[Intel-gfx] [PATCH] drm/i915/dp: Fix incorrect test parameter for DP link layer compliance

[Lee Shawn C]

Run intel_dp_compliance would failed at video pattern related
test case sometimes. DP test applet read incorrect test type
from kernel to cause this symptom. Add a "\n" (newline) in
seq_printf() then DP test applet will get proper parameters.

Fixes: eb3394faeb97 ("drm/i915: Add debugfs test control
files for Displayport compliance testing")

v2: Add "Fixes" comment.

Cc: Manasi Navare <manasi.d.navare at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: Daniel Vetter <daniel.vetter at intel.com>
Cc: Ville Syrjala <ville.syrjala at linux.intel.com>
Cc: Cooper Chiou <cooper.chiou at intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0ac98e39eb75..74180158a909 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3167,7 +3167,7 @@ static int i915_displayport_test_data_show(struct seq_file *m, void *data)
 			intel_dp = enc_to_intel_dp(&encoder->base);
 			if (intel_dp->compliance.test_type ==
 			    DP_TEST_LINK_EDID_READ)
-				seq_printf(m, "%lx",
+				seq_printf(m, "%lx\n",
 					   intel_dp->compliance.test_data.edid);
 			else if (intel_dp->compliance.test_type ==
 				 DP_TEST_LINK_VIDEO_PATTERN) {
@@ -3209,7 +3209,7 @@ static int i915_displayport_test_type_show(struct seq_file *m, void *data)
 
 		if (encoder && connector->status == connector_status_connected) {
 			intel_dp = enc_to_intel_dp(&encoder->base);
-			seq_printf(m, "%02lx", intel_dp->compliance.test_type);
+			seq_printf(m, "%02lx\n", intel_dp->compliance.test_type);
 		} else
 			seq_puts(m, "0");
 	}
-- 
2.17.1