ucDCEClkSrc 547 drivers/gpu/drm/amd/amdgpu/atombios_crtc.c args.v2_1.asParam.ucDCEClkSrc = clk_src; ucDCEClkSrc 2323 drivers/gpu/drm/amd/display/dc/bios/command_table.c params.asParam.ucDCEClkSrc = atom_pll_id; ucDCEClkSrc 2078 drivers/gpu/drm/amd/include/atombios.h UCHAR ucDCEClkSrc; // ATOM_PLL0 or ATOM_GCK_DFS or ATOM_FCH_CLK or ATOM_COMBOPHY_PLLx