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Commit 51f8da59 authored by Jani Nikula's avatar Jani Nikula Committed by Dave Airlie
Browse files

drm/edid: add drm_edid_duplicate 



We have some code duplication related to EDID duplication. Add a helper.

Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent c9ff160b

drivers/gpu/drm/drm_edid.c

+12 −0
Original line number Diff line number Diff line
@@ -1264,6 +1264,18 @@ struct edid *drm_get_edid(struct drm_connector *connector, 
}

EXPORT_SYMBOL(drm_get_edid);



/**

 * drm_edid_duplicate - duplicate an EDID and the extensions

 * @edid: EDID to duplicate

 *

 * Return duplicate edid or NULL on allocation failure.

 */

struct edid *drm_edid_duplicate(const struct edid *edid)

{

	return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);

}

EXPORT_SYMBOL(drm_edid_duplicate);



/*** EDID parsing ***/



/**

include/drm/drm_crtc.h

+1 −0
Original line number Diff line number Diff line
@@ -964,6 +964,7 @@ extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_m 
extern bool drm_probe_ddc(struct i2c_adapter *adapter);

extern struct edid *drm_get_edid(struct drm_connector *connector,

				 struct i2c_adapter *adapter);

extern struct edid *drm_edid_duplicate(const struct edid *edid);

extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);

extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);

extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);