[Intel-gfx] [PATCH] drm/i915/display: Add forward declaration for struct seq_file

[Chaitanya Kumar Borah]

With change [1], visibility of struct seq_file is lost in
intel_display_power.h leading to build errors. Add forward
declaration.

[1] ef104443bffa ("procfs: consolidate arch_report_meminfo declaration")

v2: Use forward declaration instead of headerfile inclusion [Jani]

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display_power.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h
index be1a87bde0c9..0ba268e566b0 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power.h
@@ -16,6 +16,7 @@ enum port;
 struct drm_i915_private;
 struct i915_power_well;
 struct intel_encoder;
+struct seq_file;
 
 /*
  * Keep the pipe, transcoder, port (DDI_LANES,DDI_IO,AUX) domain instances
-- 
2.25.1