drm/amdgpu/display: use msleep rather than udelay for long delays
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 20 Jan 2022 17:57:33 +0000 (12:57 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 25 Jan 2022 23:00:33 +0000 (18:00 -0500)
Some architectures (e.g., ARM) throw an compilation error if the
udelay is too long.  In general udelays of longer than 2000us are
not recommended on any architecture.  Switch to msleep in these
cases.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c

index 5831eef..6f69294 100644 (file)
@@ -6935,7 +6935,7 @@ bool dpcd_write_128b_132b_sst_payload_allocation_table(
                        }
                }
                retries++;
-               udelay(5000);
+               msleep(5);
        }
 
        if (!result && retries == max_retries) {
@@ -6987,7 +6987,7 @@ bool dpcd_poll_for_allocation_change_trigger(struct dc_link *link)
                        break;
                }
 
-               udelay(5000);
+               msleep(5);
        }
 
        if (result == ACT_FAILED) {