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drm/panel: use inline comments in drm_panel.h

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Inline comments provide better space for additional comments.
Comments was slightly edited to follow the normal style,
but no change to actual content.
Used the opportuniy to change the order in drm_panel_funcs
to follow the order they will be used by a panel.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190804201637.1240-13-sam@ravnborg.org
This commit is contained in:
Sam Ravnborg 2019-08-04 22:16:33 +02:00
parent 7a833d307c
commit 8b0c6e2faa
1 changed files with 66 additions and 16 deletions
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82
include/drm/drm_panel.h
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@ -36,14 +36,6 @@ struct display_timing;
/**
* struct drm_panel_funcs - perform operations on a given panel
* @disable: disable panel (turn off back light, etc.)
* @unprepare: turn off panel
* @prepare: turn on panel and perform set up
* @enable: enable panel (turn on back light, etc.)
* @get_modes: add modes to the connector that the panel is attached to and
* return the number of modes added
* @get_timings: copy display timings into the provided array and return
* the number of display timings available
*
* The .prepare() function is typically called before the display controller
* starts to transmit video data. Panel drivers can use this to turn the panel
@ -69,31 +61,89 @@ struct display_timing;
* the panel. This is the job of the .unprepare() function.
*/
struct drm_panel_funcs {
int (*disable)(struct drm_panel *panel);
int (*unprepare)(struct drm_panel *panel);
/**
* @prepare:
*
* Turn on panel and perform set up.
*/
int (*prepare)(struct drm_panel *panel);
/**
* @enable:
*
* Enable panel (turn on back light, etc.).
*/
int (*enable)(struct drm_panel *panel);
/**
* @disable:
*
* Disable panel (turn off back light, etc.).
*/
int (*disable)(struct drm_panel *panel);
/**
* @unprepare:
*
* Turn off panel.
*/
int (*unprepare)(struct drm_panel *panel);
/**
* @get_modes:
*
* Add modes to the connector that the panel is attached to and
* return the number of modes added.
*/
int (*get_modes)(struct drm_panel *panel);
/**
* @get_timings:
*
* Copy display timings into the provided array and return
* the number of display timings available.
*/
int (*get_timings)(struct drm_panel *panel, unsigned int num_timings,
struct display_timing *timings);
};
/**
* struct drm_panel - DRM panel object
* @drm: DRM device owning the panel
* @connector: DRM connector that the panel is attached to
* @dev: parent device of the panel
* @link: link from panel device (supplier) to DRM device (consumer)
* @funcs: operations that can be performed on the panel
* @list: panel entry in registry
*/
struct drm_panel {
/**
* @drm:
*
* DRM device owning the panel.
*/
struct drm_device *drm;
/**
* @connector:
*
* DRM connector that the panel is attached to.
*/
struct drm_connector *connector;
/**
* @dev:
*
* Parent device of the panel.
*/
struct device *dev;
/**
* @funcs:
*
* Operations that can be performed on the panel.
*/
const struct drm_panel_funcs *funcs;
/**
* @list:
*
* Panel entry in registry.
*/
struct list_head list;
};