[PATCH 2/3] spi: Add Amlogic SPISG driver

[kernel test robot]

Hi Xianwei,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 57cf46cd1fe351846e1b065ca9546eef66675ecd]

url:    https://github.com/intel-lab-lkp/linux/commits/Xianwei-Zhao-via-B4-Relay/dt-bindings-spi-Add-binding-document-of-Amlogic-SPISG-controller/20250604-154302
base:   57cf46cd1fe351846e1b065ca9546eef66675ecd
patch link:    https://lore.kernel.org/r/20250604-spisg-v1-2-5893dbe9d953%40amlogic.com
patch subject: [PATCH 2/3] spi: Add Amlogic SPISG driver
config: microblaze-randconfig-r123-20250605 (https://download.01.org/0day-ci/archive/20250605/202506051609.8GLrHoaR-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 14.3.0
reproduce: (https://download.01.org/0day-ci/archive/20250605/202506051609.8GLrHoaR-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/202506051609.8GLrHoaR-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/spi/spi-amlogic-spisg.c:929:24: sparse: sparse: symbol 'amlogic_spisg_driver' was not declared. Should it be static?

vim +/amlogic_spisg_driver +929 drivers/spi/spi-amlogic-spisg.c

   928	
 > 929	struct platform_driver amlogic_spisg_driver = {
   930		.probe = aml_spicc_probe,
   931		.remove = aml_spicc_remove,
   932		.shutdown = aml_spicc_shutdown,
   933		.driver  = {
   934			.name = "amlogic-spisg",
   935			.of_match_table = of_match_ptr(amlogic_spisg_of_match),
   936			.pm = &amlogic_spicc_pm_ops,
   937		},
   938	};
   939	

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