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drm: update kerneldoc for changes introduced by commits "16fadc2568e9" and "9671e228fb78"

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Describe the new parameter 'bus_flags' to of_get_drm_display_mode() in
the kerneldoc comments and add kerneldoc comments to the new function
drm_bus_flags_from_videomode().

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471354477-25877-1-git-send-email-LW@KARO-electronics.de
This commit is contained in:
Lothar Waßmann 2016-08-16 15:34:37 +02:00 committed by Daniel Vetter
parent 750fb8c439
commit cb34d7f2dc
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/drm_modes.c
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@ -657,6 +657,15 @@ void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
} }
EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode); EXPORT_SYMBOL_GPL(drm_display_mode_to_videomode);
/**
* drm_bus_flags_from_videomode - extract information about pixelclk and
* DE polarity from videomode and store it in a separate variable
* @vm: videomode structure to use
* @bus_flags: information about pixelclk and DE polarity will be stored here
*
* Sets DRM_BUS_FLAG_DE_(LOW|HIGH) and DRM_BUS_FLAG_PIXDATA_(POS|NEG)EDGE
* in @bus_flags according to DISPLAY_FLAGS found in @vm
*/
void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags) void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags)
{ {
*bus_flags = 0; *bus_flags = 0;
@ -677,6 +686,7 @@ EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode);
* of_get_drm_display_mode - get a drm_display_mode from devicetree * of_get_drm_display_mode - get a drm_display_mode from devicetree
* @np: device_node with the timing specification * @np: device_node with the timing specification
* @dmode: will be set to the return value * @dmode: will be set to the return value
* @bus_flags: information about pixelclk and DE polarity
* @index: index into the list of display timings in devicetree * @index: index into the list of display timings in devicetree
* *
* This function is expensive and should only be used, if only one mode is to be * This function is expensive and should only be used, if only one mode is to be