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drm/amd/display: Convert 10kHz clks from PPLib into kHz for Vega

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The driver is expecting clock frequency in kHz, while SMU returns
the values in 10kHz, which causes the bandwidth validation to fail

4.18 has the faulty clock assignment in pp_to_dc_clock_levels_with_latency
only, which is only used by Vega. Make sure we multiply these values
by 10 here, as we do for other ASICs as powerplay assigned them
wrong. 4.19 has the proper fix in powerplay.

v2: Add Fixes tag
v3: Fixes -> Bugzilla, with simplified link

Bugzilla: https://bugs.freedesktop.org/107082

Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2018-07-12 10:23:21 -04:00 committed by Alex Deucher
parent 9d4a0d4cdc
commit d89d01f223
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c
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@ -255,8 +255,9 @@ static void pp_to_dc_clock_levels_with_latency(
DC_DECODE_PP_CLOCK_TYPE(dc_clk_type));
for (i = 0; i < clk_level_info->num_levels; i++) {
DRM_DEBUG("DM_PPLIB:\t %d\n", pp_clks->data[i].clocks_in_khz);
clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz;
DRM_DEBUG("DM_PPLIB:\t %d in 10kHz\n", pp_clks->data[i].clocks_in_khz);
/* translate 10kHz to kHz */
clk_level_info->data[i].clocks_in_khz = pp_clks->data[i].clocks_in_khz * 10;
clk_level_info->data[i].latency_in_us = pp_clks->data[i].latency_in_us;
}
}