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You wrote the patch, it should be signed-off-by you, not me 🙂  E.g.,

Signed-off-by: Charles Sun <[email protected]>
________________________________
From: Sun, Charles <[email protected]>
Sent: Wednesday, April 7, 2021 11:32 PM
To: [email protected] <[email protected]>
Cc: Deucher, Alexander <[email protected]>; Liu, Zhan 
<[email protected]>; Su, Jinzhou (Joe) <[email protected]>; Sun, Charles 
<[email protected]>; Deucher, Alexander <[email protected]>
Subject: [0001-increase-time-out-2s-send-msg-to-smu.patch] drm/amd/pm: increase 
time out value when sending msg to SMU

when do S3 stress, low rate that PowerUpVcn message will get response
more than 1s, so here increase the timeout to 2s

Signed-off-by: Alex Deucher <[email protected]>
---
 drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c 
b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
index b725f263092b..dc7d2e71aa6f 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c
@@ -79,7 +79,7 @@ static void smu_cmn_read_arg(struct smu_context *smu,
 int smu_cmn_wait_for_response(struct smu_context *smu)
 {
         struct amdgpu_device *adev = smu->adev;
-       uint32_t cur_value, i, timeout = adev->usec_timeout * 10;
+       uint32_t cur_value, i, timeout = adev->usec_timeout * 20;

         for (i = 0; i < timeout; i++) {
                 cur_value = RREG32_SOC15(MP1, 0, mmMP1_SMN_C2PMSG_90);
--
2.25.1

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