drm/i915: Move number of scalers initialization to runtime init
In future patches, we require greater flexibility in describing the number of scalers available on each CRTC. To ease that transition we move the current assignment to intel_device_info. Scaler structure initialisation is done if scaler is available on the CRTC. Gen9 check is not required as on depending upon numbers of scalers we initialize scalers or return without doing anything in skl_init_scalers. v3: Changed skl_init_scaler to intel_crtc_init_scalers v2: Added Chris's comments. Signed-off-by: NNabendu Maiti <nabendu.bikash.maiti@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v2) Reviewed-by: NAnder Conselvan de Oliveira <conselvan2@gmail.com> Signed-off-by: NAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1480398794-22741-1-git-send-email-nabendu.bikash.maiti@intel.com
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