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: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---
include/drm/drm_dp_helper.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index ba89295c8651..a710e39b5f83 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -789,6 +789,7 @@ 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
*
@@ -825,6 +826,7 @@ 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);
--
2.9.3
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