gpu: nvgpu: cleanup return types for MISRA 10.3

This is a big cleanup of return types across a number of modules in the
nvgpu driver. Many functions were returning u32 but using negative
return codes. This is a MISRA 10.3 violation by assigning signed values
to a u32.

JIRA NVGPU-647

Change-Id: I59ee66706321f5b5b1a07ed8c24b81583e9ba28c
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1810743
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/gpu/nvgpu/clk/clk_fll.h b/drivers/gpu/nvgpu/clk/clk_fll.h
index 79ecf5e1..7f7cad97 100644
--- a/drivers/gpu/nvgpu/clk/clk_fll.h
+++ b/drivers/gpu/nvgpu/clk/clk_fll.h
@@ -28,8 +28,8 @@
 #include "boardobj/boardobjgrpmask.h"
 
 /*data and function definition to talk to driver*/
-u32 clk_fll_sw_setup(struct gk20a *g);
-u32 clk_fll_pmu_setup(struct gk20a *g);
+int clk_fll_sw_setup(struct gk20a *g);
+int clk_fll_pmu_setup(struct gk20a *g);
 
 struct avfsfllobjs {
         struct boardobjgrp_e32 super;
@@ -79,4 +79,3 @@ u32 nvgpu_clk_get_vbios_clk_domain_gp10x( u32 vbios_domain);
         (pclk->avfs_fllobjs.lut_step_size_uv)
 
 #endif
-