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Commit fe32e4b8 authored by Veera Sundaram Sankaran's avatar Veera Sundaram Sankaran
Browse files

msm: mdss: ignore writeback updates through pan_display path 



Updating writeback through pan_display would be pointless as
there is no output buffer available. So, ignore wb updates
through this path.

Change-Id: Icfb0a8252c707eb5ac72810bc3b213aea95b7373
Signed-off-by: default avatarVeera Sundaram Sankaran <veeras@codeaurora.org>
parent 8ca03863

drivers/video/msm/mdss/mdss_mdp_overlay.c

+9 −0
Original line number Diff line number Diff line
@@ -2416,6 +2416,15 @@ static void mdss_mdp_overlay_pan_display(struct msm_fb_data_type *mfd) 
	if (!mdp5_data || !mdp5_data->ctl)

		return;



	/*

	 * Ignore writeback updates through pan_display as output

	 * buffer is not available.

	 */

	if (mfd->panel_info->type == WRITEBACK_PANEL) {

		pr_err_once("writeback update not supported through pan display\n");

		return;

	}



	if (IS_ERR_OR_NULL(mfd->fbmem_buf) || fbi->fix.smem_len == 0 ||

		mdp5_data->borderfill_enable) {

		mfd->mdp.kickoff_fnc(mfd, NULL);