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-rw-r--r--meta/recipes-graphics/xorg-driver/xf86-video-omapfb/0001-Prevents-omapfb-from-from-crashing-when-pixelclock-o.patch35
1 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-graphics/xorg-driver/xf86-video-omapfb/0001-Prevents-omapfb-from-from-crashing-when-pixelclock-o.patch b/meta/recipes-graphics/xorg-driver/xf86-video-omapfb/0001-Prevents-omapfb-from-from-crashing-when-pixelclock-o.patch
new file mode 100644
index 00000000000..c4cf16eb057
--- /dev/null
+++ b/meta/recipes-graphics/xorg-driver/xf86-video-omapfb/0001-Prevents-omapfb-from-from-crashing-when-pixelclock-o.patch
@@ -0,0 +1,35 @@
+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
+