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Commit 6ab8fbb8 authored by Animesh Kishore's avatar Animesh Kishore
Browse files

mdss: mdp: Constant fetch start across dfps change 



Timing engine HW restricts changing programmable fetch
start when off. Fix fetch start in SW drivers.

Change-Id: I8ec80408a4ae36a7dfd963bc570fca9672d12341
Signed-off-by: default avatarAnimesh Kishore <animeshk@codeaurora.org>
parent c9dc859c

drivers/video/fbdev/msm/mdss_mdp_intf_video.c

+3 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2012-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -1901,7 +1901,6 @@ static void mdss_mdp_fetch_start_config(struct mdss_mdp_video_ctx *ctx, 


	mdata = ctl->mdata;



	pinfo->prg_fet = mdss_mdp_get_prefetch_lines(pinfo);

	if (!pinfo->prg_fet) {

		pr_debug("programmable fetch is not needed/supported\n");
@@ -2207,6 +2206,8 @@ static int mdss_mdp_video_ctx_setup(struct mdss_mdp_ctl *ctl, 
				ctx->intf_num);

			return -EINVAL;

		}



		pinfo->prg_fet = mdss_mdp_get_prefetch_lines(pinfo);

		mdss_mdp_fetch_start_config(ctx, ctl);



		if (test_bit(MDSS_QOS_VBLANK_PANIC_CTRL, mdata->mdss_qos_map))

drivers/video/fbdev/msm/mdss_mdp_overlay.c

+9 −1
Original line number Diff line number Diff line
@@ -3367,6 +3367,9 @@ static void cache_initial_timings(struct mdss_panel_data *pdata) 
{

	if (!pdata->panel_info.default_fps) {



		pdata->panel_info.default_prg_fet =

			mdss_mdp_get_prefetch_lines(&pdata->panel_info);



		/*

		 * This value will change dynamically once the

		 * actual dfps update happen in hw.
@@ -3439,8 +3442,13 @@ static void dfps_update_panel_params(struct mdss_panel_data *pdata, 


		dfps_update_fps(&pdata->panel_info, new_fps);



		/*

		 * Fetch start is pinned to default fps.

		 * Adjust programmable fetch accordingly.

		 */

		pdata->panel_info.prg_fet =

			mdss_mdp_get_prefetch_lines(&pdata->panel_info);

			(pdata->panel_info.default_prg_fet) ?

			(pdata->panel_info.default_prg_fet + add_v_lines) : 0;



	} else if (pdata->panel_info.dfps_update ==

			DFPS_IMMEDIATE_PORCH_UPDATE_MODE_HFP) {

drivers/video/fbdev/msm/mdss_panel.h

+3 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2008-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2008-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -814,6 +814,8 @@ struct mdss_panel_info { 
	int new_fps;

	/* stores initial fps after boot */

	u32 default_fps;

	/* store programmable fetch corresponding to default fps */

	u32 default_prg_fet;

	/* stores initial vtotal (vfp-method) or htotal (hfp-method) */

	u32 saved_total;

	/* stores initial vfp (vfp-method) or hfp (hfp-method) */