160 	if (!IS_ERR_OR_NULL(ipu_plane->alpha_ch))  in ipu_plane_put_resources()
161 		ipu_idmac_put(ipu_plane->alpha_ch);  in ipu_plane_put_resources()
167 	int alpha_ch;  in ipu_plane_get_resources()  local
176 	alpha_ch = ipu_channel_alpha_channel(ipu_plane->dma);  in ipu_plane_get_resources()
177 	if (alpha_ch >= 0) {  in ipu_plane_get_resources()
178 		ipu_plane->alpha_ch = ipu_idmac_get(ipu_plane->ipu, alpha_ch);  in ipu_plane_get_resources()
179 		if (IS_ERR(ipu_plane->alpha_ch)) {  in ipu_plane_get_resources()
180 			ret = PTR_ERR(ipu_plane->alpha_ch);  in ipu_plane_get_resources()
182 				  alpha_ch, ret);  in ipu_plane_get_resources()
232 		ipu_idmac_enable_channel(ipu_plane->alpha_ch);  in ipu_plane_enable()
246 	if (ipu_plane->alpha_ch)  in ipu_plane_disable()
247 		ipu_idmac_disable_channel(ipu_plane->alpha_ch);  in ipu_plane_disable()
591 			active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch);  in ipu_plane_atomic_update()
592 			ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active,  in ipu_plane_atomic_update()
594 			ipu_idmac_select_buffer(ipu_plane->alpha_ch, !active);  in ipu_plane_atomic_update()
696 		ipu_cpmem_zero(ipu_plane->alpha_ch);  in ipu_plane_atomic_update()
697 		ipu_cpmem_set_resolution(ipu_plane->alpha_ch,  in ipu_plane_atomic_update()
700 		ipu_cpmem_set_format_passthrough(ipu_plane->alpha_ch, 8);  in ipu_plane_atomic_update()
701 		ipu_cpmem_set_high_priority(ipu_plane->alpha_ch);  in ipu_plane_atomic_update()
702 		ipu_idmac_set_double_buffer(ipu_plane->alpha_ch, 1);  in ipu_plane_atomic_update()
703 		ipu_cpmem_set_stride(ipu_plane->alpha_ch, fb->pitches[1]);  in ipu_plane_atomic_update()
704 		ipu_cpmem_set_burstsize(ipu_plane->alpha_ch, 16);  in ipu_plane_atomic_update()
705 		ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 0, alpha_eba);  in ipu_plane_atomic_update()
706 		ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 1, alpha_eba);  in ipu_plane_atomic_update()