diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c index b8684131151d..078b7e344185 100644 --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c @@ -2079,6 +2079,85 @@ static uint16_t bios_parser_pack_data_tables( return 0; } +static struct atom_dc_golden_table_v1 *bios_get_golden_table( + struct bios_parser *bp, + uint32_t rev_major, + uint32_t rev_minor, + uint16_t *dc_golden_table_ver) +{ + struct atom_display_controller_info_v4_4 *disp_cntl_tbl_4_4 = NULL; + uint32_t dc_golden_offset = 0; + *dc_golden_table_ver = 0; + + if (!DATA_TABLES(dce_info)) + return NULL; + + /* ver.4.4 or higher */ + switch (rev_major) { + case 4: + switch (rev_minor) { + case 4: + disp_cntl_tbl_4_4 = GET_IMAGE(struct atom_display_controller_info_v4_4, + DATA_TABLES(dce_info)); + if (!disp_cntl_tbl_4_4) + return NULL; + dc_golden_offset = DATA_TABLES(dce_info) + disp_cntl_tbl_4_4->dc_golden_table_offset; + *dc_golden_table_ver = disp_cntl_tbl_4_4->dc_golden_table_ver; + break; + } + break; + } + + if (!dc_golden_offset) + return NULL; + + if (*dc_golden_table_ver != 1) + return NULL; + + return GET_IMAGE(struct atom_dc_golden_table_v1, + dc_golden_offset); +} + +static enum bp_result bios_get_atom_dc_golden_table( + struct dc_bios *dcb) +{ + struct bios_parser *bp = BP_FROM_DCB(dcb); + enum bp_result result = BP_RESULT_OK; + struct atom_dc_golden_table_v1 *atom_dc_golden_table = NULL; + struct atom_common_table_header *header; + struct atom_data_revision tbl_revision; + uint16_t dc_golden_table_ver = 0; + + header = GET_IMAGE(struct atom_common_table_header, + DATA_TABLES(dce_info)); + if (!header) + return BP_RESULT_UNSUPPORTED; + + get_atom_data_table_revision(header, &tbl_revision); + + atom_dc_golden_table = bios_get_golden_table(bp, + tbl_revision.major, + tbl_revision.minor, + &dc_golden_table_ver); + + if (!atom_dc_golden_table) + return BP_RESULT_UNSUPPORTED; + + dcb->golden_table.dc_golden_table_ver = dc_golden_table_ver; + dcb->golden_table.aux_dphy_rx_control0_val = atom_dc_golden_table->aux_dphy_rx_control0_val; + dcb->golden_table.aux_dphy_rx_control1_val = atom_dc_golden_table->aux_dphy_rx_control1_val; + dcb->golden_table.aux_dphy_tx_control_val = atom_dc_golden_table->aux_dphy_tx_control_val; + dcb->golden_table.dc_gpio_aux_ctrl_0_val = atom_dc_golden_table->dc_gpio_aux_ctrl_0_val; + dcb->golden_table.dc_gpio_aux_ctrl_1_val = atom_dc_golden_table->dc_gpio_aux_ctrl_1_val; + dcb->golden_table.dc_gpio_aux_ctrl_2_val = atom_dc_golden_table->dc_gpio_aux_ctrl_2_val; + dcb->golden_table.dc_gpio_aux_ctrl_3_val = atom_dc_golden_table->dc_gpio_aux_ctrl_3_val; + dcb->golden_table.dc_gpio_aux_ctrl_4_val = atom_dc_golden_table->dc_gpio_aux_ctrl_4_val; + dcb->golden_table.dc_gpio_aux_ctrl_5_val = atom_dc_golden_table->dc_gpio_aux_ctrl_5_val; + + return result; +} + + static const struct dc_vbios_funcs vbios_funcs = { .get_connectors_number = bios_parser_get_connectors_number, @@ -2128,6 +2207,8 @@ static const struct dc_vbios_funcs vbios_funcs = { .get_board_layout_info = bios_get_board_layout_info, .pack_data_tables = bios_parser_pack_data_tables, + + .get_atom_dc_golden_table = bios_get_atom_dc_golden_table }; static bool bios_parser2_construct( |