Since msleep(2) can sleep up to 20ms anyway, make this explicit by using
usleep_range(2000, 20000).

Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
 drivers/staging/imx-drm/ipu-v3/ipu-dc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c 
b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
index d0e3bc3..d5de8bb 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
@@ -262,7 +262,7 @@ void ipu_dc_disable_channel(struct ipu_dc *dc)
 
        /* Wait for DC triple buffer to empty */
        while ((readl(priv->dc_reg + DC_STAT) & val) != val) {
-               msleep(2);
+               usleep_range(2000, 20000);
                timeout -= 2;
                if (timeout <= 0)
                        break;
-- 
1.8.5.3

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