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