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gpu: nvgpu: clk: fix return type for vflookup()

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This changes the return type for the API fvlookup() from a u32 to an
int. The implementation of the API in vflookup_prob_1x_master() was
already trying to return negative values. This allows users of the API
to properly check the return value.

JIRA NVGPU-1008

Change-Id: Ifb12b5ffbde7fed501e7dfec9bd6a28dcc1b242e
Signed-off-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2001225
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Philip Elcan
2019-01-22 13:22:28 -05:00
committed by mobile promotions
parent 99ed40b7fb
commit 76acbc02bc
2 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/nvgpu/common/pmu/clk/clk_prog.c
View File

@@ -41,7 +41,7 @@ static int vfflatten_prog_1x_master(struct gk20a *g,
struct clk_pmupstate *pclk, struct clk_pmupstate *pclk,
struct clk_prog_1x_master *p1xmaster, struct clk_prog_1x_master *p1xmaster,
u8 clk_domain_idx, u16 *pfreqmaxlastmhz); u8 clk_domain_idx, u16 *pfreqmaxlastmhz);
static u32 vflookup_prog_1x_master(struct gk20a *g, static int vflookup_prog_1x_master(struct gk20a *g,
struct clk_pmupstate *pclk, struct clk_pmupstate *pclk,
struct clk_prog_1x_master *p1xmaster, struct clk_prog_1x_master *p1xmaster,
u8 *slave_clk_domain, u8 *slave_clk_domain,
@@ -1474,7 +1474,7 @@ done:
return status; return status;
} }
static u32 vflookup_prog_1x_master static int vflookup_prog_1x_master
( (
struct gk20a *g, struct gk20a *g,
struct clk_pmupstate *pclk, struct clk_pmupstate *pclk,

4
drivers/gpu/nvgpu/common/pmu/clk/clk_prog.h
View File

@@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2016-2018, NVIDIA CORPORATION. All rights reserved. * Copyright (c) 2016-2019, NVIDIA CORPORATION. All rights reserved.
* *
* Permission is hereby granted, free of charge, to any person obtaining a * Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"), * copy of this software and associated documentation files (the "Software"),
@@ -36,7 +36,7 @@ typedef int vf_flatten(struct gk20a *g, struct clk_pmupstate *pclk,
struct clk_prog_1x_master *p1xmaster, struct clk_prog_1x_master *p1xmaster,
u8 clk_domain_idx, u16 *pfreqmaxlastmhz); u8 clk_domain_idx, u16 *pfreqmaxlastmhz);
typedef u32 vf_lookup(struct gk20a *g, struct clk_pmupstate *pclk, typedef int vf_lookup(struct gk20a *g, struct clk_pmupstate *pclk,
struct clk_prog_1x_master *p1xmaster, struct clk_prog_1x_master *p1xmaster,
u8 *slave_clk_domain_idx, u16 *pclkmhz, u8 *slave_clk_domain_idx, u16 *pclkmhz,
u32 *pvoltuv, u8 rail); u32 *pvoltuv, u8 rail);