38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From 28c006c94e57ea71df11ec4fff79d7ffcfc4860f Mon Sep 17 00:00:00 2001
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From: Far McKon <FarMcKon@buglabs.net>
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Date: Tue, 3 May 2011 20:59:04 +0300
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Subject: [PATCH] Prevents omapfb from from crashing when pixelclock of 0 is
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sent to it.
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Due to a Linux design bug it is easy to get a pixelclock set to zero
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when changing displays at runtime.
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Upstream-Status: Pending
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---
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src/omapfb-output.c | 9 +++++++--
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1 file changed, 7 insertions(+), 2 deletions(-)
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diff --git a/src/omapfb-output.c b/src/omapfb-output.c
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index f8b4db3..4d59265 100644
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--- a/src/omapfb-output.c
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+++ b/src/omapfb-output.c
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@@ -125,8 +125,13 @@ OMAPFBOutputGetModes(xf86OutputPtr output)
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/* Only populate the native (current) mode */
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mode = calloc(1, sizeof(DisplayModeRec));
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mode->type |= M_T_PREFERRED;
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- mode->Clock = PICOS2KHZ(ofb->state_info.pixclock);
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- mode->SynthClock = PICOS2KHZ(ofb->state_info.pixclock);
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+ if (ofb->state_info.pixclock == 0) {
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+ mode->Clock = 0;
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+ mode->SynthClock = 0;
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+ } else {
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+ mode->Clock = PICOS2KHZ(ofb->state_info.pixclock);
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+ mode->SynthClock = PICOS2KHZ(ofb->state_info.pixclock);
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+ }
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mode->HDisplay = ofb->state_info.xres;
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mode->HSyncStart = mode->HDisplay
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+ ofb->state_info.right_margin;
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--
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2.1.4
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