Re: [PATCH] drm/i915/display: Drop redundant debug print

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On 13-Aug-21 1:16 PM, Jani Nikula wrote:
On Thu, 12 Aug 2021, Swati Sharma <swati2.sharma@xxxxxxxxx> wrote:
drm_dp_dpcd_read/write already has debug error message.
Drop redundant error messages which gives false
status even if correct value is read in drm_dp_dpcd_read().

I guess the only problem is it gets harder to associate the preceding
low level error messages with intel_dp_check_link_service_irq(). *shrug*

Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>


Thanks Jani for the review. Can you please merge?


Fixes: 9488a030ac91 ("drm/i915: Add support for enabling link status and recovery")
Cc: Swati Sharma <swati2.sharma@xxxxxxxxx>
Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Cc: Uma Shankar <uma.shankar@xxxxxxxxx> (v2)
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: "Ville Syrj_l_" <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Cc: "Jos_ Roberto de Souza" <jose.souza@xxxxxxxxx>
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.12+

Link: https://patchwork.freedesktop.org/patch/msgid/20201218103723.30844-12-ankit.k.nautiyal@xxxxxxxxx
Signed-off-by: Swati Sharma <swati2.sharma@xxxxxxxxx>
---
  drivers/gpu/drm/i915/display/intel_dp.c | 8 ++------
  1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index c386ef8eb200..5c84f51ad41d 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3871,16 +3871,12 @@ static void intel_dp_check_link_service_irq(struct intel_dp *intel_dp)
  		return;
if (drm_dp_dpcd_readb(&intel_dp->aux,
-			      DP_LINK_SERVICE_IRQ_VECTOR_ESI0, &val) != 1 || !val) {
-		drm_dbg_kms(&i915->drm, "Error in reading link service irq vector\n");
+			      DP_LINK_SERVICE_IRQ_VECTOR_ESI0, &val) != 1 || !val)
  		return;
-	}
if (drm_dp_dpcd_writeb(&intel_dp->aux,
-			       DP_LINK_SERVICE_IRQ_VECTOR_ESI0, val) != 1) {
-		drm_dbg_kms(&i915->drm, "Error in writing link service irq vector\n");
+			       DP_LINK_SERVICE_IRQ_VECTOR_ESI0, val) != 1)
  		return;
-	}
if (val & HDMI_LINK_STATUS_CHANGED)
  		intel_dp_handle_hdmi_link_status_change(intel_dp);


--
~Swati Sharma



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