On Fri, Apr 30, 2010 at 6:08 AM, Jerome Glisse <jglisse@xxxxxxxxxx> wrote: > From: John Doe <glisse@xxxxxxxxxxxxxxx> > > Compute downscaled mode timing like DDX does on legacy hw. > With this patch it's now possible to use non native laptop > panel resolution. Tested on M7 (7500) laptop. I think I just had the logic reversed previously. Does the attached patch also fix the issue? It should fix the avivo scaling problems that were reported as well. Alex > > Cc: <stable@xxxxxxxxxx> > Signed-off-by: Jerome Glisse <jglisse@xxxxxxxxxx> > --- > drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 23 ++++++++++++++++++++++- > 1 files changed, 22 insertions(+), 1 deletions(-) > > diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c > index 2441cca..0d78f5b 100644 > --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c > +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c > @@ -219,6 +219,8 @@ static bool radeon_legacy_mode_fixup(struct drm_encoder *encoder, > struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); > struct drm_device *dev = encoder->dev; > struct radeon_device *rdev = dev->dev_private; > + unsigned hsync_width, vsync_width; > + unsigned hover, vover, hblank, vblank; > > /* adjust pm to upcoming mode change */ > radeon_pm_compute_clocks(rdev); > @@ -237,8 +239,27 @@ static bool radeon_legacy_mode_fixup(struct drm_encoder *encoder, > adjusted_mode->crtc_hdisplay = mode->hdisplay; > adjusted_mode->crtc_vdisplay = mode->vdisplay; > adjusted_mode->base.id = mode_id; > + hblank = native_mode->htotal - native_mode->hdisplay; > + vblank = native_mode->vtotal - native_mode->vdisplay; > + hover = native_mode->hsync_start - native_mode->hdisplay; > + vover = native_mode->vsync_start - native_mode->vdisplay; > + hsync_width = native_mode->hsync_end - native_mode->hsync_start; > + vsync_width = native_mode->vsync_end - native_mode->vsync_start; > + adjusted_mode->crtc_hsync_start = mode->hdisplay + hover; > + adjusted_mode->crtc_hsync_end = adjusted_mode->crtc_hsync_start + hsync_width; > + adjusted_mode->crtc_htotal = mode->hdisplay + hblank; > + adjusted_mode->crtc_vsync_start = mode->vdisplay + vover; > + adjusted_mode->crtc_vsync_end = adjusted_mode->crtc_vsync_start + vsync_width; > + adjusted_mode->crtc_vtotal = mode->vdisplay + vblank; > + adjusted_mode->crtc_hblank_start = mode->hdisplay; > + adjusted_mode->crtc_vblank_start = mode->vdisplay; > + adjusted_mode->hsync_start = adjusted_mode->crtc_hsync_start; > + adjusted_mode->hsync_end = adjusted_mode->crtc_hsync_end; > + adjusted_mode->htotal = adjusted_mode->crtc_htotal; > + adjusted_mode->vsync_start = adjusted_mode->crtc_vsync_start; > + adjusted_mode->vsync_end = adjusted_mode->crtc_vsync_end; > + adjusted_mode->vtotal = adjusted_mode->crtc_vtotal; > } > - > return true; > } > > -- > 1.7.0.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel >
Attachment:
0001-drm-radeon-kms-fix-reversed-logic-in-panel-scaling.patch
Description: application/mbox
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