[PATCH] drm/amd/display: replace use of msleep(<20) with usleep_range for better accuracy

[James Flowers]

msleep < 20ms will often sleep for ~20ms (according to 
Documentation/timers/timers-howto.rst).

Signed-off-by: James Flowers <bold.zone2...@fastmail.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 2cd35392e2da..2d225735602b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -682,7 +682,7 @@ static bool execute_synaptics_rc_command(struct drm_dp_aux 
*aux,
                if (rc_cmd == cmd)
                        // active is 0
                        break;
-               msleep(10);
+               usleep_range(10000, 10200);
        }
 
        // read rc result
-- 
2.49.0