disp: msm: sde: ignore sspp check in rm splash init during vm handoff

The last commit in primary-vm before transitioning to
trusted-vm during trusted-ui usecase will be NULL
commit for video mode. In the current splash path,
rm reserve during cont splash res init will succeed
only if there are sspps staged on the mixer. Avoid
this check for vm handoff usecase.

Change-Id: I9829c66f8eb856cc009edc35e489bc9adad1c5d7
Signed-off-by: Krishna Manikandan <[email protected]>

msm/sde/sde_rm.c

@@ -1868,12 +1868,15 @@ static int _sde_rm_get_hw_blk_for_cont_splash(struct sde_rm *rm,
 {
 	u32 lm_reg;
 	struct sde_rm_hw_iter iter_lm, iter_dsc;
+	struct sde_kms *sde_kms;
 
 	if (!rm || !ctl || !splash_display) {
 		SDE_ERROR("invalid input parameters\n");
 		return 0;
 	}
 
+	sde_kms = container_of(rm, struct sde_kms, rm);
+
 	sde_rm_init_hw_iter(&iter_lm, 0, SDE_HW_BLK_LM);
 	sde_rm_init_hw_iter(&iter_dsc, 0, SDE_HW_BLK_DSC);
 	while (_sde_rm_get_hw_locked(rm, &iter_lm)) {
@@ -1894,6 +1897,12 @@ static int _sde_rm_get_hw_blk_for_cont_splash(struct sde_rm *rm,
 					&splash_display->pipes[
 					splash_display->pipe_cnt], 1)) {
 			splash_display->pipe_cnt++;
+		} else if (sde_kms->splash_data.type == SDE_VM_HANDOFF) {
+			/* Allow VM handoff without any pipes, as it is a
+			 * valid case to have NULL commit before the
+			 * transition.
+			 */
+			SDE_DEBUG("VM handoff with no pipes staged\n");
 		} else {
 			SDE_ERROR("no pipe detected on LM-%d\n",
 					iter_lm.blk->id - LM_0);