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>
16 #define DPRX_EXTENDED_DPCD_FIELD 0x2200
18 #define DP_DOWNSTREAM_PORTS 4
19 #define DP_DOWNSTREAM_CAP_SIZE 4
21 struct dp_display_mode {
22 struct drm_display_mode drm_mode;
31 struct drm_dp_aux *aux;
33 struct dp_catalog *catalog;
43 u8 dpcd[DP_RECEIVER_CAP_SIZE + 1];
44 u8 ds_cap_info[DP_DOWNSTREAM_PORTS * DP_DOWNSTREAM_CAP_SIZE];
48 struct dp_link_info link_info;
49 struct drm_dp_desc desc;
51 struct drm_connector *connector;
52 struct dp_display_mode dp_mode;
53 struct dp_panel_psr psr_cap;
63 int dp_panel_init_panel_info(struct dp_panel *dp_panel);
64 int dp_panel_deinit(struct dp_panel *dp_panel);
65 int dp_panel_timing_cfg(struct dp_panel *dp_panel);
66 void dp_panel_dump_regs(struct dp_panel *dp_panel);
67 int dp_panel_read_sink_caps(struct dp_panel *dp_panel,
68 struct drm_connector *connector);
69 u32 dp_panel_get_mode_bpp(struct dp_panel *dp_panel, u32 mode_max_bpp,
71 int dp_panel_get_modes(struct dp_panel *dp_panel,
72 struct drm_connector *connector);
73 void dp_panel_handle_sink_request(struct dp_panel *dp_panel);
74 void dp_panel_tpg_config(struct dp_panel *dp_panel, bool enable);
77 * is_link_rate_valid() - validates the link rate
78 * @lane_rate: link rate requested by the sink
80 * Returns true if the requested link rate is supported.
82 static inline bool is_link_rate_valid(u32 bw_code)
84 return (bw_code == DP_LINK_BW_1_62 ||
85 bw_code == DP_LINK_BW_2_7 ||
86 bw_code == DP_LINK_BW_5_4 ||
87 bw_code == DP_LINK_BW_8_1);
91 * dp_link_is_lane_count_valid() - validates the lane count
92 * @lane_count: lane count requested by the sink
94 * Returns true if the requested lane count is supported.
96 static inline bool is_lane_count_valid(u32 lane_count)
98 return (lane_count == 1 ||
103 struct dp_panel *dp_panel_get(struct dp_panel_in *in);
104 void dp_panel_put(struct dp_panel *dp_panel);
105 #endif /* _DP_PANEL_H_ */