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 5831eef78fb1d9714489c64c83432094fe8895a0..6f6929435885a572f4368a5d793da4793bc31e66 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) {