164 	 * Once NV12 is enabled, handle it here while allocating scaler  in skl_update_scaler()
176 	 * if plane is being disabled or scaler is no more required or force detach  in skl_update_scaler()
177 	 *  - free scaler binded to this plane/crtc  in skl_update_scaler()
180 	 * Here scaler state in crtc_state is set free so that  in skl_update_scaler()
181 	 * scaler can be assigned to other user. Actual register  in skl_update_scaler()
182 	 * update to free the scaler is done in plane/panel-fit programming.  in skl_update_scaler()
192 				    "Staged freeing scaler id %d scaler_users = 0x%x\n",  in skl_update_scaler()
214 			    "size is out of scaler range\n",  in skl_update_scaler()
222 	 * The pipe scaler does not use all the bits of PIPESRC, at least  in skl_update_scaler()
225 	 * we assume the limits match the scaler destination size limits.  in skl_update_scaler()
232 			    "is out of scaler range\n",  in skl_update_scaler()
238 	/* mark this plane as a scaler user in crtc_state */  in skl_update_scaler()
271  * skl_update_scaler_plane - Stages update to scaler state for a given plane.
272  * @crtc_state: crtc's scaler state
288 	/* Pre-gen11 and SDR planes always need a scaler for planar formats. */  in skl_update_scaler_plane()
334 	 * as the first scaler, so we don't reject downscaling  in calculate_max_scale()
341 		 * scaler supports a vertical scaling factor  in calculate_max_scale()
376 		     "Cannot find scaler for %s:%d\n", name, idx))  in intel_atomic_setup_scaler()
379 	/* set scaler mode */  in intel_atomic_setup_scaler()
389 			 * On gen11+'s HDR planes we only use the scaler for  in intel_atomic_setup_scaler()
391 			 * we don't need the scaler to upsample the UV plane.  in intel_atomic_setup_scaler()
407 		 * when only 1 scaler is in use on a pipe with 2 scalers  in intel_atomic_setup_scaler()
408 		 * scaler 0 operates in high quality (HQ) mode.  in intel_atomic_setup_scaler()
409 		 * In this case use scaler 0 to take advantage of HQ mode  in intel_atomic_setup_scaler()
431 		 * support HQ vs dynamic scaler properly.  in intel_atomic_setup_scaler()
440 				    "[CRTC:%d:%s] scaler %d doesn't support required plane scaling\n",  in intel_atomic_setup_scaler()
477 				    "Scaler %d doesn't support required pipe scaling\n",  in intel_atomic_setup_scaler()
489 	drm_dbg_kms(display->drm, "[CRTC:%d:%s] attached scaler id %u.%u to %s:%d\n",  in intel_atomic_setup_scaler()
522 	/* plane on different crtc cannot be a scaler user of this crtc */  in setup_plane_scaler()
555  * This function takes into account the current scaler(s) in use by any planes
577 	 * - staged scaler requests are already in scaler_state->scaler_users  in intel_atomic_setup_scalers()
583 	 * - as part of crtc_commit, scaler will be either attached or detached  in intel_atomic_setup_scalers()
600 		/* skip if scaler not required */  in intel_atomic_setup_scalers()
662  *  To enable nearest-neighbor scaling:  program scaler coefficients with
791 	const struct intel_scaler *scaler =  in skl_program_plane_scaler()  local
827 	ps_ctrl = PS_SCALER_EN | PS_BINDING_PLANE(plane->id) | scaler->mode |  in skl_program_plane_scaler()
895 	/* find scaler attached to this pipe */  in skl_scaler_get_config()