/* SPDX-License-Identifier: GPL-2.0-only */
|
/*
|
* Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
|
*/
|
|
#ifndef _DP_PANEL_H_
|
#define _DP_PANEL_H_
|
|
#include <drm/msm_drm.h>
|
|
#include "dp_aux.h"
|
#include "dp_link.h"
|
#include "dp_hpd.h"
|
|
struct edid;
|
|
#define DPRX_EXTENDED_DPCD_FIELD 0x2200
|
|
#define DP_DOWNSTREAM_PORTS 4
|
#define DP_DOWNSTREAM_CAP_SIZE 4
|
|
struct dp_display_mode {
|
struct drm_display_mode drm_mode;
|
u32 capabilities;
|
u32 bpp;
|
u32 h_active_low;
|
u32 v_active_low;
|
};
|
|
struct dp_panel_in {
|
struct device *dev;
|
struct drm_dp_aux *aux;
|
struct dp_link *link;
|
struct dp_catalog *catalog;
|
};
|
|
struct dp_panel {
|
/* dpcd raw data */
|
u8 dpcd[DP_RECEIVER_CAP_SIZE + 1];
|
u8 ds_cap_info[DP_DOWNSTREAM_PORTS * DP_DOWNSTREAM_CAP_SIZE];
|
u32 ds_port_cnt;
|
u32 dfp_present;
|
|
struct dp_link_info link_info;
|
struct drm_dp_desc desc;
|
struct edid *edid;
|
struct drm_connector *connector;
|
struct dp_display_mode dp_mode;
|
bool video_test;
|
|
u32 vic;
|
u32 max_pclk_khz;
|
u32 max_dp_lanes;
|
|
u32 max_bw_code;
|
};
|
|
int dp_panel_init_panel_info(struct dp_panel *dp_panel);
|
int dp_panel_deinit(struct dp_panel *dp_panel);
|
int dp_panel_timing_cfg(struct dp_panel *dp_panel);
|
void dp_panel_dump_regs(struct dp_panel *dp_panel);
|
int dp_panel_read_sink_caps(struct dp_panel *dp_panel,
|
struct drm_connector *connector);
|
u32 dp_panel_get_mode_bpp(struct dp_panel *dp_panel, u32 mode_max_bpp,
|
u32 mode_pclk_khz);
|
int dp_panel_get_modes(struct dp_panel *dp_panel,
|
struct drm_connector *connector, struct dp_display_mode *mode);
|
void dp_panel_handle_sink_request(struct dp_panel *dp_panel);
|
void dp_panel_tpg_config(struct dp_panel *dp_panel, bool enable);
|
|
/**
|
* is_link_rate_valid() - validates the link rate
|
* @lane_rate: link rate requested by the sink
|
*
|
* Returns true if the requested link rate is supported.
|
*/
|
static inline bool is_link_rate_valid(u32 bw_code)
|
{
|
return (bw_code == DP_LINK_BW_1_62 ||
|
bw_code == DP_LINK_BW_2_7 ||
|
bw_code == DP_LINK_BW_5_4 ||
|
bw_code == DP_LINK_BW_8_1);
|
}
|
|
/**
|
* dp_link_is_lane_count_valid() - validates the lane count
|
* @lane_count: lane count requested by the sink
|
*
|
* Returns true if the requested lane count is supported.
|
*/
|
static inline bool is_lane_count_valid(u32 lane_count)
|
{
|
return (lane_count == 1 ||
|
lane_count == 2 ||
|
lane_count == 4);
|
}
|
|
struct dp_panel *dp_panel_get(struct dp_panel_in *in);
|
void dp_panel_put(struct dp_panel *dp_panel);
|
#endif /* _DP_PANEL_H_ */
|
