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authorAlex Dubov <oakad@yahoo.com>2008-03-10 21:43:38 +0300
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-11 04:01:18 +0300
commitd114ad54ffb020dc781b6159c1c2f391c6ec418f (patch)
treefbb4d6c263583bf3ec5de167124fd87cd28c2914 /drivers/memstick
parente1f19995f55294fbb00ea22ba85d7b0d80ba3813 (diff)
downloadlinux-d114ad54ffb020dc781b6159c1c2f391c6ec418f.tar.xz
memstick: add memstick_suspend/resume_host methods
Bus driver may need to be informed that host is being suspended/resumed. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/memstick')
-rw-r--r--drivers/memstick/core/memstick.c25
-rw-r--r--drivers/memstick/host/tifm_ms.c8
2 files changed, 29 insertions, 4 deletions
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index 5e0e960df456..3c97bac4e47b 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -561,6 +561,31 @@ void memstick_free_host(struct memstick_host *host)
}
EXPORT_SYMBOL(memstick_free_host);
+/**
+ * memstick_suspend_host - notify bus driver of host suspension
+ * @host - host to use
+ */
+void memstick_suspend_host(struct memstick_host *host)
+{
+ mutex_lock(&host->lock);
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);
+ mutex_unlock(&host->lock);
+}
+EXPORT_SYMBOL(memstick_suspend_host);
+
+/**
+ * memstick_resume_host - notify bus driver of host resumption
+ * @host - host to use
+ */
+void memstick_resume_host(struct memstick_host *host)
+{
+ mutex_lock(&host->lock);
+ host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON);
+ mutex_unlock(&host->lock);
+ memstick_detect_change(host);
+}
+EXPORT_SYMBOL(memstick_resume_host);
+
int memstick_register_driver(struct memstick_driver *drv)
{
drv->driver.bus = &memstick_bus_type;
diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
index 5b5bd61b3a4a..8b1c102fc317 100644
--- a/drivers/memstick/host/tifm_ms.c
+++ b/drivers/memstick/host/tifm_ms.c
@@ -627,17 +627,17 @@ static void tifm_ms_remove(struct tifm_dev *sock)
static int tifm_ms_suspend(struct tifm_dev *sock, pm_message_t state)
{
+ struct memstick_host *msh = tifm_get_drvdata(sock);
+
+ memstick_suspend_host(msh);
return 0;
}
static int tifm_ms_resume(struct tifm_dev *sock)
{
struct memstick_host *msh = tifm_get_drvdata(sock);
- struct tifm_ms *host = memstick_priv(msh);
-
- tifm_ms_initialize_host(host);
- memstick_detect_change(msh);
+ memstick_resume_host(msh);
return 0;
}