[PATCH] drm/amd/powerplay: skip invalid msg when smu set mp1 state

[Likun Gao]

From: Likun Gao <Likun.Gao at amd.com>

Some asic may not support for some message of set mp1 state.
If the return value of smu_send_smc_msg is -EINVAL, that means it failed
to send msg to smc as it can not map an valid message for the ASIC. And
with that case, smu_set_mp1_state should be skipped as those ASIC was in
fact do not support for that.

Signed-off-by: Likun Gao <Likun.Gao at amd.com>
Change-Id: I31b40b87532a1d7549b26155d4ec8145b5e3f101
---
 drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index b197dcaed064..237d8ab8b40d 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -1590,6 +1590,9 @@ int smu_set_mp1_state(struct smu_context *smu,
 	}
 
 	ret = smu_send_smc_msg(smu, msg, NULL);
+	/* some asics may not support those messages */
+	if (ret == -EINVAL)
+		ret = 0;
 	if (ret)
 		dev_err(smu->adev->dev, "[PrepareMp1] Failed!\n");
 
-- 
2.25.1