Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1efca051 authored by raghavendra ambadas's avatar raghavendra ambadas
Browse files

msm: mdss: configure dma source when displaying new frame 



Configure the dma only when there is change in format
or stride. This will avoid reconfigure of dma while
dma is active.

Change-Id: I31349df7bd5abc7dae7de64439732e978da2098a
Signed-off-by: default avatarRaghavendra Ambadas <rambad@codeaurora.org>
parent 827c6ada

drivers/video/msm/mdss/mdp3_layer.c

+9 −6
Original line number Diff line number Diff line 
/* Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.

/* Copyright (c) 2012-2017, 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
@@ -279,11 +279,14 @@ int mdp3_layer_pre_commit(struct msm_fb_data_type *mfd, 
	format = mdp3_ctrl_get_source_format(layer->buffer.format);

	pr_debug("stride:%d layer_width:%d", stride, layer->buffer.width);



	if ((dma->source_config.format != format) ||

			(dma->source_config.stride != stride)) {

		dma->source_config.format = format;

		dma->source_config.stride = stride;

		dma->output_config.pack_pattern =

			mdp3_ctrl_get_pack_pattern(layer->buffer.format);

		dma->update_src_cfg = true;

	}

	mdp3_session->overlay.id = 1;



	ret = __mdp3_handle_buffer_fences(mfd, commit, layer_list);