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drm/amd/display: Modify comments to match the code 

[Why]
This line of code was modified. However, comments
remained unchanged. As a result, comments and code are
mismatching.

[How]
Modifying comments to reflect code. At the same time,
explaining why the value was changed from 200ms to
3000ms.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhan liu 2019-11-25 17:25:18 -05:00 committed by Alex Deucher
parent be3e73ea7d
commit adc8139e68
1 changed files with 6 additions and 1 deletions
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7
drivers/gpu/drm/amd/display/dc/dc_helper.c
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@ -485,7 +485,12 @@ void generic_reg_wait(const struct dc_context *ctx,
return;
}
/* something is terribly wrong if time out is > 200ms. (5Hz) */
/*
* Something is terribly wrong if time out is > 3000ms.
* 3000ms is the maximum time needed for SMU to pass values back.
* This value comes from experiments.
*
*/
ASSERT(delay_between_poll_us * time_out_num_tries <= 3000000);
for (i = 0; i <= time_out_num_tries; i++) {