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From ef3368e610f3ceba51cf84808477098a6d59f162 Mon Sep 17 00:00:00 2001
From: tiancyin <tianci.yin@amd.com>
Date: Mon, 29 Apr 2019 16:56:16 +0800
Subject: [PATCH 2336/2940] drm/amd/powerplay: disable uclk dpm by default
[why]
The uclk dpm feature is not supported by some certain navi10
board like 18202, while supported by some board like 18201.
It causes modprobe failure on 18202 board.
[how]
Disabled this feature by default, it can be enabled by module parameter
uclk_dpm_support=1.
Reviewed-by: Jack Xiao <Jack.Xiao@amd.com>
Signed-off-by: tiancyin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 0ee837df6dd1..9fb894fec3d3 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -273,8 +273,10 @@ navi10_get_allowed_feature_mask(struct smu_context *smu,
| FEATURE_MASK(FEATURE_LED_DISPLAY_BIT)
| FEATURE_MASK(FEATURE_MMHUB_PG_BIT)
| FEATURE_MASK(FEATURE_ATHUB_PG_BIT)
- | FEATURE_MASK(FEATURE_DPM_DCEFCLK_BIT)
- | FEATURE_MASK(FEATURE_DPM_UCLK_BIT)
+ | FEATURE_MASK(FEATURE_DPM_DCEFCLK_BIT);
+
+ if (adev->pm.pp_feature & PP_MCLK_DPM_MASK)
+ *(uint64_t *)feature_mask |= FEATURE_MASK(FEATURE_DPM_UCLK_BIT)
| FEATURE_MASK(FEATURE_MEM_VDDCI_SCALING_BIT)
| FEATURE_MASK(FEATURE_MEM_MVDD_SCALING_BIT);
--
2.17.1
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