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path: root/drivers/gpu/drm/tegra/dp.h
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/* SPDX-License-Identifier: MIT */
/*
 * Copyright (C) 2013-2019 NVIDIA Corporation.
 * Copyright (C) 2015 Rob Clark
 */

#ifndef DRM_TEGRA_DP_H
#define DRM_TEGRA_DP_H 1

struct drm_dp_aux;

#define DP_LINK_CAP_ENHANCED_FRAMING (1 << 0)

/**
 * struct drm_dp_link - DP link capabilities
 * @revision: DP specification revision supported on the link
 * @rate: maximum clock rate supported on the link
 * @num_lanes: maximum number of lanes supported on the link
 * @capabilities: bitmask of capabilities supported on the link
 */
struct drm_dp_link {
	unsigned char revision;
	unsigned int rate;
	unsigned int num_lanes;
	unsigned long capabilities;
};

int drm_dp_link_probe(struct drm_dp_aux *aux, struct drm_dp_link *link);
int drm_dp_link_power_up(struct drm_dp_aux *aux, struct drm_dp_link *link);
int drm_dp_link_power_down(struct drm_dp_aux *aux, struct drm_dp_link *link);
int drm_dp_link_configure(struct drm_dp_aux *aux, struct drm_dp_link *link);

#endif