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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++) { |