Re: [PATCH v8 3/3] gpio: nuvoton: Add Nuvoton NPCM sgpio driver

[kernel test robot <lkp@xxxxxxxxx>]

Hi Jim,

kernel test robot noticed the following build warnings:

[auto build test WARNING on brgl/gpio/for-next]
[also build test WARNING on robh/for-next linus/master v6.7-rc4 next-20231206]
[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/Jim-Liu/dt-bindings-gpio-add-NPCM-sgpio-driver-bindings/20231206-095724
base:   https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next
patch link:    https://lore.kernel.org/r/20231206014530.1600151-4-jim.t90615%40gmail.com
patch subject: [PATCH v8 3/3] gpio: nuvoton: Add Nuvoton NPCM sgpio driver
config: nios2-randconfig-r131-20231207 (https://download.01.org/0day-ci/archive/20231207/202312070733.GNrG7abU-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231207/202312070733.GNrG7abU-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/202312070733.GNrG7abU-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected struct device const *dev @@     got int @@
   drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse:     expected struct device const *dev
   drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse:     got int
>> drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected struct device const *dev @@     got int @@
   drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse:     expected struct device const *dev
   drivers/gpio/gpio-npcm-sgpio.c:150:17: sparse:     got int
>> drivers/gpio/gpio-npcm-sgpio.c:152:16: sparse: sparse: Using plain integer as NULL pointer
>> drivers/gpio/gpio-npcm-sgpio.c:534:20: sparse: sparse: incorrect type in initializer (different modifiers) @@     expected unsigned int *sft_clk @@     got unsigned int const * @@
   drivers/gpio/gpio-npcm-sgpio.c:534:20: sparse:     expected unsigned int *sft_clk
   drivers/gpio/gpio-npcm-sgpio.c:534:20: sparse:     got unsigned int const *
>> drivers/gpio/gpio-npcm-sgpio.c:535:20: sparse: sparse: incorrect type in initializer (different modifiers) @@     expected unsigned int *clk_sel @@     got unsigned int const * @@
   drivers/gpio/gpio-npcm-sgpio.c:535:20: sparse:     expected unsigned int *clk_sel
   drivers/gpio/gpio-npcm-sgpio.c:535:20: sparse:     got unsigned int const *
   drivers/gpio/gpio-npcm-sgpio.c:540:20: sparse: sparse: incorrect type in initializer (different modifiers) @@     expected unsigned int *sft_clk @@     got unsigned int const * @@
   drivers/gpio/gpio-npcm-sgpio.c:540:20: sparse:     expected unsigned int *sft_clk
   drivers/gpio/gpio-npcm-sgpio.c:540:20: sparse:     got unsigned int const *
   drivers/gpio/gpio-npcm-sgpio.c:541:20: sparse: sparse: incorrect type in initializer (different modifiers) @@     expected unsigned int *clk_sel @@     got unsigned int const * @@
   drivers/gpio/gpio-npcm-sgpio.c:541:20: sparse:     expected unsigned int *clk_sel
   drivers/gpio/gpio-npcm-sgpio.c:541:20: sparse:     got unsigned int const *

vim +150 drivers/gpio/gpio-npcm-sgpio.c

   134	
   135	static void __iomem *bank_reg(struct npcm_sgpio *gpio,
   136				      const struct npcm_sgpio_bank *bank,
   137				      const enum npcm_sgpio_reg reg)
   138	{
   139		switch (reg) {
   140		case READ_DATA:
   141			return gpio->base + bank->rdata_reg;
   142		case WRITE_DATA:
   143			return gpio->base + bank->wdata_reg;
   144		case EVENT_CFG:
   145			return gpio->base + bank->event_config;
   146		case EVENT_STS:
   147			return gpio->base + bank->event_status;
   148		default:
   149			/* actually if code runs to here, it's an error case */
 > 150			dev_WARN(true, "Getting here is an error condition");
   151		}
 > 152		return 0;
   153	}
   154	

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