Input: ads7846 - use msleep() instead of udelay() in suspend

Sometimes a polling loop had a hard time changing state without
pre-emption enabled.  Use msleep instead, it's better anyway.

Signed-off-by: Juha Yrjola <juha.yrjola@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 8670cd13bd5d6fa373d71d60f0e46288aa5b4618..bdec112e89c4b4c79966fc9d63c70370ef7d7882 100644 (file)
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -449,7 +449,7 @@ ads7846_suspend(struct spi_device *spi, pm_message_t message)
 
                while (ts->pendown || ts->pending) {
                        spin_unlock_irqrestore(&ts->lock, flags);
-                       udelay(10);
+                       msleep(1);
                        spin_lock_irqsave(&ts->lock, flags);
                }
        }