368a8dfdc0944
Change-Id: I2bb65335c2468b257473fe264e705826cfd4474e
Reviewed-on: http://mcrd1-5.corpnet.asus/code-review/master/45300
Reviewed-by: Ban Feng <Ban_Feng@asus.com>
Tested-by: Ban Feng <Ban_Feng@asus.com>
Reviewed-by: Sam hblee <Sam_hblee@asus.com>
(cherry picked from commit 1711f72a9840f3667cf93c774ac16c2d8417375c)

Conflicts:
	drivers/mmc/core/core.c

3 files changed, 22 insertions, 1 deletions

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 5db38cbcea6d..01c0357656a7 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -20,6 +20,8 @@
 #include <linux/mmc/host.h>
 #include "queue.h"
 
+#include "../debug_mmc.h"
+
 #define MMC_QUEUE_BOUNCESZ	65536
 
 #define MMC_QUEUE_SUSPENDED	(1 << 0)
@@ -349,6 +351,7 @@ void mmc_queue_suspend(struct mmc_queue *mq)
 
 	if (!(mq->flags & MMC_QUEUE_SUSPENDED)) {
 		mq->flags |= MMC_QUEUE_SUSPENDED;
+		MMC_printk("%s: blk_stop_queue start", mmc_hostname(mq->card->host));
 
 		spin_lock_irqsave(q->queue_lock, flags);
 		blk_stop_queue(q);
@@ -369,6 +372,7 @@ void mmc_queue_resume(struct mmc_queue *mq)
 
 	if (mq->flags & MMC_QUEUE_SUSPENDED) {
 		mq->flags &= ~MMC_QUEUE_SUSPENDED;
+		MMC_printk("%s: blk_start_queue start", mmc_hostname(mq->card->host));
 
 		up(&mq->thread_sem);
 
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 4b9d1873e0e2..bc200be1b3c0 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1985,8 +1985,10 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
 	mmc_send_if_cond(host, host->ocr_avail);
 
 	/* Order's important: probe SDIO, then SD, then MMC */
-	if (!mmc_attach_sdio(host))
+	if (!mmc_attach_sdio(host)) {
+		MMC_printk("%s: sdio completed", mmc_hostname(host));
 		return 0;
+	}
 	if (!mmc_attach_sd(host))
 		return 0;
 	if (!mmc_attach_mmc(host)) {
@@ -2339,6 +2341,8 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 		notify_block, struct mmc_host, pm_notify);
 	unsigned long flags;
 
+	printk("[mmc]mmc_pm_notify start\n");
+	MMC_printk("%s: mode %ld, bus_resume_flags %d rescan_disable %d", mmc_hostname(host), mode, host->bus_resume_flags, host->rescan_disable);
 
 	switch (mode) {
 	case PM_HIBERNATION_PREPARE:
@@ -2366,6 +2370,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 		mmc_power_off(host);
 		mmc_release_host(host);
 		host->pm_flags = 0;
+		MMC_printk("mode %ld ended", mode);
 		break;
 
 	case PM_POST_SUSPEND:
@@ -2383,6 +2388,8 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 
 	}
 
+	MMC_printk("%s finished", mmc_hostname(host));
+
 	return 0;
 }
 #endif
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 1179f1be4318..6c62a733bf15 100644
--- a/drivers/mmc/host/sdhci-pltfm.c
+++ b/drivers/mmc/host/sdhci-pltfm.c
@@ -35,6 +35,8 @@
 #endif
 #include "sdhci-pltfm.h"
 
+#include "../debug_mmc.h"
+
 static struct sdhci_ops sdhci_pltfm_ops = {
 };
 
@@ -198,6 +200,8 @@ int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state)
 	struct sdhci_host *host = platform_get_drvdata(dev);
 	int ret;
 
+	MMC_printk("%s: ++", mmc_hostname(host->mmc));
+
 	ret = sdhci_suspend_host(host, state);
 	if (ret) {
 		dev_err(&dev->dev, "suspend failed, error = %d\n", ret);
@@ -211,6 +215,8 @@ int sdhci_pltfm_suspend(struct platform_device *dev, pm_message_t state)
 		sdhci_resume_host(host);
 	}
 
+	MMC_printk("%s: --", mmc_hostname(host->mmc));
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(sdhci_pltfm_suspend);
@@ -220,6 +226,8 @@ int sdhci_pltfm_resume(struct platform_device *dev)
 	struct sdhci_host *host = platform_get_drvdata(dev);
 	int ret = 0;
 
+	MMC_printk("%s: ++", mmc_hostname(host->mmc));
+
 	if (host->ops && host->ops->resume)
 		ret = host->ops->resume(host);
 	if (ret) {
@@ -231,6 +239,8 @@ int sdhci_pltfm_resume(struct platform_device *dev)
 	if (ret)
 		dev_err(&dev->dev, "resume failed, error = %d\n", ret);
 
+	MMC_printk("%s: --", mmc_hostname(host->mmc));
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(sdhci_pltfm_resume);