216  * This function takes into account the current scaler(s) in use by any planes
241 	 * - staged scaler requests are already in scaler_state->scaler_users  in intel_atomic_setup_scalers()
247 	 * - as part of crtc_commit, scaler will be either attached or detached  in intel_atomic_setup_scalers()
264 		/* skip if scaler not required */  in intel_atomic_setup_scalers()
272 			/* panel fitter case: assign as a crtc scaler */  in intel_atomic_setup_scalers()
277 			/* plane scaler case: assign as a plane scaler */  in intel_atomic_setup_scalers()
282 			 * to enable/disable hq mode, add planes that are using scaler  in intel_atomic_setup_scalers()
306 			/* plane on different crtc cannot be a scaler user of this crtc */  in intel_atomic_setup_scalers()
317 			/* find a free scaler */  in intel_atomic_setup_scalers()
322 					DRM_DEBUG_KMS("Attached scaler id %u.%u to %s:%d\n",  in intel_atomic_setup_scalers()
330 			DRM_DEBUG_KMS("Cannot find scaler for %s:%d\n", name, idx);  in intel_atomic_setup_scalers()
334 		/* set scaler mode */  in intel_atomic_setup_scalers()
349 			 * when only 1 scaler is in use on either pipe A or B,  in intel_atomic_setup_scalers()
350 			 * scaler 0 operates in high quality (HQ) mode.  in intel_atomic_setup_scalers()
351 			 * In this case use scaler 0 to take advantage of HQ mode  in intel_atomic_setup_scalers()