From cb5da84a5f080bb02164de2119acaa14656ac057 Mon Sep 17 00:00:00 2001 From: Kevin Wang Date: Wed, 11 Aug 2021 16:03:40 +0800 Subject: [PATCH] drm/amd/pm: change return value in aldebaran_get_power_limit() v1: 1. change return value to avoid smu driver probe fails when FEATURE_PPT is not enabled. 2. if FEATURE_PPT is not enabled, set power limit value to 0. v2: instead dev_err with dev_warn Signed-off-by: Kevin Wang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c index de4f0c4..7510588 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c @@ -1193,8 +1193,19 @@ static int aldebaran_get_power_limit(struct smu_context *smu, uint32_t power_limit = 0; int ret; - if (!smu_cmn_feature_is_enabled(smu, SMU_FEATURE_PPT_BIT)) - return -EINVAL; + if (!smu_cmn_feature_is_enabled(smu, SMU_FEATURE_PPT_BIT)) { + if (current_power_limit) + *current_power_limit = 0; + if (default_power_limit) + *default_power_limit = 0; + if (max_power_limit) + *max_power_limit = 0; + + dev_warn(smu->adev->dev, + "PPT feature is not enabled, power values can't be fetched."); + + return 0; + } /* Valid power data is available only from primary die. * For secondary die show the value as 0. -- 2.7.4