gpu: nvgpu: Make use of reset controller optional

Reset controller is not enabled in all builds, so make its use
optional.

Change-Id: I88df11d0aae0552eb4c7f3acee5be70885ea2901
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1028348

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index 84b3fcaf..6bffed9e 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -59,8 +59,10 @@ struct gk20a_platform {
         struct clk *clk[3];
         int num_clks;
 
+#ifdef CONFIG_RESET_CONTROLLER
         /* Reset control for device */
         struct reset_control *reset_control;
+#endif
 
         /* Delay before rail gated */
         int railgate_delay;