disp: msm: sde: use drm mode set by user-mode in trusted-vm

Trusted-vm uses the cont-splash path to initialize the software
states by reading the hardware registers and populating the
SDE & DRM software states. But drm mode cannot be determined by
register reads, so rely on user-mode to get the mode which comes
as part of the first atomic_commit check phase which handles the
transition. The primary-vm user-mode passes the current mode to
trusted-vm through qrtr which is in-turn passed to driver to
set that particular mode.

Change-Id: I4fb86b40b8a0583c8edb539b0a51dcd33de731ff
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>

msm/sde/sde_vm.h

@@ -166,6 +166,15 @@ struct sde_vm_ops {
 	 * @return - 0 on success, errorcode otherwise
 	 */
 	int (*vm_msg_send)(struct sde_vm *sde_vm, void *msg, size_t msg_size);
+
+	/**
+	 * vm_resource_init - hook to the handler when resource
+	 *                           accept/reclaim fails.
+	 * @sde_kms - handle to sde_kms
+	 * @state: current update atomic commit state
+	 */
+	int (*vm_resource_init)(struct sde_kms *sde_kms,
+			struct drm_atomic_state *state);
 };
 
 /**