The Cadence MHDP8546 DP bridge driver gets the PHY bus_width attribute
(holding number of lanes) directly, but doing this will no longer be
possible after the definition of struct phy is hidden from consumers.

Use the phy_get_bus_width() API function designed specifically for
consumers.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
---
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>

v1->v2: none
---
 drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
index ed7ed82ddb64..e3f8a281f147 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c
@@ -1304,7 +1304,7 @@ static void cdns_mhdp_fill_host_caps(struct cdns_mhdp_device *mhdp)
 
 	/* Get source capabilities based on PHY attributes */
 
-	mhdp->host.lanes_cnt = mhdp->phy->attrs.bus_width;
+	mhdp->host.lanes_cnt = phy_get_bus_width(mhdp->phy);
 	if (!mhdp->host.lanes_cnt)
 		mhdp->host.lanes_cnt = 4;
 
-- 
2.43.0