Commit 4bb310fd authored by Tomeu Vizoso's avatar Tomeu Vizoso Committed by Sean Paul
Browse files

drm/dp: add crtc backpointer to drm_dp_aux 



This backpointer allows DP helpers to access the crtc it's currently
being used for.

v6: Have the backpointer be to drm_crtc (Sean Paul)

Signed-off-by: default avatarTomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: default avatarSean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170303133936.14964-2-tomeu.vizoso@collabora.com
parent 62c7bdc0

include/drm/drm_dp_helper.h

+2 −0
Original line number Diff line number Diff line
@@ -732,6 +732,7 @@ struct drm_dp_aux_msg { 
 * @name: user-visible name of this AUX channel and the I2C-over-AUX adapter

 * @ddc: I2C adapter that can be used for I2C-over-AUX communication

 * @dev: pointer to struct device that is the parent for this AUX channel

 * @crtc: backpointer to the crtc that is currently using this AUX channel

 * @hw_mutex: internal mutex used for locking transfers

 * @transfer: transfers a message representing a single AUX transaction

 *
@@ -768,6 +769,7 @@ struct drm_dp_aux { 
	const char *name;

	struct i2c_adapter ddc;

	struct device *dev;

	struct drm_crtc *crtc;

	struct mutex hw_mutex;

	ssize_t (*transfer)(struct drm_dp_aux *aux,

			    struct drm_dp_aux_msg *msg);

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