1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
9 #include <drm/msm_drm.h>
17 #define DPRX_EXTENDED_DPCD_FIELD 0x2200
19 #define DP_DOWNSTREAM_PORTS 4
20 #define DP_DOWNSTREAM_CAP_SIZE 4
22 struct dp_display_mode {
23 struct drm_display_mode drm_mode;
32 struct drm_dp_aux *aux;
34 struct dp_catalog *catalog;
39 u8 dpcd[DP_RECEIVER_CAP_SIZE + 1];
40 u8 ds_cap_info[DP_DOWNSTREAM_PORTS * DP_DOWNSTREAM_CAP_SIZE];
44 struct dp_link_info link_info;
45 struct drm_dp_desc desc;
47 struct drm_connector *connector;
48 struct dp_display_mode dp_mode;
58 int dp_panel_init_panel_info(struct dp_panel *dp_panel);
59 int dp_panel_deinit(struct dp_panel *dp_panel);
60 int dp_panel_timing_cfg(struct dp_panel *dp_panel);
61 void dp_panel_dump_regs(struct dp_panel *dp_panel);
62 int dp_panel_read_sink_caps(struct dp_panel *dp_panel,
63 struct drm_connector *connector);
64 u32 dp_panel_get_mode_bpp(struct dp_panel *dp_panel, u32 mode_max_bpp,
66 int dp_panel_get_modes(struct dp_panel *dp_panel,
67 struct drm_connector *connector, struct dp_display_mode *mode);
68 void dp_panel_handle_sink_request(struct dp_panel *dp_panel);
69 void dp_panel_tpg_config(struct dp_panel *dp_panel, bool enable);
72 * is_link_rate_valid() - validates the link rate
73 * @lane_rate: link rate requested by the sink
75 * Returns true if the requested link rate is supported.
77 static inline bool is_link_rate_valid(u32 bw_code)
79 return (bw_code == DP_LINK_BW_1_62 ||
80 bw_code == DP_LINK_BW_2_7 ||
81 bw_code == DP_LINK_BW_5_4 ||
82 bw_code == DP_LINK_BW_8_1);
86 * dp_link_is_lane_count_valid() - validates the lane count
87 * @lane_count: lane count requested by the sink
89 * Returns true if the requested lane count is supported.
91 static inline bool is_lane_count_valid(u32 lane_count)
93 return (lane_count == 1 ||
98 struct dp_panel *dp_panel_get(struct dp_panel_in *in);
99 void dp_panel_put(struct dp_panel *dp_panel);
100 #endif /* _DP_PANEL_H_ */