drm/bridge: tc358767: remove unnecessary msleep

For some reason the driver has a msleep(100) after writing to
DP_PHY_CTRL. Toshiba's documentation doesn't suggest any delay is
needed, and I have not seen any issues with the sleep removed.

Drop it, as msleep(100) is a rather big one.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528082747.3631-14-tomi.valkeinen@ti.com

drivers/gpu/drm/bridge/tc358767.c

@@ -874,7 +874,6 @@ static int tc_main_link_enable(struct tc_data *tc)
 	if (tc->link.base.num_lanes == 2)
 		dp_phy_ctrl |= PHY_2LANE;
 	tc_write(DP_PHY_CTRL, dp_phy_ctrl);
-	msleep(100);
 
 	/* PLL setup */
 	tc_write(DP0_PLLCTRL, PLLUPDATE | PLLEN);