Re: [PATCH v1 3/7] mfd: add atmel-lcdc driver

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Hi Sam,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on at91/at91-next]
[also build test WARNING on v4.18 next-20180813]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Sam-Ravnborg/add-at91sam9-LCDC-DRM-driver/20180814-163056
base:   https://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91.git at91-next
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=sparc64 

All warnings (new ones prefixed by >>):

   drivers/mfd/atmel-lcdc.c: In function 'lcdc_probe':
>> drivers/mfd/atmel-lcdc.c:127:32: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=]
      dev_err(dev, "Failed to add %d mfd devices (%d)\n",
                                  ~^
                                  %ld

vim +127 drivers/mfd/atmel-lcdc.c

    66	
    67	static int lcdc_probe(struct platform_device *pdev)
    68	{
    69		struct atmel_mfd_lcdc *lcdc;
    70		struct lcdc_regmap *regmap;
    71		struct resource *res;
    72		struct device *dev;
    73		int ret;
    74	
    75		dev = &pdev->dev;
    76	
    77		regmap = devm_kzalloc(dev, sizeof(*regmap), GFP_KERNEL);
    78		if (!regmap)
    79			return -ENOMEM;
    80	
    81		lcdc = devm_kzalloc(dev, sizeof(*lcdc), GFP_KERNEL);
    82		if (!lcdc)
    83			return -ENOMEM;
    84	
    85		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    86		regmap->regs = devm_ioremap_resource(dev, res);
    87		if (IS_ERR(regmap->regs)) {
    88			dev_err(dev, "Failed to allocate IO mem (%ld)\n",
    89				PTR_ERR(regmap->regs));
    90			return PTR_ERR(regmap->regs);
    91		}
    92	
    93		lcdc->irq = platform_get_irq(pdev, 0);
    94		if (lcdc->irq < 0) {
    95			dev_err(dev, "Failed to get irq (%d)\n", lcdc->irq);
    96			return lcdc->irq;
    97		}
    98	
    99		lcdc->lcdc_clk = devm_clk_get(dev, "lcdc_clk");
   100		if (IS_ERR(lcdc->lcdc_clk)) {
   101			dev_err(dev, "failed to get lcdc clock (%ld)\n",
   102				PTR_ERR(lcdc->lcdc_clk));
   103			return PTR_ERR(lcdc->lcdc_clk);
   104		}
   105	
   106		lcdc->bus_clk = devm_clk_get(dev, "hclk");
   107		if (IS_ERR(lcdc->bus_clk)) {
   108			dev_err(dev, "failed to get bus clock (%ld)\n",
   109				PTR_ERR(lcdc->bus_clk));
   110			return PTR_ERR(lcdc->bus_clk);
   111		}
   112	
   113		lcdc->regmap = devm_regmap_init(dev, NULL, regmap,
   114						 &lcdc_regmap_config);
   115		if (IS_ERR(lcdc->regmap)) {
   116			dev_err(dev, "Failed to init regmap (%ld)\n",
   117				PTR_ERR(lcdc->regmap));
   118			return PTR_ERR(lcdc->regmap);
   119		}
   120	
   121		dev_set_drvdata(dev, lcdc);
   122	
   123		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
   124					   lcdc_cells, ARRAY_SIZE(lcdc_cells),
   125					   NULL, 0, NULL);
   126		if (ret < 0)
 > 127			dev_err(dev, "Failed to add %d mfd devices (%d)\n",
   128				ARRAY_SIZE(lcdc_cells), ret);
   129	
   130		return ret;
   131	}
   132	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip

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