[PATCH v2 2/2] phy: renesas: r8a779f0-ether-serdes: add new step added to latest datasheet

[kernel test robot]

Hi Michael,

kernel test robot noticed the following build errors:

[auto build test ERROR on a5806cd506af5a7c19bcd596e4708b5c464bfd21]

url:    https://github.com/intel-lab-lkp/linux/commits/Michael-Dege/phy-renesas-r8a779f0-ether-serdes-add-USXGMII-mode/20250527-150048
base:   a5806cd506af5a7c19bcd596e4708b5c464bfd21
patch link:    https://lore.kernel.org/r/20250527-renesas-serdes-update-v2-2-ef17c71cd94c%40renesas.com
patch subject: [PATCH v2 2/2] phy: renesas: r8a779f0-ether-serdes: add new step added to latest datasheet
config: arc-randconfig-001-20250527 (https://download.01.org/0day-ci/archive/20250527/202505271711.WM48TTTI-lkp@intel.com/config)
compiler: arc-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250527/202505271711.WM48TTTI-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/202505271711.WM48TTTI-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/phy/renesas/r8a779f0-ether-serdes.c: In function 'r8a779f0_eth_serdes_read32':
>> drivers/phy/renesas/r8a779f0-ether-serdes.c:54:25: error: 'RENESAS_ETH_SERDES_BANK_SELECT' undeclared (first use in this function); did you mean 'R8A779F0_ETH_SERDES_BANK_SELECT'?
      54 |  iowrite32(bank, addr + RENESAS_ETH_SERDES_BANK_SELECT);
         |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                         R8A779F0_ETH_SERDES_BANK_SELECT
   drivers/phy/renesas/r8a779f0-ether-serdes.c:54:25: note: each undeclared identifier is reported only once for each function it appears in


vim +54 drivers/phy/renesas/r8a779f0-ether-serdes.c

    51	
    52	static u32 r8a779f0_eth_serdes_read32(void __iomem *addr, u32 offs,  u32 bank)
    53	{
  > 54		iowrite32(bank, addr + RENESAS_ETH_SERDES_BANK_SELECT);
    55	
    56		return ioread32(addr + offs);
    57	}
    58	

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