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drm/amd/display: BIOS LTTPR Caps Interface

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[WHY]
Some platforms will have LTTPR capabilities forced on by VBIOS flags;
the functions added here will access those flags.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wesley Chalmers
2021-02-21 23:05:48 -05:00
committed by Alex Deucher
parent 0698b13403
commit 95574c6961
3 changed files with 178 additions and 1 deletions
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37
drivers/gpu/drm/amd/include/atomfirmware.h
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@@ -981,6 +981,40 @@ struct atom_display_controller_info_v4_2
uint8_t reserved3[8];
};
struct atom_display_controller_info_v4_3
{
struct atom_common_table_header table_header;
uint32_t display_caps;
uint32_t bootup_dispclk_10khz;
uint16_t dce_refclk_10khz;
uint16_t i2c_engine_refclk_10khz;
uint16_t dvi_ss_percentage; // in unit of 0.001%
uint16_t dvi_ss_rate_10hz;
uint16_t hdmi_ss_percentage; // in unit of 0.001%
uint16_t hdmi_ss_rate_10hz;
uint16_t dp_ss_percentage; // in unit of 0.001%
uint16_t dp_ss_rate_10hz;
uint8_t dvi_ss_mode; // enum of atom_spread_spectrum_mode
uint8_t hdmi_ss_mode; // enum of atom_spread_spectrum_mode
uint8_t dp_ss_mode; // enum of atom_spread_spectrum_mode
uint8_t ss_reserved;
uint8_t dfp_hardcode_mode_num; // DFP hardcode mode number defined in StandardVESA_TimingTable when EDID is not available
uint8_t dfp_hardcode_refreshrate;// DFP hardcode mode refreshrate defined in StandardVESA_TimingTable when EDID is not available
uint8_t vga_hardcode_mode_num; // VGA hardcode mode number defined in StandardVESA_TimingTable when EDID is not avablable
uint8_t vga_hardcode_refreshrate;// VGA hardcode mode number defined in StandardVESA_TimingTable when EDID is not avablable
uint16_t dpphy_refclk_10khz;
uint16_t reserved2;
uint8_t dcnip_min_ver;
uint8_t dcnip_max_ver;
uint8_t max_disp_pipe_num;
uint8_t max_vbios_active_disp_pipe_num;
uint8_t max_ppll_num;
uint8_t max_disp_phy_num;
uint8_t max_aux_pairs;
uint8_t remotedisplayconfig;
uint8_t reserved3[8];
};
struct atom_display_controller_info_v4_4 {
struct atom_common_table_header table_header;
uint32_t display_caps;
@@ -1043,7 +1077,8 @@ enum dce_info_caps_def
DCE_INFO_CAPS_DISABLE_DFP_DP_HBR2 =0x04,
// only for VBIOS
DCE_INFO_CAPS_ENABLE_INTERLAC_TIMING =0x08,
// only for VBIOS
DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE =0x20,
};
/*