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Commit 9cb84ab0 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon: check firmware overrides for mclk/sclk ss 



Check the overrides in the firmware info table before
enabling spread spectrum on the engine or memory clocks.

Some boards may have valid spread spectrum tables, but
shouldn't necessarily have it enabled.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bc01a8c7

drivers/gpu/drm/radeon/radeon_atombios.c

+9 −0
Original line number Original line Diff line number Diff line
@@ -1480,6 +1480,15 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, 
	uint8_t frev, crev;

	uint8_t frev, crev;

	int i, num_indices;

	int i, num_indices;





	if (id == ASIC_INTERNAL_MEMORY_SS) {

		if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))

			return false;

	}

	if (id == ASIC_INTERNAL_ENGINE_SS) {

		if (!(rdev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))

			return false;

	}



	memset(ss, 0, sizeof(struct radeon_atom_ss));

	memset(ss, 0, sizeof(struct radeon_atom_ss));

	if (atom_parse_data_header(mode_info->atom_context, index, &size,

	if (atom_parse_data_header(mode_info->atom_context, index, &size,

				   &frev, &crev, &data_offset)) {

				   &frev, &crev, &data_offset)) {