* [chenxing:mstar_v6_5_reorder 3/700] drivers/clk/mstar/clk-msc313-upll.c:73:25: warning: unused variable 'numrates'
@ 2026-07-30 20:07 kernel test robot
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From: kernel test robot @ 2026-07-30 20:07 UTC (permalink / raw)
To: Daniel Palmer; +Cc: oe-kbuild-all
tree: https://github.com/linux-chenxing/linux.git mstar_v6_5_reorder
head: 1a5c60e65ea399670a5384b869c4958338af2799
commit: d2e2a3c660a4dfe32fe20cbe346161abac9b32da [3/700] clk: mstar: upll
config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260731/202607310429.jLdocPDb-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260731/202607310429.jLdocPDb-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607310429.jLdocPDb-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/clk/mstar/clk-msc313-upll.c: In function 'mstar_pll_common_probe':
>> drivers/clk/mstar/clk-msc313-upll.c:73:25: warning: unused variable 'numrates' [-Wunused-variable]
73 | int numparents, numrates, pllindex;
| ^~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:73:13: warning: variable 'numparents' set but not used [-Wunused-but-set-variable]
73 | int numparents, numrates, pllindex;
| ^~~~~~~~~~
At top level:
>> drivers/clk/mstar/clk-msc313-upll.c:36:31: warning: 'en_clk_upll_192m_field' defined but not used [-Wunused-const-variable=]
36 | static const struct reg_field en_clk_upll_192m_field = REG_FIELD(REG_EN_PWRDN, 2, 2);
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:35:31: warning: 'upll_en_prdt2' defined but not used [-Wunused-const-variable=]
35 | static const struct reg_field upll_en_prdt2 = REG_FIELD(REG_EN_PWRDN, 1, 1);
| ^~~~~~~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:34:31: warning: 'clk0_upll_384_en_field' defined but not used [-Wunused-const-variable=]
34 | static const struct reg_field clk0_upll_384_en_field = REG_FIELD(REG_EN_PWRDN, 0, 0);
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:33:31: warning: 'enxtal_field' defined but not used [-Wunused-const-variable=]
33 | static const struct reg_field enxtal_field = REG_FIELD(REG_MAGIC, 7, 7);
| ^~~~~~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:32:31: warning: 'enfrun_field' defined but not used [-Wunused-const-variable=]
32 | static const struct reg_field enfrun_field = REG_FIELD(REG_MAGIC, 5, 5);
| ^~~~~~~~~~~~
>> drivers/clk/mstar/clk-msc313-upll.c:31:31: warning: 'enddisc_field' defined but not used [-Wunused-const-variable=]
31 | static const struct reg_field enddisc_field = REG_FIELD(REG_MAGIC, 4, 4);
| ^~~~~~~~~~~~~
vim +/numrates +73 drivers/clk/mstar/clk-msc313-upll.c
27
28
29 /* based on the comments from the upll powerdown code in the i2m sdk kernel */
30 static const struct reg_field pd_field = REG_FIELD(REG_MAGIC, 1, 1);
> 31 static const struct reg_field enddisc_field = REG_FIELD(REG_MAGIC, 4, 4);
> 32 static const struct reg_field enfrun_field = REG_FIELD(REG_MAGIC, 5, 5);
> 33 static const struct reg_field enxtal_field = REG_FIELD(REG_MAGIC, 7, 7);
> 34 static const struct reg_field clk0_upll_384_en_field = REG_FIELD(REG_EN_PWRDN, 0, 0);
> 35 static const struct reg_field upll_en_prdt2 = REG_FIELD(REG_EN_PWRDN, 1, 1);
> 36 static const struct reg_field en_clk_upll_192m_field = REG_FIELD(REG_EN_PWRDN, 2, 2);
37 static const struct reg_field ctrl_pd_clk0_audio_field = REG_FIELD(REG_EN_PWRDN, 3, 3);
38
39 static const char* msc313_upll_outputs[] = {
40 "384",
41 "320",
42 };
43 static const u32 msc313_upll_output_rates[] = {
44 384000000,
45 320000000,
46 };
47
48 struct mstar_pll_output {
49 struct mstar_upll *pll;
50 u32 rate;
51 struct clk_hw clk_hw;
52 };
53
54 struct mstar_upll {
55 void __iomem *base;
56 struct clk_onecell_data clk_data;
57 struct mstar_pll_output *outputs;
58 unsigned numoutputs;
59
60 struct regmap_field *pd;
61 struct regmap_field *pd_clk0_audio;
62 };
63
64 #define to_pll_output(_hw) container_of(_hw, struct mstar_pll_output, clk_hw)
65
66 static int mstar_pll_common_probe(struct platform_device *pdev, struct mstar_upll **pll,
67 const struct clk_ops *clk_ops)
68 {
69 struct device *dev = &pdev->dev;
70 struct mstar_pll_output* output;
71 struct clk_init_data clk_init = { };
72 struct clk* clk;
> 73 int numparents, numrates, pllindex;
74 struct clk_onecell_data *clk_data;
75 const char *parents[1];
76 int numoutputs = ARRAY_SIZE(msc313_upll_outputs);
77
78 numparents = of_clk_parent_fill(pdev->dev.of_node, parents, ARRAY_SIZE(parents));
79
80 *pll = devm_kzalloc(&pdev->dev, sizeof(**pll), GFP_KERNEL);
81 (*pll)->outputs = devm_kzalloc(&pdev->dev, sizeof((*pll)->outputs) * numoutputs, GFP_KERNEL);
82 if (!(*pll)->outputs)
83 return -ENOMEM;
84
85 (*pll)->base = devm_platform_ioremap_resource(pdev, 0);
86 if (IS_ERR((*pll)->base))
87 return PTR_ERR((*pll)->base);
88
89 clk_data = &(*pll)->clk_data;
90 clk_data->clk_num = numoutputs;
91 clk_data->clks = devm_kcalloc(&pdev->dev, numoutputs, sizeof(struct clk *), GFP_KERNEL);
92 if (!clk_data->clks)
93 return -ENOMEM;
94
95 for (pllindex = 0; pllindex < numoutputs; pllindex++) {
96 output = &(*pll)->outputs[pllindex];
97 output->pll = *pll;
98
99 output->clk_hw.init = &clk_init;
100 clk_init.name = devm_kasprintf(dev, GFP_KERNEL, "%s_%s",
101 dev_name(dev), msc313_upll_outputs[pllindex]);
102 clk_init.ops = clk_ops;
103 clk_init.num_parents = 1;
104 clk_init.parent_names = parents;
105
106 output->rate = msc313_upll_output_rates[pllindex];
107
108 clk = clk_register(&pdev->dev, &output->clk_hw);
109 if (IS_ERR(clk)) {
110 printk("failed to register clk");
111 return -ENOMEM;
112 }
113 clk_data->clks[pllindex] = clk;
114 }
115
116 return of_clk_add_provider(pdev->dev.of_node, of_clk_src_onecell_get, clk_data);
117 }
118
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-07-30 20:07 [chenxing:mstar_v6_5_reorder 3/700] drivers/clk/mstar/clk-msc313-upll.c:73:25: warning: unused variable 'numrates' kernel test robot
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