Commit 47d7777f authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Daniel Vetter
Browse files

drm/core: Add drm_encoder_index. 



This is useful for adding encoder_mask in crtc_state.

Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarGustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452160762-30487-2-git-send-email-maarten.lankhorst@linux.intel.com
parent 2dbf0d90

drivers/gpu/drm/drm_crtc.c

+23 −0
Original line number Diff line number Diff line
@@ -1160,6 +1160,29 @@ out_unlock: 
}

EXPORT_SYMBOL(drm_encoder_init);



/**

 * drm_encoder_index - find the index of a registered encoder

 * @encoder: encoder to find index for

 *

 * Given a registered encoder, return the index of that encoder within a DRM

 * device's list of encoders.

 */

unsigned int drm_encoder_index(struct drm_encoder *encoder)

{

	unsigned int index = 0;

	struct drm_encoder *tmp;



	drm_for_each_encoder(tmp, encoder->dev) {

		if (tmp == encoder)

			return index;



		index++;

	}



	BUG();

}

EXPORT_SYMBOL(drm_encoder_index);



/**

 * drm_encoder_cleanup - cleans up an initialised encoder

 * @encoder: encoder to cleanup

include/drm/drm_crtc.h

+1 −0
Original line number Diff line number Diff line
@@ -2225,6 +2225,7 @@ int drm_encoder_init(struct drm_device *dev, 
		     struct drm_encoder *encoder,

		     const struct drm_encoder_funcs *funcs,

		     int encoder_type, const char *name, ...);

extern unsigned int drm_encoder_index(struct drm_encoder *encoder);



/**

 * drm_encoder_crtc_ok - can a given crtc drive a given encoder?

CRA Git | Maintained and supported by SUSTech CRA and CCSE