linux-kernel - [PATCH 15/20] omapfb: dispc: Enable wake up capability

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Message-Id: <b11909c54018be72619164782fcf3d6743d0fddd.1245842329.git.imre.deak@nokia.com>
Date:	Wed, 24 Jun 2009 14:33:40 +0300
From:	Imre Deak <imre.deak@...ia.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Krzysztof Helt <krzysztof.h1@...zta.fm>,
	Antonino Daplas <adaplas@...il.com>,
	Tony Lindgren <tony@...mide.com>,
	Tomi Valkeinen <Tomi.Valkeinen@...ia.com>
Subject: [PATCH 15/20] omapfb: dispc: Enable wake up capability

From: Jouni Hogander <jouni.hogander@...ia.com>

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@...ia.com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Imre Deak <imre.deak@...ia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@...pl>
---
 drivers/video/omap/dispc.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c
index cc3c817..9adf54e 100644
--- 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);
 
-- 
1.6.3.2

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