drm/bridge: tc358767: Simplify tc_aux_wait_busy()

We never pass anything but 100 as timeout_ms to tc_aux_wait_busy(), so
we may as well hardcode that value and simplify function's signature.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Cory Tusar <cory.tusar@zii.aero>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190619052716.16831-13-andrew.smirnov@gmail.com

drivers/gpu/drm/bridge/tc358767.c

@@ -283,10 +283,9 @@ static inline int tc_poll_timeout(struct tc_data *tc, unsigned int addr,
 					sleep_us, timeout_us);
 }
 
-static int tc_aux_wait_busy(struct tc_data *tc, unsigned int timeout_ms)
+static int tc_aux_wait_busy(struct tc_data *tc)
 {
-	return tc_poll_timeout(tc, DP0_AUXSTATUS, AUX_BUSY, 0,
-			       1000, 1000 * timeout_ms);
+	return tc_poll_timeout(tc, DP0_AUXSTATUS, AUX_BUSY, 0, 1000, 100000);
 }
 
 static int tc_aux_write_data(struct tc_data *tc, const void *data,
@@ -330,7 +329,7 @@ static ssize_t tc_aux_transfer(struct drm_dp_aux *aux,
 	if (size == 0)
 		return 0;
 
-	ret = tc_aux_wait_busy(tc, 100);
+	ret = tc_aux_wait_busy(tc);
 	if (ret)
 		return ret;
 
@@ -358,7 +357,7 @@ static ssize_t tc_aux_transfer(struct drm_dp_aux *aux,
 	if (ret)
 		return ret;
 
-	ret = tc_aux_wait_busy(tc, 100);
+	ret = tc_aux_wait_busy(tc);
 	if (ret)
 		return ret;