drm/amd/powerply: fix power reading on Fiji
Power value is wrong reported by customer. It is a regression by
commit a7c7bc4c0c
Author: Rex Zhu <Rex.Zhu@amd.com>
Date: Mon Mar 27 15:32:59 2017 +0800
drm/amd/powerplay: reduce sample period time
for power readings.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The theoretical sampling period is from 50ms to 4sec, original 2sec
is long but correct, and 20ms is too short. change it to more
reasonable 200ms.
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -3374,7 +3374,8 @@ static int smu7_get_gpu_power(struct pp_hwmgr *hwmgr,
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"Failed to start pm status log!",
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return -1);
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msleep_interruptible(20);
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/* Sampling period from 50ms to 4sec */
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msleep_interruptible(200);
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PP_ASSERT_WITH_CODE(!smum_send_msg_to_smc(hwmgr,
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PPSMC_MSG_PmStatusLogSample),
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