Re: [PATCH 3/6] clk: meson: t7: add peripheral clock controller

From: kernel test robot
Date: Fri Jun 16 2023 - 07:23:42 EST


Hi Lucas,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on clk/clk-next tty/tty-testing tty/tty-next tty/tty-linus krzk/for-next krzk-dt/for-next krzk-mem-ctrl/for-next linus/master v6.4-rc6 next-20230616]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Lucas-Tanure/dt-bindings-arm-amlogic-add-Amlogic-T7-based-Khadas-VIM4-bindings/20230616-023038
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20230615182938.18487-4-tanure%40linux.com
patch subject: [PATCH 3/6] clk: meson: t7: add peripheral clock controller
config: arm64-buildonly-randconfig-r004-20230615 (https://download.01.org/0day-ci/archive/20230616/202306161946.Kk7xeos8-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230616/202306161946.Kk7xeos8-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306161946.Kk7xeos8-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

drivers/clk/meson/t7.c:7084:51: warning: initialized field overwritten [-Woverride-init]
7084 | [CLKID_VID_PLL] = &t7_vid_pll.hw,
| ^
drivers/clk/meson/t7.c:7084:51: note: (near initialization for 't7_hw_onecell_data.hws[93]')
drivers/clk/meson/t7.c: In function 'meson_t7_probe':
>> drivers/clk/meson/t7.c:7946:36: warning: variable 'mclk_data' set but not used [-Wunused-but-set-variable]
7946 | struct meson_clk_pll_data *mclk_data;
| ^~~~~~~~~
drivers/clk/meson/t7.c: At top level:
drivers/clk/meson/t7.c:689:37: warning: 't7_a73_dyn_clk_sel' defined but not used [-Wunused-const-variable=]
689 | static const struct clk_parent_data t7_a73_dyn_clk_sel[] = {
| ^~~~~~~~~~~~~~~~~~
drivers/clk/meson/t7.c:93:29: warning: 'meson_pll_clk_no_ops' defined but not used [-Wunused-const-variable=]
93 | static const struct clk_ops meson_pll_clk_no_ops = {};
| ^~~~~~~~~~~~~~~~~~~~


vim +/mclk_data +7946 drivers/clk/meson/t7.c

7939
7940 static int __ref meson_t7_probe(struct platform_device *pdev)
7941 {
7942 struct device *dev = &pdev->dev;
7943 struct regmap *basic_map;
7944 struct regmap *pll_map;
7945 struct regmap *cpu_clk_map;
> 7946 struct meson_clk_pll_data *mclk_data;
7947 int ret, i;
7948
7949 /* Get regmap for different clock area */
7950 basic_map = t7_regmap_resource(dev, "basic");
7951 if (IS_ERR(basic_map)) {
7952 dev_err(dev, "basic clk registers not found\n");
7953 return PTR_ERR(basic_map);
7954 }
7955
7956 pll_map = t7_regmap_resource(dev, "pll");
7957 if (IS_ERR(pll_map)) {
7958 dev_err(dev, "pll clk registers not found\n");
7959 return PTR_ERR(pll_map);
7960 }
7961
7962 cpu_clk_map = t7_regmap_resource(dev, "cpu_clk");
7963 if (IS_ERR(cpu_clk_map)) {
7964 dev_err(dev, "cpu clk registers not found\n");
7965 return PTR_ERR(cpu_clk_map);
7966 }
7967
7968 /* Populate regmap for the regmap backed clocks */
7969 for (i = 0; i < ARRAY_SIZE(t7_clk_regmaps); i++)
7970 t7_clk_regmaps[i]->map = basic_map;
7971
7972 for (i = 0; i < ARRAY_SIZE(t7_cpu_clk_regmaps); i++)
7973 t7_cpu_clk_regmaps[i]->map = cpu_clk_map;
7974
7975 for (i = 0; i < ARRAY_SIZE(t7_pll_clk_regmaps); i++)
7976 t7_pll_clk_regmaps[i]->map = pll_map;
7977 regmap_write(pll_map, ANACTRL_MPLL_CTRL0, 0x00000543);
7978
7979 mclk_data = t7_mclk_pll_dco.data;
7980
7981 for (i = 0; i < t7_hw_onecell_data.num; i++) {
7982 /* array might be sparse */
7983 if (!t7_hw_onecell_data.hws[i])
7984 continue;
7985
7986 ret = devm_clk_hw_register(dev, t7_hw_onecell_data.hws[i]);
7987 if (ret) {
7988 dev_err(dev, "Clock registration failed\n");
7989 return ret;
7990 }
7991 }
7992 meson_t7_dvfs_setup(pdev);
7993
7994
7995 return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, &t7_hw_onecell_data);
7996 }
7997

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