[PATCH 3/4] backlight: ktz8866: improve current sinks setting

[kernel test robot]

Hi Pengyu,

kernel test robot noticed the following build errors:

[auto build test ERROR on lee-backlight/for-backlight-next]
[also build test ERROR on lee-leds/for-leds-next lee-backlight/for-backlight-fixes linus/master v6.15-rc1 next-20250407]
[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/Pengyu-Luo/dt-bindings-backlight-kinetic-ktz8866-add-ktz8866-slave-compatible/20250407-175635
base:   https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next
patch link:    https://lore.kernel.org/r/20250407095119.588920-4-mitltlatltl%40gmail.com
patch subject: [PATCH 3/4] backlight: ktz8866: improve current sinks setting
config: sparc64-randconfig-002-20250408 (https://download.01.org/0day-ci/archive/20250408/202504081106.mAYfJsQj-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250408/202504081106.mAYfJsQj-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504081106.mAYfJsQj-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/video/backlight/ktz8866.c: In function 'ktz8866_read':
>> drivers/video/backlight/ktz8866.c:73:39: error: passing argument 3 of 'regmap_read' from incompatible pointer type [-Wincompatible-pointer-types]
      73 |         regmap_read(ktz->regmap, reg, &val);
         |                                       ^~~~
         |                                       |
         |                                       unsigned int **
   In file included from drivers/video/backlight/ktz8866.c:17:
   include/linux/regmap.h:1297:69: note: expected 'unsigned int *' but argument is of type 'unsigned int **'
    1297 | int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
         |                                                       ~~~~~~~~~~~~~~^~~


vim +/regmap_read +73 drivers/video/backlight/ktz8866.c

    69	
    70	static inline void ktz8866_read(struct ktz8866 *ktz, unsigned int reg,
    71					unsigned int *val)
    72	{
  > 73		regmap_read(ktz->regmap, reg, &val);
    74	}
    75	

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