drm_dp_get_adjust_request_voltage
u8 this_v = drm_dp_get_adjust_request_voltage(link_status, lane);
EXPORT_SYMBOL(drm_dp_get_adjust_request_voltage);
uint8_t this_v = drm_dp_get_adjust_request_voltage(link_status, lane);
u8 drm_dp_get_adjust_request_voltage(const u8 link_status[DP_LINK_STATUS_SIZE],
u8 this_v = drm_dp_get_adjust_request_voltage(link_status, lane);