linux-kernel - [PATCH 4.12 171/196] drm/i915: Make DP-MST connector info work

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Message-Id: <20170725192054.498595964@linuxfoundation.org>
Date:   Tue, 25 Jul 2017 12:22:50 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dhinakaran Pandiyan <dhinakaran.pandiyan@...el.com>,
        Libin Yang <libin.yang@...el.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Jani Nikula <jani.nikula@...el.com>
Subject: [PATCH 4.12 171/196] drm/i915: Make DP-MST connector info work

4.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>

commit 50740024bc393b608f7e391ac35e70f33938dd24 upstream.

Commit 9a148a96fc3a ("drm/i915/debugfs: add dp mst info") adds support
for DP-MST to intel_connector_info, but forgot to remove the early
return for DP-MST.

Remove it, and print out MST connectors directly.

Fixes: 9a148a96fc3a ("drm/i915/debugfs: add dp mst info")
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@...el.com>
Cc: Libin Yang <libin.yang@...el.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170626083349.24389-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@...el.com>
(cherry picked from commit 77d1f615c78a73a04254fa2bff07ee9fa27145d9)
Signed-off-by: Jani Nikula <jani.nikula@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/i915/i915_debugfs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3018,7 +3018,7 @@ static void intel_connector_info(struct
 			   connector->display_info.cea_rev);
 	}
 
-	if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
+	if (!intel_encoder)
 		return;
 
 	switch (connector->connector_type) {