From: Ville Syrjälä <[email protected]>

Indicate which pipe signalled the spurious DE PIPE interrupt.
Might help with debugging a bit if we know where the interrupt
is supposedly coming from.

Signed-off-by: Ville Syrjälä <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_display_irq.c | 3 ++-
 1 file changed, 2 insertions(+), 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 3e73832e5e81..a3261c7aad72 100644
--- a/drivers/gpu/drm/i915/display/intel_display_irq.c
+++ b/drivers/gpu/drm/i915/display/intel_display_irq.c
@@ -1418,7 +1418,8 @@ void gen8_de_irq_handler(struct intel_display *display, 
u32 master_ctl)
                iir = intel_de_read(display, GEN8_DE_PIPE_IIR(pipe));
                if (!iir) {
                        drm_err_ratelimited(display->drm,
-                                           "The master control interrupt lied 
(DE PIPE)!\n");
+                                           "The master control interrupt lied 
(DE PIPE %c)!\n",
+                                           pipe_name(pipe));
                        continue;
                }
 
-- 
2.49.0

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