ATOM_BIOS_FUNCTION_PANEL_CONTROL 8243 drivers/gpu/drm/amd/include/atombios.h #define ATOM_BIOS_FUNCTION_PANEL_CONTROL 0x82 ATOM_BIOS_FUNCTION_PANEL_CONTROL 6973 drivers/gpu/drm/radeon/atombios.h #define ATOM_BIOS_FUNCTION_PANEL_CONTROL 0x82