linux-kernel - [PATCH] drm: change connector disconnected debug message to an error

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Date:   Wed,  1 Feb 2017 19:59:04 -0700
From:   Shuah Khan <shuahkh@....samsung.com>
To:     daniel.vetter@...el.com, jani.nikula@...ux.intel.com,
        seanpaul@...omium.org, airlied@...ux.ie
Cc:     Shuah Khan <shuahkh@....samsung.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm: change connector disconnected debug message to an error

Change drm_helper_probe_single_connector_modes() to print an error to
report connector disconnected status instead of a debug message.

When this condition occurs, application doesn't know the real error and
reports it as driver lacking support for mode setting. Change it to an
error to make it easier to debug.

Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
 drivers/gpu/drm/drm_probe_helper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index ac953f0..6472b7f 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -282,8 +282,8 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
 	dev->mode_config.poll_running = drm_kms_helper_poll;
 
 	if (connector->status == connector_status_disconnected) {
-		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
-			connector->base.id, connector->name);
+		DRM_ERROR("[CONNECTOR:%d:%s] disconnected\n",
+			  connector->base.id, connector->name);
 		drm_mode_connector_update_edid_property(connector, NULL);
 		verbose_prune = false;
 		goto prune;
-- 
2.7.4