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drm/i915: use mode values consistently when converting to sdvo dtd 

The drm_mode->dtd conversion used the crtc timings, whereas the
dtd->drm_mod did not set these. Use the standard mode information, not
the crtc timings, in both cases to make these two functions proper
inverses of each another.

Note that this also kills the risk that we handle interlaced timings
inconsistently because the drm core uses half-frames for crtc timings,
whereas we need full frames. But interlaced support is pretty decently
broken anyway for sdvo encoders, so no big deal.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2012-04-24 18:27:57 +02:00
parent f7bacf195e
commit c6ebd4c015
1 changed files with 8 additions and 8 deletions
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16
drivers/gpu/drm/i915/intel_sdvo.c
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@ -746,18 +746,18 @@ static void intel_sdvo_get_dtd_from_mode(struct intel_sdvo_dtd *dtd,
uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
uint16_t h_sync_offset, v_sync_offset;
width = mode->crtc_hdisplay;
height = mode->crtc_vdisplay;
width = mode->hdisplay;
height = mode->vdisplay;
/* do some mode translations */
h_blank_len = mode->crtc_hblank_end - mode->crtc_hblank_start;
h_sync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
h_blank_len = mode->htotal - mode->hdisplay;
h_sync_len = mode->hsync_end - mode->hsync_start;
v_blank_len = mode->crtc_vblank_end - mode->crtc_vblank_start;
v_sync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
v_blank_len = mode->vtotal - mode->vdisplay;
v_sync_len = mode->vsync_end - mode->vsync_start;
h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
h_sync_offset = mode->hsync_start - mode->hdisplay;
v_sync_offset = mode->vsync_start - mode->vdisplay;
dtd->part1.clock = mode->clock / 10;
dtd->part1.h_active = width & 0xff;