[soc:board-remove 160/217] drivers/mfd/88pm860x-core.c:841:13: warning: 'device_codec_init' defined but not used

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

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git board-remove
head:   057394422bc04420585b2790b230d8a1f350ace8
commit: 59d0d39f2a1e71a171b677f5c4a10641c22d6fff [160/217] mfd: 88pm860x: remove pdata based probing
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20260817/202608170852.2QxCkILI-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260817/202608170852.2QxCkILI-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/202608170852.2QxCkILI-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/mfd/88pm860x-core.c: In function 'pm860x_probe':
   drivers/mfd/88pm860x-core.c:985:36: error: 'np' undeclared (first use in this function); did you mean 'up'?
     985 |         ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr",
         |                                    ^~
         |                                    up
   drivers/mfd/88pm860x-core.c:985:36: note: each undeclared identifier is reported only once for each function it appears in
   In file included from include/linux/device.h:15,
                    from include/linux/acpi.h:15,
                    from include/linux/i2c.h:13,
                    from drivers/mfd/88pm860x-core.c:13:
   drivers/mfd/88pm860x-core.c:988:25: error: 'dev' undeclared (first use in this function); did you mean 'cdev'?
     988 |                 dev_err(dev,
         |                         ^~~
   include/linux/dev_printk.h:110:25: note: in definition of macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                         ^~~
   drivers/mfd/88pm860x-core.c:988:17: note: in expansion of macro 'dev_err'
     988 |                 dev_err(dev,
         |                 ^~~~~~~
   drivers/mfd/88pm860x-core.c:980:29: warning: unused variable 'node' [-Wunused-variable]
     980 |         struct device_node *node = client->dev.of_node;
         |                             ^~~~
   drivers/mfd/88pm860x-core.c: At top level:
>> drivers/mfd/88pm860x-core.c:841:13: warning: 'device_codec_init' defined but not used [-Wunused-function]
     841 | static void device_codec_init(struct pm860x_chip *chip)
         |             ^~~~~~~~~~~~~~~~~
>> drivers/mfd/88pm860x-core.c:326:33: warning: 'chg_desc_regulator_data' defined but not used [-Wunused-variable]
     326 | static struct charger_regulator chg_desc_regulator_data[] = {
         |                                 ^~~~~~~~~~~~~~~~~~~~~~~
--
   drivers/input/touchscreen/88pm860x-ts.c: In function 'pm860x_touch_probe':
>> drivers/input/touchscreen/88pm860x-ts.c:174:34: warning: unused variable 'data' [-Wunused-variable]
     174 |         int irq, ret, res_x = 0, data = 0;
         |                                  ^~~~


vim +/device_codec_init +841 drivers/mfd/88pm860x-core.c

   840	
 > 841	static void device_codec_init(struct pm860x_chip *chip)
   842	{
   843		int ret;
   844	
   845		codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
   846		codec_devs[0].resources = &codec_resources[0];
   847		ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
   848				      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
   849				      NULL);
   850		if (ret < 0)
   851			dev_err(chip->dev, "Failed to add codec subdev\n");
   852	}
   853	

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