[PATCH 5.13 024/113] drm/i915/dp: Drop redundant debug print

From: Greg Kroah-Hartman
Date: Wed Sep 01 2021 - 08:50:19 EST


From: Swati Sharma <swati2.sharma@xxxxxxxxx>

commit 71de496cc489b6bae2f51f89da7f28849bf2836e upstream.

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().

v2: -Added fixes tag (Ankit)
v3: -Fixed build error (CI)

Fixes: 9488a030ac91 ("drm/i915: Add support for enabling link status and recovery")
Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
Cc: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
Cc: Uma Shankar <uma.shankar@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.12+
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Swati Sharma <swati2.sharma@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210812131107.5531-1-swati2.sharma@xxxxxxxxx
(cherry picked from commit b6dfa416172939edaa46a5a647457b94c6d94119)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dp.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3833,23 +3833,18 @@ static void intel_dp_check_device_servic

static void intel_dp_check_link_service_irq(struct intel_dp *intel_dp)
{
- struct drm_i915_private *i915 = dp_to_i915(intel_dp);
u8 val;

if (intel_dp->dpcd[DP_DPCD_REV] < 0x11)
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);