Merge "msm: mdss: Allow WB to use first available control path"

							bool rotator_session)

{

	/*

	 * Initial control paths are used for primary and external

	 * interfaces and remaining control paths are used for WB

	 * interfaces.

	 * Any control path can be routed to any of the hardware datapaths.

	 * But there is a HW restriction for 3D Mux block. As the 3D Mux

	 * settings in the CTL registers are double buffered, if an interface

	 * uses it and disconnects, then the subsequent interface which gets

	 * connected should use the same control path in order to clear the

	 * 3D MUX settings.

	 * To handle this restriction, we are allowing WB also, to loop through

	 * all the avialable control paths, so that it can reuse the control

	 * path left by the external interface, thereby clearing the 3D Mux

	 * settings.

	 * The initial control paths can be used by Primary, External and WB.

	 * The rotator can use the remaining available control paths.

	 */

	return rotator_session ? (mdata->nctl - mdata->nmixers_wb) :

				(mdata->nctl - mdata->nwb);

		MDSS_MDP_CTL0;

}

static inline bool mdss_mdp_is_nrt_vbif_client(struct mdss_data_type *mdata,