From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
It's much easier to figure out why the SDVO encoder refuses to cooperate
if we can see what status we got back.
v2: Zero initialize only the first character, not the whole buffer
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> #v1
---
drivers/gpu/drm/i915/intel_sdvo.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 937f9abf8a0a..358ee0065a7e 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -518,6 +518,7 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
#define BUF_LEN 256
char buffer[BUF_LEN];
+ buffer[0] = '\0';
/*
* The documentation states that all commands will be
@@ -581,7 +582,8 @@ static bool intel_sdvo_read_response(struct intel_sdvo *intel_sdvo,
return true;
log_fail:
- DRM_DEBUG_KMS("%s: R: ... failed\n", SDVO_NAME(intel_sdvo));
+ DRM_DEBUG_KMS("%s: R: ... failed %s\n",
+ SDVO_NAME(intel_sdvo), buffer);
return false;
}
--
2.21.0
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