From: Adam Jackson Date: Fri, 28 May 2010 21:17:37 +0000 (-0400) Subject: drm/i915: Honor sync polarity from VBT panel timing descriptors X-Git-Tag: v2.6.35-rc2~56^2~1 X-Git-Url: http://bbs.cooldavid.org/git/?a=commitdiff_plain;h=9bc354998f8aa8a83b0cd430e8fcf2cbc3be7367;p=net-next-2.6.git drm/i915: Honor sync polarity from VBT panel timing descriptors I'm actually kind of shocked that it works at all otherwise. Signed-off-by: Adam Jackson Signed-off-by: Eric Anholt --- diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 4c748d8f73d..96f75d7f663 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -95,6 +95,16 @@ fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode, panel_fixed_mode->clock = dvo_timing->clock * 10; panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; + if (dvo_timing->hsync_positive) + panel_fixed_mode->flags |= DRM_MODE_FLAG_PHSYNC; + else + panel_fixed_mode->flags |= DRM_MODE_FLAG_NHSYNC; + + if (dvo_timing->vsync_positive) + panel_fixed_mode->flags |= DRM_MODE_FLAG_PVSYNC; + else + panel_fixed_mode->flags |= DRM_MODE_FLAG_NVSYNC; + /* Some VBTs have bogus h/vtotal values */ if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;