drm/i915/irq: Improve error logging for unexpected DE Misc interrupts

Dump the iir value in hex when the interrupt is unexpected.

Link: https://gitlab.freedesktop.org/drm/intel/-/issues/9652#note_2178501
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rahul Rameshbabu <sergeantsagara@protonmail.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231126214142.102106-1-sergeantsagara@protonmail.com

diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c
index 5a3e10e73e59eb9ce10c96005876b8dccac183a4..f8ed53f30b2e44ec732876c7e1a758277aff51ee 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_display_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.c
@@ -896,7 +896,7 @@ gen8_de_misc_irq_handler(struct drm_i915_private *dev_priv, u32 iir)
        }
 
        if (!found)
-               drm_err(&dev_priv->drm, "Unexpected DE Misc interrupt\n");
+               drm_err(&dev_priv->drm, "Unexpected DE Misc interrupt: 0x%08x\n", iir);
 }
 
 static void gen11_dsi_te_interrupt_handler(struct drm_i915_private *dev_priv,