drm/i915/dp: Fetch downstream port info if needed during DPCD fetch

v2: Fix parenthesis mismatch, spotted by Jani Nikula

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
[danvet: Fixup merge conflict and MAX_DOWNSTREAM #define as spotted by
Jani.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 351fd7179cd7..79f8ed66574e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -332,6 +332,7 @@ struct intel_hdmi {
 };
 
 #define DP_RECEIVER_CAP_SIZE            0xf
+#define DP_MAX_DOWNSTREAM_PORTS         0x10
 #define DP_LINK_CONFIGURATION_SIZE      9
 
 struct intel_dp {
@@ -346,6 +347,7 @@ struct intel_dp {
         uint8_t link_bw;
         uint8_t lane_count;
         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
+        uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
         struct i2c_adapter adapter;
         struct i2c_algo_dp_aux_data algo;
         bool is_pch_edp;