From 9cb84ab0abd1f5af2482387f8ff585dcfa30b9e6 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 7ba439e9f30f..4ac5f4027620 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)) { -- 2.20.1