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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/msm/dp/dp_panel.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_panel.h')
-rw-r--r-- | drivers/gpu/drm/msm/dp/dp_panel.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h new file mode 100644 index 0000000000..ed1030e17e --- /dev/null +++ b/drivers/gpu/drm/msm/dp/dp_panel.h @@ -0,0 +1,105 @@ +/* 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" + +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_psr { + u8 version; + u8 capabilities; +}; + +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; + struct dp_panel_psr psr_cap; + bool video_test; + + u32 vic; + u32 max_dp_lanes; + u32 max_dp_link_rate; + + 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); +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_ */ |