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 | 31 |
1 files changed, 31 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 bd4524ef3a37..142b3a01c204 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 @@ -586,6 +586,9 @@ static uint32_t dce110_get_pix_clk_dividers( break; case DCE_VERSION_11_2: case DCE_VERSION_12_0: +#if defined(CONFIG_DRM_AMD_DC_DCN1_0) + case DCN_VERSION_1_0: +#endif dce112_get_pix_clk_dividers_helper(clk_src, pll_settings, pix_clk_params); break; @@ -815,6 +818,31 @@ static bool dce110_program_pix_clk( struct dce110_clk_src *clk_src = TO_DCE110_CLK_SRC(clock_source); struct bp_pixel_clock_parameters bp_pc_params = {0}; +#if defined(CONFIG_DRM_AMD_DC_DCN1_0) + 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_kHz = 600000; + /* DPREF clock from FPGA TODO: Does FPGA have this value? */ + unsigned clock_kHz = pll_settings->actual_pix_clk; + + /* For faster simulation, if mode pixe clock less than 290MHz, + * pixel clock can be hard coded to 290Mhz. For 4K mode, pixel clock + * is greater than 500Mhz, need real pixel clock + * clock_kHz = 290000; + */ + /* TODO: un-hardcode when we can set display clock properly*/ + /*clock_kHz = pix_clk_params->requested_pix_clk;*/ + clock_kHz = 290000; + + /* Set DTO values: phase = target clock, modulo = reference clock */ + REG_WRITE(PHASE[inst], clock_kHz); + REG_WRITE(MODULO[inst], dp_dto_ref_kHz); + + /* Enable DTO */ + REG_UPDATE(PIXEL_RATE_CNTL[inst], DP_DTO0_ENABLE, 1); + return true; + } +#endif /* First disable SS * ATOMBIOS will enable by default SS on PLL for DP, * do not disable it here @@ -870,6 +898,9 @@ static bool dce110_program_pix_clk( break; case DCE_VERSION_11_2: case DCE_VERSION_12_0: +#if defined(CONFIG_DRM_AMD_DC_DCN1_0) + case DCN_VERSION_1_0: +#endif if (clock_source->id != CLOCK_SOURCE_ID_DP_DTO) { bp_pc_params.flags.SET_GENLOCK_REF_DIV_SRC = pll_settings->use_external_clk; |