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: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170303133936.14964-2-tomeu.vizoso@collabora.com
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@ -732,6 +732,7 @@ struct drm_dp_aux_msg {
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* @name: user-visible name of this AUX channel and the I2C-over-AUX adapter
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* @name: user-visible name of this AUX channel and the I2C-over-AUX adapter
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* @ddc: I2C adapter that can be used for I2C-over-AUX communication
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* @ddc: I2C adapter that can be used for I2C-over-AUX communication
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* @dev: pointer to struct device that is the parent for this AUX channel
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* @dev: pointer to struct device that is the parent for this AUX channel
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* @crtc: backpointer to the crtc that is currently using this AUX channel
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* @hw_mutex: internal mutex used for locking transfers
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* @hw_mutex: internal mutex used for locking transfers
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* @transfer: transfers a message representing a single AUX transaction
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* @transfer: transfers a message representing a single AUX transaction
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*
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*
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@ -768,6 +769,7 @@ struct drm_dp_aux {
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const char *name;
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const char *name;
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struct i2c_adapter ddc;
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struct i2c_adapter ddc;
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struct device *dev;
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struct device *dev;
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struct drm_crtc *crtc;
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struct mutex hw_mutex;
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struct mutex hw_mutex;
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ssize_t (*transfer)(struct drm_dp_aux *aux,
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ssize_t (*transfer)(struct drm_dp_aux *aux,
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struct drm_dp_aux_msg *msg);
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struct drm_dp_aux_msg *msg);
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