diff options
Diffstat (limited to 'include/drm/drm_dp_helper.h')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index c01564991a9f..05cc31b5db16 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1078,6 +1078,25 @@ struct drm_dp_aux_msg { size_t size; }; +struct cec_adapter; +struct edid; + +/** + * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX + * @lock: mutex protecting this struct + * @adap: the CEC adapter for CEC-Tunneling-over-AUX support. + * @name: name of the CEC adapter + * @parent: parent device of the CEC adapter + * @unregister_work: unregister the CEC adapter + */ +struct drm_dp_aux_cec { + struct mutex lock; + struct cec_adapter *adap; + const char *name; + struct device *parent; + struct delayed_work unregister_work; +}; + /** * struct drm_dp_aux - DisplayPort AUX channel * @name: user-visible name of this AUX channel and the I2C-over-AUX adapter @@ -1136,6 +1155,10 @@ struct drm_dp_aux { * @i2c_defer_count: Counts I2C DEFERs, used for DP validation. */ unsigned i2c_defer_count; + /** + * @cec: struct containing fields used for CEC-Tunneling-over-AUX. + */ + struct drm_dp_aux_cec cec; }; ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset, @@ -1258,4 +1281,37 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk) return desc->quirks & BIT(quirk); } +#ifdef CONFIG_DRM_DP_CEC +void drm_dp_cec_irq(struct drm_dp_aux *aux); +void drm_dp_cec_register_connector(struct drm_dp_aux *aux, const char *name, + struct device *parent); +void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux); +void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid); +void drm_dp_cec_unset_edid(struct drm_dp_aux *aux); +#else +static inline void drm_dp_cec_irq(struct drm_dp_aux *aux) +{ +} + +static inline void drm_dp_cec_register_connector(struct drm_dp_aux *aux, + const char *name, + struct device *parent) +{ +} + +static inline void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux) +{ +} + +static inline void drm_dp_cec_set_edid(struct drm_dp_aux *aux, + const struct edid *edid) +{ +} + +static inline void drm_dp_cec_unset_edid(struct drm_dp_aux *aux) +{ +} + +#endif + #endif /* _DRM_DP_HELPER_H_ */ |