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drm/amd/powerplay: allow dc request uclk change 

when dc set mode or color format in frame buffer
change, it may request clock changes, like dispclk,
dcfclk, uclk. after smu get clock requests, smu
will make decision.

Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
hersen wu 2019-05-29 23:28:55 -05:00 committed by Alex Deucher
parent 576851345b
commit 382fb77891
1 changed files with 7 additions and 1 deletions
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8
drivers/gpu/drm/amd/powerplay/smu_v11_0.c
View File

@ -1275,7 +1275,8 @@ smu_v11_0_display_clock_voltage_request(struct smu_context *smu,
if (!smu->pm_enabled)
return -EINVAL;
if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_DCEFCLK_BIT)) {
if (smu_feature_is_enabled(smu, SMU_FEATURE_DPM_DCEFCLK_BIT) ||
smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UCLK_BIT)) {
switch (clk_type) {
case amd_pp_dcef_clock:
clk_select = SMU_DCEFCLK;
@ -1289,6 +1290,9 @@ smu_v11_0_display_clock_voltage_request(struct smu_context *smu,
case amd_pp_phy_clock:
clk_select = SMU_PHYCLK;
break;
case amd_pp_mem_clock:
clk_select = SMU_UCLK;
break;
default:
pr_info("[%s] Invalid Clock Type!", __func__);
ret = -EINVAL;
@ -1298,8 +1302,10 @@ smu_v11_0_display_clock_voltage_request(struct smu_context *smu,
if (ret)
goto failed;
mutex_lock(&smu->mutex);
ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMinByFreq,
(smu_clk_get_index(smu, clk_select) << 16) | clk_freq);
mutex_unlock(&smu->mutex);
}
failed: