From b6cc7a40bf3c68840336d3f61c0aef5ab76dcd64 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 19 Aug 2013 19:06:19 -0400 Subject: [PATCH] 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: Alex Deucher --- drivers/gpu/drm/radeon/radeon_atombios.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 7ba439e9f30f9..4ac5f4027620c 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1480,6 +1480,15 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, uint8_t frev, crev; 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)); if (atom_parse_data_header(mode_info->atom_context, index, &size, &frev, &crev, &data_offset)) { -- 2.39.5