diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c index 2c7eb982eabc..cc5128e67daf 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c @@ -971,6 +971,98 @@ static bool dce112_program_pix_clk( return true; } +#if defined(CONFIG_DRM_AMD_DC_DCN) +static bool dcn31_program_pix_clk( + struct clock_source *clock_source, + struct pixel_clk_params *pix_clk_params, + struct pll_settings *pll_settings) +{ + struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source); + unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0; + unsigned int dp_dto_ref_khz = clock_source->ctx->dc->clk_mgr->dprefclk_khz; + const struct pixel_rate_range_table_entry *e = + look_up_in_video_optimized_rate_tlb(pix_clk_params->requested_pix_clk_100hz / 10); + struct bp_pixel_clock_parameters bp_pc_params = {0}; + enum transmitter_color_depth bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24; + // For these signal types Driver to program DP_DTO without calling VBIOS Command table + if (dc_is_dp_signal(pix_clk_params->signal_type)) { + if (e) { + /* Set DTO values: phase = target clock, modulo = reference clock*/ + REG_WRITE(PHASE[inst], e->target_pixel_rate_khz * e->mult_factor); + REG_WRITE(MODULO[inst], dp_dto_ref_khz * e->div_factor); + } else { + /* Set DTO values: phase = target clock, modulo = reference clock*/ + REG_WRITE(PHASE[inst], pll_settings->actual_pix_clk_100hz * 100); + REG_WRITE(MODULO[inst], dp_dto_ref_khz * 1000); + } + REG_UPDATE(PIXEL_RATE_CNTL[inst], DP_DTO0_ENABLE, 1); + } else { + if (IS_FPGA_MAXIMUS_DC(clock_source->ctx->dce_environment)) { + unsigned int inst = pix_clk_params->controller_id - CONTROLLER_ID_D0; + unsigned dp_dto_ref_100hz = 7000000; + unsigned clock_100hz = pll_settings->actual_pix_clk_100hz; + + /* Set DTO values: phase = target clock, modulo = reference clock */ + REG_WRITE(PHASE[inst], clock_100hz); + REG_WRITE(MODULO[inst], dp_dto_ref_100hz); + + /* Enable DTO */ + REG_UPDATE(PIXEL_RATE_CNTL[inst], DP_DTO0_ENABLE, 1); + return true; + } + + /*ATOMBIOS expects pixel rate adjusted by deep color ratio)*/ + bp_pc_params.controller_id = pix_clk_params->controller_id; + bp_pc_params.pll_id = clock_source->id; + bp_pc_params.target_pixel_clock_100hz = pll_settings->actual_pix_clk_100hz; + bp_pc_params.encoder_object_id = pix_clk_params->encoder_object_id; + bp_pc_params.signal_type = pix_clk_params->signal_type; + + // Make sure we send the correct color depth to DMUB for HDMI + if (pix_clk_params->signal_type == SIGNAL_TYPE_HDMI_TYPE_A) { + switch (pix_clk_params->color_depth) { + case COLOR_DEPTH_888: + bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24; + break; + case COLOR_DEPTH_101010: + bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_30; + break; + case COLOR_DEPTH_121212: + bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_36; + break; + case COLOR_DEPTH_161616: + bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_48; + break; + default: + bp_pc_colour_depth = TRANSMITTER_COLOR_DEPTH_24; + break; + } + bp_pc_params.color_depth = bp_pc_colour_depth; + } + + if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO) { + bp_pc_params.flags.SET_GENLOCK_REF_DIV_SRC = + pll_settings->use_external_clk; + bp_pc_params.flags.SET_XTALIN_REF_SRC = + !pll_settings->use_external_clk; + if (pix_clk_params->flags.SUPPORT_YCBCR420) { + bp_pc_params.flags.SUPPORT_YUV_420 = 1; + } + } + if (clk_src->bios->funcs->set_pixel_clock( + clk_src->bios, &bp_pc_params) != BP_RESULT_OK) + return false; + /* Resync deep color DTO */ + if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO) + dce112_program_pixel_clk_resync(clk_src, + pix_clk_params->signal_type, + pix_clk_params->color_depth, + pix_clk_params->flags.SUPPORT_YCBCR420); + } + + return true; +} +#endif static bool dce110_clock_source_power_down( struct clock_source *clk_src) @@ -1205,6 +1297,13 @@ static const struct clock_source_funcs dcn3_clk_src_funcs = { .get_pix_clk_dividers = dcn3_get_pix_clk_dividers, .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz }; + +static const struct clock_source_funcs dcn31_clk_src_funcs = { + .cs_power_down = dce110_clock_source_power_down, + .program_pix_clk = dcn31_program_pix_clk, + .get_pix_clk_dividers = dcn3_get_pix_clk_dividers, + .get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz +}; #endif /*****************************************/ /* Constructor */ @@ -1610,6 +1709,24 @@ bool dcn3_clk_src_construct( #endif #if defined(CONFIG_DRM_AMD_DC_DCN) +bool dcn31_clk_src_construct( + struct dce110_clk_src *clk_src, + struct dc_context *ctx, + struct dc_bios *bios, + enum clock_source_id id, + const struct dce110_clk_src_regs *regs, + const struct dce110_clk_src_shift *cs_shift, + const struct dce110_clk_src_mask *cs_mask) +{ + bool ret = dce112_clk_src_construct(clk_src, ctx, bios, id, regs, cs_shift, cs_mask); + + clk_src->base.funcs = &dcn31_clk_src_funcs; + + return ret; +} +#endif + +#if defined(CONFIG_DRM_AMD_DC_DCN) bool dcn301_clk_src_construct( struct dce110_clk_src *clk_src, struct dc_context *ctx, |