From: Imre Deak Date: Mon, 24 Oct 2016 16:33:26 +0000 (+0300) Subject: drm/i915/dp: Print only sink or branch specific OUI based on dev type X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5e8966774253778b861d5c0cbdaf66535233c873;p=linux-beck.git drm/i915/dp: Print only sink or branch specific OUI based on dev type There are two separate sets of DPCD registers for the DP OUI - as well as for the device ID and HW/SW revision - based on whether the given DP device is a branch or a sink. Currently we print both branch and sink OUIs, for consistency print only the one that corresponds to the probed device. v2: - Split out this change into a separate patch. (Jani) Cc: Jani Nikula Signed-off-by: Imre Deak Reviewed-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/1477326811-30431-4-git-send-email-imre.deak@intel.com --- diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 5af3907cf672..332dc86a325f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3624,17 +3624,17 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) static void intel_dp_probe_oui(struct intel_dp *intel_dp) { + bool is_branch = drm_dp_is_branch(intel_dp->dpcd); u8 buf[3]; if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) return; - if (drm_dp_dpcd_read(&intel_dp->aux, DP_SINK_OUI, buf, 3) == 3) - DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n", - buf[0], buf[1], buf[2]); - - if (drm_dp_dpcd_read(&intel_dp->aux, DP_BRANCH_OUI, buf, 3) == 3) - DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", + if (drm_dp_dpcd_read(&intel_dp->aux, + is_branch ? DP_BRANCH_OUI : DP_SINK_OUI, + buf, 3) == 3) + DRM_DEBUG_KMS("%s OUI: %02hx%02hx%02hx\n", + is_branch ? "Branch" : "Sink", buf[0], buf[1], buf[2]); }