[xilinx-xlnx:master 122/545] drivers/phy/xilinx/xilinx_dpgtquadphy.c:49:17: error: implicit declaration of function 'FIELD_PREP'

[kernel test robot]

Hi Jagadeesh,

FYI, the error/warning still remains.

tree:   https://github.com/Xilinx/linux-xlnx master
head:   8bc116ceb77acddaeffa3daeca192bdfd2aff7c3
commit: a2af060c77e92bff35d0f7176cc5139115ff29b9 [122/545] phy: Add driver for GTQUAD BASE for Displayport
config: um-allyesconfig (https://download.01.org/0day-ci/archive/20220526/202205260053.19oXRWSB-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-1) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/Xilinx/linux-xlnx/commit/a2af060c77e92bff35d0f7176cc5139115ff29b9
        git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xilinx-xlnx master
        git checkout a2af060c77e92bff35d0f7176cc5139115ff29b9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=um SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   drivers/phy/xilinx/xilinx_dpgtquadphy.c: In function 'xdpgtquad_init':
>> drivers/phy/xilinx/xilinx_dpgtquadphy.c:49:17: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
      49 |         data |= FIELD_PREP(GT_QUAD_BASE_CH1_CLK_DIV_MASK,
         |                 ^~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/FIELD_PREP +49 drivers/phy/xilinx/xilinx_dpgtquadphy.c

    34	
    35	static int xdpgtquad_init(struct phy *phy)
    36	{
    37		struct dpgtquadphy_dev *gtquad = phy_get_drvdata(phy);
    38		u32 data;
    39	
    40		/*
    41		 * Unlocking the NPI space so that GT CH1 divider value can be
    42		 * programmed. This will generate a /20 clk
    43		 */
    44		writel(GT_QUAD_BASE_CTL_VALUE,
    45		       gtquad->base + GT_QUAD_BASE_CTL);
    46	
    47		data = readl(gtquad->base + GT_QUAD_BASE_CH1_CLK_DIV_REG);
    48		data &= ~GT_QUAD_BASE_CH1_CLK_DIV_MASK;
  > 49		data |= FIELD_PREP(GT_QUAD_BASE_CH1_CLK_DIV_MASK,
    50				   GT_QUAD_BASE_CH1_CLK_DIV_VALUE);
    51		writel(data, gtquad->base + GT_QUAD_BASE_CH1_CLK_DIV_REG);
    52	
    53		return 0;
    54	}
    55	

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