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siihdmi: add comment about vsync_len being too short (HDMI spec)

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Matt Sealey
2011-01-27 10:55:26 -06:00
parent 633174991e
commit e4ab55fc35
1 changed files with 6 additions and 1 deletions
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7
drivers/video/mxc/siihdmi.c
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@@ -636,7 +636,12 @@ static void siihdmi_sanitize_modelist(struct siihdmi_tx * const tx,
mode->xres, mode->yres, mode->refresh);
remove = true;
} else if (mode->vsync_len < 2) {
DEBUG("Removing mode %ux%u@%u (vertical sync period too short)\n",
/*
*HDMI specification requires at least 2 lines of
* vertical sync, as detailed in SII9022 datasheet
* (page 22) and HDMI 1.3 spec (5.1.2)
*/
DEBUG("Removing mode %ux%u@%u (vertical sync period too short)\n",
mode->xres, mode->yres, mode->refresh);
remove = true;
} else {