gpu: nvgpu: fix recursive include from clk.h

Fix recursion in header include sequence :
gk20a.h -> clk.h -> gk20a.h
by removing gk20a.h include from clk/clk.h

Fix the compile time error by forward declaring
struct gk20a

Coverity id : 2567917
Bug 200291879

Change-Id: I8fc3a8787dae91ae1a070c63bae6550596734603
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1495904
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/gpu/nvgpu/clk/clk.h b/drivers/gpu/nvgpu/clk/clk.h
index b173a09e..0dd7bf77 100644
--- a/drivers/gpu/nvgpu/clk/clk.h
+++ b/drivers/gpu/nvgpu/clk/clk.h
@@ -1,7 +1,7 @@
 /*
  * general clock structures & definitions
  *
- * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2017, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -22,12 +22,13 @@
 #include "clk_vf_point.h"
 #include "clk_mclk.h"
 #include "clk_freq_controller.h"
-#include "gk20a/gk20a.h"
 
 #define NV_PERF_DOMAIN_4X_CLOCK_DOMAIN_SKIP 0x10
 #define NV_PERF_DOMAIN_4X_CLOCK_DOMAIN_MASK 0x1F
 #define NV_PERF_DOMAIN_4X_CLOCK_DOMAIN_SHIFT 0
 
+struct gk20a;
+
 /* clock related defines for GPUs supporting clock control from pmu*/
 struct clk_pmupstate {
         struct avfsvinobjs avfs_vinobjs;