omapfb: dispc: enable wake up capability

Without wakeup enable omap doesn't wake up on dispc interrupts.  This
causes problems in a case where mpu is in sleep state and dispc interrupt
fires.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c
index a856949..04b7b8a 100644 (file)
--- a/drivers/video/omap/dispc.c
+++ b/drivers/video/omap/dispc.c
@@ -1395,10 +1395,10 @@ static int omap_dispc_init(struct omapfb_device *fbdev, int ext_mode,
                enable_digit_clocks(0);
        }
 
-       /* Enable smart idle and autoidle */
+       /* Enable smart standby/idle, autoidle and wakeup */
        l = dispc_read_reg(DISPC_SYSCONFIG);
        l &= ~((3 << 12) | (3 << 3));
-       l |= (2 << 12) | (2 << 3) | (1 << 0);
+       l |= (2 << 12) | (2 << 3) | (1 << 2) | (1 << 0);
        dispc_write_reg(DISPC_SYSCONFIG, l);
        omap_writel(1 << 0, DSS_BASE + DSS_SYSCONFIG);