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authorLothar Waßmann <LW@KARO-electronics.de>2016-08-16 15:34:37 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-08-16 17:32:08 +0200
commitcb34d7f2dcf0d3a326ba76fe3a8e72011215dffc (patch)
tree5786cede5964916d2ab721c3d237ed6330ccdf19 /drivers/gpu/drm/drm_modes.c
parent750fb8c439bcaa2752d717503119f66032a22b76 (diff)
drm: update kerneldoc for changes introduced by commits "16fadc2568e9" and "9671e228fb78"
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
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
-rw-r--r--drivers/gpu/drm/drm_modes.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 15704873fd61..53f07ac7c174 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -657,6 +657,15 @@ void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
}
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)
{
*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
* @np: device_node with the timing specification
* @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
*
* This function is expensive and should only be used, if only one mode is to be