Commit f199f71f authored by Jani Nikula's avatar Jani Nikula
Browse files

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: default avatarJani Nikula <jani.nikula@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220104184857.784563-2-jani.nikula@intel.com
parent 55a9c000

drivers/gpu/drm/drm_dp_mst_topology.c

+1 −1
Original line number Diff line number Diff line
@@ -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;