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| author | Aric Cyr <aric.cyr@amd.com> | 2021-06-21 12:01:45 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-08 15:16:44 -0400 |
| commit | babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6 (patch) | |
| tree | 4cd9978ba35f8ecf5c430b40084160a4831ed3f8 /drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301 | |
| parent | cc590fd27190fec00bf9ccc4e349146394e7fa87 (diff) | |
| download | linux-stable-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.tar.gz linux-stable-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.tar.bz2 linux-stable-babbdf5b3a8b7c4f5e169a7a3300d2a743c10ac6.zip | |
drm/amd/display: Round KHz up when calculating clock requests
[Why]
When requesting clocks from SMU which takes MHz inputs, DC will round
down KHz when converting to MHz, thus potentially requesting too low a
clock value.
[How]
Round up (ceil) when converting KHz to MHz for clock requests to SMU.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c index 07774fa2c2cf..6ea642615854 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn301/dcn301_smu.c @@ -133,7 +133,7 @@ int dcn301_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispc actual_dispclk_set_mhz = dcn301_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetDispclkFreq, - requested_dispclk_khz / 1000); + khz_to_mhz_ceil(requested_dispclk_khz)); return actual_dispclk_set_mhz * 1000; } @@ -147,7 +147,7 @@ int dcn301_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr) actual_dprefclk_set_mhz = dcn301_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetDprefclkFreq, - clk_mgr->base.dprefclk_khz / 1000); + khz_to_mhz_ceil(clk_mgr->base.dprefclk_khz)); /* TODO: add code for programing DP DTO, currently this is down by command table */ @@ -163,7 +163,7 @@ int dcn301_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int request actual_dcfclk_set_mhz = dcn301_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetHardMinDcfclkByFreq, - requested_dcfclk_khz / 1000); + khz_to_mhz_ceil(requested_dcfclk_khz)); return actual_dcfclk_set_mhz * 1000; } @@ -177,7 +177,7 @@ int dcn301_smu_set_min_deep_sleep_dcfclk(struct clk_mgr_internal *clk_mgr, int r actual_min_ds_dcfclk_mhz = dcn301_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetMinDeepSleepDcfclk, - requested_min_ds_dcfclk_khz / 1000); + khz_to_mhz_ceil(requested_min_ds_dcfclk_khz)); return actual_min_ds_dcfclk_mhz * 1000; } @@ -191,7 +191,7 @@ int dcn301_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_kh actual_dppclk_set_mhz = dcn301_smu_send_msg_with_param( clk_mgr, VBIOSSMC_MSG_SetDppclkFreq, - requested_dpp_khz / 1000); + khz_to_mhz_ceil(requested_dpp_khz)); return actual_dppclk_set_mhz * 1000; } |