[PATCH 2/2] drm/mst: use DP_GET_SINK_COUNT() for sink count in ESI

Take bit 7 into account when reading sink count from DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0.

Signed-off-by: Jani Nikula jani.nikula@intel.com --- drivers/gpu/drm/drm_dp_mst_topology.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index f3d79eda94bb..ab4372e9fe43 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -4196,7 +4196,7 @@ int drm_dp_mst_hpd_irq(struct drm_dp_mst_topology_mgr *mgr, u8 *esi, bool *handl int ret = 0; int sc; *handled = false; - sc = esi[0] & 0x3f; + sc = DP_GET_SINK_COUNT(esi[0]);

if (sc != mgr->sink_count) { mgr->sink_count = sc;