[Intel-gfx] [PATCH v2] drm/i915/irq: Improve error logging for unexpected DE Misc interrupts

[Rahul Rameshbabu]

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 at intel.com>
Signed-off-by: Rahul Rameshbabu <sergeantsagara at protonmail.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>
---

Notes:
    Changes:
    
      v1->v2:
        - Change format specifier to pad minimum width
        - https://lore.kernel.org/intel-gfx/20231123175638.27650-1-sergeantsagara@protonmail.com/

 drivers/gpu/drm/i915/display/intel_display_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_irq.c b/drivers/gpu/drm/i915/display/intel_display_irq.c
index bff4a76310c0..7c6f20cd951e 100644
--- 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,
-- 
2.40.1