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authorAlex Dubov <oakad@yahoo.com>2008-03-10 11:43:38 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-10 18:01:18 -0700
commitd114ad54ffb020dc781b6159c1c2f391c6ec418f (patch)
treefbb4d6c263583bf3ec5de167124fd87cd28c2914 /drivers/memstick/core
parente1f19995f55294fbb00ea22ba85d7b0d80ba3813 (diff)
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/core')
-rw-r--r--drivers/memstick/core/memstick.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index 5e0e960df45..3c97bac4e47 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;