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drm/radeon: workaround a hw bug in bonaire pcie dpm 

Some boards get stuck in pcie x1 otherwise.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2014-11-07 13:19:17 -05:00
parent 127e056e2a
commit 36654dd4b9
1 changed files with 8 additions and 3 deletions
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11
drivers/gpu/drm/radeon/ci_dpm.c
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@ -2988,9 +2988,14 @@ static int ci_setup_default_pcie_tables(struct radeon_device *rdev)
&pi->dpm_table.pcie_speed_table,
SMU7_MAX_LEVELS_LINK);
ci_setup_pcie_table_entry(&pi->dpm_table.pcie_speed_table, 0,
pi->pcie_gen_powersaving.min,
pi->pcie_lane_powersaving.min);
if (rdev->family == CHIP_BONAIRE)
ci_setup_pcie_table_entry(&pi->dpm_table.pcie_speed_table, 0,
pi->pcie_gen_powersaving.min,
pi->pcie_lane_powersaving.max);
else
ci_setup_pcie_table_entry(&pi->dpm_table.pcie_speed_table, 0,
pi->pcie_gen_powersaving.min,
pi->pcie_lane_powersaving.min);
ci_setup_pcie_table_entry(&pi->dpm_table.pcie_speed_table, 1,
pi->pcie_gen_performance.min,
pi->pcie_lane_performance.min);