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(parent: 386f167) | patch
OMAPDSS: DISPC: fix div by zero issue in overlay scaling
authorTomi Valkeinen <tomi.valkeinen@ti.com>
Fri, 3 Oct 2014 15:14:09 +0000 (15:14 +0000)
committerTomi Valkeinen <tomi.valkeinen@ti.com>
Thu, 26 Feb 2015 10:15:13 +0000 (12:15 +0200)
commit4e1d3ca0836b6b44c358c5ace79aa15a091a4142
treea71c7575f7227d9c9cf01db2cd3f3e54f3fa032btree | snapshot
parent386f167c69ca1c6920581f2cb78be8a1f6691539commit | diff
OMAPDSS: DISPC: fix div by zero issue in overlay scaling

omapdrm doesn't always configure the overlays correctly, causing the
overlay setup functions to be called with zero timings. This leads to
division by zero error.

This happens, for example, when a HDMI cable is not connected, but a
user tries to setup a plane with scaling.

Fixing omapdrm is a big job, so for now let's check for the bad timings
in DISPC and return an error.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
drivers/video/fbdev/omap2/dss/dispc.c diff | blob | history
John Crispins staging tree