Re: [PATCH v5 2/7] mfd: nxp-siul2: add support for NXP SIUL2

[kernel test robot <lkp@xxxxxxxxx>]

Hi Andrei,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linusw-pinctrl/devel]
[also build test WARNING on linusw-pinctrl/for-next lee-mfd/for-mfd-next shawnguo/for-next linus/master lee-mfd/for-mfd-fixes v6.12-rc5 next-20241101]
[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/Andrei-Stefanescu/dt-bindings-mfd-add-support-for-the-NXP-SIUL2-module/20241101-160940
base:   https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git devel
patch link:    https://lore.kernel.org/r/20241101080614.1070819-3-andrei.stefanescu%40oss.nxp.com
patch subject: [PATCH v5 2/7] mfd: nxp-siul2: add support for NXP SIUL2
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20241102/202411020003.C5suQQDX-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 14.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241102/202411020003.C5suQQDX-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/202411020003.C5suQQDX-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   drivers/mfd/nxp-siul2.c: In function 'nxp_siul2_init_regmap':
>> drivers/mfd/nxp-siul2.c:318:1: warning: the frame size of 1116 bytes is larger than 1024 bytes [-Wframe-larger-than=]
     318 | }
         | ^
--
>> drivers/mfd/nxp-siul2.c:50: warning: Function parameter or struct member 'reg_name' not described in 'nxp_siul2_reg_range_info'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]


vim +318 drivers/mfd/nxp-siul2.c

   266	
   267	static int nxp_siul2_init_regmap(struct platform_device *pdev,
   268					 void __iomem *base, int siul)
   269	{
   270		struct regmap_config regmap_configs[SIUL2_NUM_REG_TYPES] = {
   271			[SIUL2_MPIDR]	= nxp_siul2_regmap_generic_conf,
   272			[SIUL2_IRQ]	= nxp_siul2_regmap_irq_conf,
   273			[SIUL2_MSCR]	= nxp_siul2_regmap_generic_conf,
   274			[SIUL2_IMCR]	= nxp_siul2_regmap_generic_conf,
   275			[SIUL2_PGPDO]	= nxp_siul2_regmap_pgpdo_conf,
   276			[SIUL2_PGPDI]	= nxp_siul2_regmap_pgpdi_conf,
   277		};
   278		const struct nxp_siul2_reg_range_info *tmp_range;
   279		struct regmap_config *tmp_conf;
   280		struct nxp_siul2_info *info;
   281		struct nxp_siul2_mfd *priv;
   282		void __iomem *reg_start;
   283		int i, ret;
   284	
   285		priv = platform_get_drvdata(pdev);
   286		info = &priv->siul2[siul];
   287	
   288		for (i = 0; i < SIUL2_NUM_REG_TYPES; i++) {
   289			if (!s32g2_reg_ranges[siul][i].valid)
   290				continue;
   291	
   292			tmp_range = &s32g2_reg_ranges[siul][i];
   293			tmp_conf = &regmap_configs[i];
   294			tmp_conf->name = tmp_range->reg_name;
   295			tmp_conf->max_register =
   296				tmp_range->reg_end_offset - tmp_range->reg_start_offset;
   297	
   298			if (tmp_conf->cache_type != REGCACHE_NONE)
   299				tmp_conf->num_reg_defaults_raw =
   300					tmp_conf->max_register / tmp_conf->reg_stride;
   301	
   302			if (tmp_range->reg_access) {
   303				tmp_conf->wr_table = tmp_range->reg_access;
   304				tmp_conf->rd_table = tmp_range->reg_access;
   305			}
   306	
   307			reg_start = base + tmp_range->reg_start_offset;
   308			info->regmaps[i] = devm_regmap_init_mmio(&pdev->dev, reg_start,
   309								 tmp_conf);
   310			if (IS_ERR(info->regmaps[i])) {
   311				dev_err(&pdev->dev, "regmap %d init failed: %d\n", i,
   312					ret);
   313				return PTR_ERR(info->regmaps[i]);
   314			}
   315		}
   316	
   317		return 0;
 > 318	}
   319	

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