Re: [PATCH v3 3/4] clocksource/drivers/timer-vt8500: Prepare for watchdog functionality

[kernel test robot <lkp@intel.com>]

Hi Alexey,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 92a09c47464d040866cf2b4cd052bc60555185fb]

url:    https://github.com/intel-lab-lkp/linux/commits/Alexey-Charkov/dt-bindings-timer-via-vt8500-timer-Convert-to-YAML/20250516-025729
base:   92a09c47464d040866cf2b4cd052bc60555185fb
patch link:    https://lore.kernel.org/r/20250515-vt8500-timer-updates-v3-3-2197a1b062bd%40gmail.com
patch subject: [PATCH v3 3/4] clocksource/drivers/timer-vt8500: Prepare for watchdog functionality
config: loongarch-randconfig-r123-20250517 (https://download.01.org/0day-ci/archive/20250518/202505180911.hDevFA1N-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250518/202505180911.hDevFA1N-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/202505180911.hDevFA1N-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/clocksource/timer-vt8500.c:201:51: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *platform_data @@     got void [noderef] __iomem *static [assigned] [toplevel] regbase @@
   drivers/clocksource/timer-vt8500.c:201:51: sparse:     expected void *platform_data
   drivers/clocksource/timer-vt8500.c:201:51: sparse:     got void [noderef] __iomem *static [assigned] [toplevel] regbase

vim +201 drivers/clocksource/timer-vt8500.c

   175	
   176	/*
   177	 * This probe gets called after the timer is already up and running. This will create
   178	 * the watchdog device as a child since the registers are shared.
   179	 */
   180	static int vt8500_timer_probe(struct platform_device *pdev)
   181	{
   182		struct platform_device *vt8500_watchdog_device;
   183		struct device *dev = &pdev->dev;
   184		int ret;
   185	
   186		if (!sys_timer_ch) {
   187			dev_info(dev, "Not enabling watchdog: only one irq was given");
   188			return 0;
   189		}
   190	
   191		if (!regbase)
   192			return dev_err_probe(dev, -ENOMEM,
   193				"Timer not initialized, cannot create watchdog");
   194	
   195		vt8500_watchdog_device = platform_device_alloc("vt8500-wdt", -1);
   196		if (!vt8500_watchdog_device)
   197			return dev_err_probe(dev, -ENOMEM,
   198				"Failed to allocate vt8500-wdt");
   199	
   200		/* Pass the base address as platform data and nothing else */
 > 201		vt8500_watchdog_device->dev.platform_data = regbase;
   202		vt8500_watchdog_device->dev.parent = dev;
   203	
   204		ret = platform_device_add(vt8500_watchdog_device);
   205		if (ret)
   206			platform_device_put(vt8500_watchdog_device);
   207	
   208		return ret;
   209	}
   210	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki