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Commit 05d75511 authored by Lloyd Atkinson's avatar Lloyd Atkinson
Browse files

drm/msm/sde: add sde_connector kickoff trigger callbacks 



Add a callback into the connector framework to allow sending
per-frame parameters at kickoff time. Specifically, this is
needed to support the partial update feature where only a subset
region of interest is updated on the display.

Change-Id: I4a6982a33110e5b114a60b92926d43c8aced950d
Signed-off-by: default avatarLloyd Atkinson <latkinso@codeaurora.org>
parent fb8f000f

drivers/gpu/drm/msm/dsi-staging/dsi_display.c

+6 −0
Original line number Diff line number Diff line
@@ -3027,6 +3027,12 @@ int dsi_display_prepare(struct dsi_display *display) 
	return rc;

}



int dsi_display_pre_kickoff(struct dsi_display *display,

		struct msm_display_kickoff_params *params)

{

	return 0;

}



int dsi_display_enable(struct dsi_display *display)

{

	int rc = 0;

drivers/gpu/drm/msm/dsi-staging/dsi_display.h

+10 −0
Original line number Diff line number Diff line
@@ -417,4 +417,14 @@ int dsi_display_set_backlight(void *display, u32 bl_lvl); 
 * Return: error code

 */

int dsi_display_soft_reset(void *display);



/*

 * dsi_display_pre_kickoff - program kickoff-time features

 * @display: Pointer to private display structure

 * @params: Parameters for kickoff-time programming

 * Returns: Zero on success

 */

int dsi_display_pre_kickoff(struct dsi_display *display,

		struct msm_display_kickoff_params *params);



#endif /* _DSI_DISPLAY_H_ */

drivers/gpu/drm/msm/dsi-staging/dsi_drm.c

+12 −0
Original line number Diff line number Diff line
@@ -475,6 +475,18 @@ enum drm_mode_status dsi_conn_mode_valid(struct drm_connector *connector, 
	return MODE_OK;

}



int dsi_conn_pre_kickoff(struct drm_connector *connector,

		void *display,

		struct msm_display_kickoff_params *params)

{

	if (!connector || !display || !params) {

		pr_err("Invalid params\n");

		return -EINVAL;

	}



	return dsi_display_pre_kickoff(display, params);

}



struct dsi_bridge *dsi_drm_bridge_init(struct dsi_display *display,

				       struct drm_device *dev,

				       struct drm_encoder *encoder)

drivers/gpu/drm/msm/dsi-staging/dsi_drm.h

+12 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2017, 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
@@ -80,4 +80,15 @@ struct dsi_bridge *dsi_drm_bridge_init(struct dsi_display *display, 


void dsi_drm_bridge_cleanup(struct dsi_bridge *bridge);



/**

 * dsi_display_pre_kickoff - program kickoff-time features

 * @connector: Pointer to drm connector structure

 * @display: Pointer to private display structure

 * @params: Parameters for kickoff-time programming

 * Returns: Zero on success

 */

int dsi_conn_pre_kickoff(struct drm_connector *connector,

		void *display,

		struct msm_display_kickoff_params *params);



#endif /* _DSI_DRM_H_ */

drivers/gpu/drm/msm/msm_drv.h

+23 −0
Original line number Diff line number Diff line
@@ -363,6 +363,29 @@ struct msm_display_info { 
	struct msm_compression_info comp_info;

};



#define MSM_MAX_ROI	4



/**

 * struct msm_roi_mapping - Regions of interest structure for mapping CRTC to

 *	Connector output

 * @num_rects: number of valid rectangles in src and dst arrays

 * @src: source roi rectangle

 * @dst: destination roi rectangle

 */

struct msm_roi_mapping {

	uint32_t num_rects;

	struct drm_clip_rect src[MSM_MAX_ROI];

	struct drm_clip_rect dst[MSM_MAX_ROI];

};



/**

 * struct - msm_display_kickoff_params - info for display features at kickoff

 * @rois: Regions of interest structure for mapping CRTC to Connector output

 */

struct msm_display_kickoff_params {

	struct msm_roi_mapping *rois;

};



/**

 * struct msm_drm_event - defines custom event notification struct

 * @base: base object required for event notification by DRM framework.