drm: add helper to get crtc timings (v5)
We need to get hdisplay and vdisplay in a few places so create a helper to make our job easier. Note that drm_crtc_check_viewport() and intel_modeset_pipe_config() were previously making adjustments for doublescan modes and vscan > 1 modes, which was incorrect. Using our new helper fixes this mistake. v2 (by Matt): Use new stereo doubling function (suggested by Ville) v3 (by Matt): - Add missing kerneldoc (Daniel) - Use drm_mode_copy() (Jani) v4 (by Matt): - Drop stereo doubling function again; add 'stereo only' flag to drm_mode_set_crtcinfo() instead (Ville) v5 (by Matt): - Note behavioral change in drm_crtc_check_viewport() and intel_modeset_pipe_config(). (Ander) - Describe new adjustment flags in drm_mode_set_crtcinfo()'s kerneldoc. (Ander) Cc: dri-devel@lists.freedesktop.org Suggested-by:Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Acked-by:
Dave Airlie <airlied@gmail.com> Reviewed-by:
Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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