diff options
| author | Zhan liu <zhan.liu@amd.com> | 2019-11-26 01:25:18 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-26 22:51:03 +0300 |
| commit | adc8139e687ed58548a92cda541d10c57212cd38 (patch) | |
| tree | 8c6f59205e5ba501697792fe63ce309233ece9b6 /drivers/gpu/drm/amd/display/dc/dc_helper.c | |
| parent | be3e73ea7def13abbb481844aaaa073903e18b03 (diff) | |
| download | linux-adc8139e687ed58548a92cda541d10c57212cd38.tar.xz | |
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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_helper.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_helper.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_helper.c b/drivers/gpu/drm/amd/display/dc/dc_helper.c index 8da4576e2908..e41befa067ce 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_helper.c +++ b/drivers/gpu/drm/amd/display/dc/dc_helper.c @@ -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++) { |