From 7475e44246e8a7c435a7ed8fe1e94fc8898685d9 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Date: Tue, 8 Dec 2009 17:30:24 +0200
Subject: [PATCH] OMAP: DSS2: Fix crash when panel doesn't define enable_te()
DSI driver didn't check if the panel driver actually implements
enable_te().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---
drivers/video/omap2/dss/dsi.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 03f85df70749..e32a53c0889f 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -2932,11 +2932,15 @@ static int dsi_set_update_mode(struct omap_dss_device *dssdev,
static int dsi_set_te(struct omap_dss_device *dssdev, bool enable)
{
- int r;
- r = dssdev->driver->enable_te(dssdev, enable);
- /* XXX for some reason, DSI TE breaks if we don't wait here.
- * Panel bug? Needs more studying */
- msleep(100);
+ int r = 0;
+
+ if (dssdev->driver->enable_te) {
+ r = dssdev->driver->enable_te(dssdev, enable);
+ /* XXX for some reason, DSI TE breaks if we don't wait here.
+ * Panel bug? Needs more studying */
+ msleep(100);
+ }
+
return r;
}