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authorEvan Quan <evan.quan@amd.com>2023-06-15 06:03:49 +0300
committerAlex Deucher <alexander.deucher@amd.com>2023-06-23 22:46:22 +0300
commit1af3d0a8e8b8db855ee3c98d210f8ee01b2bb80f (patch)
tree1d668ccba4d2b6014071165fda79a62136ce4c3c
parent111c1813a1ab70d5422594aec0fd5a5ba914c25e (diff)
downloadlinux-1af3d0a8e8b8db855ee3c98d210f8ee01b2bb80f.tar.xz
drm/amd/pm: update the LC_L1_INACTIVITY setting to address possible noise issue
It is proved that insufficient LC_L1_INACTIVITY setting can cause audio noise on some platform. With the LC_L1_INACTIVITY increased to 4ms, the issue can be resolved. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c
index 7ba47fc1917b..4038455d7998 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c
@@ -345,7 +345,7 @@ static void nbio_v2_3_init_registers(struct amdgpu_device *adev)
}
#define NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT 0x00000000 // off by default, no gains over L1
-#define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x00000009 // 1=1us, 9=1ms
+#define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x0000000A // 1=1us, 9=1ms, 10=4ms
#define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 400ms
static void nbio_v2_3_enable_aspm(struct amdgpu_device *adev,