[sashal-stable:pending-5.4 19/48] drivers/mmc/host/sdhci-esdhc-imx.c:1041:31: error: implicit declaration of function 'readl_poll_timeout'

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

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git pending-5.4
head:   2ff2c6176c71e0d8101ee70fd6a45d5192c4761f
commit: 6eea2c3e97d08a6658bad110ab7956c4c6d87135 [19/48] mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning circuit
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/commit/?id=6eea2c3e97d08a6658bad110ab7956c4c6d87135
        git remote add sashal-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git
        git fetch --no-tags sashal-stable pending-5.4
        git checkout 6eea2c3e97d08a6658bad110ab7956c4c6d87135
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/mmc/host/sdhci-esdhc-imx.c: In function 'esdhc_reset_tuning':
>> drivers/mmc/host/sdhci-esdhc-imx.c:1041:31: error: implicit declaration of function 'readl_poll_timeout' [-Werror=implicit-function-declaration]
    1041 |                         ret = readl_poll_timeout(host->ioaddr + SDHCI_AUTO_CMD_STATUS,
         |                               ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/readl_poll_timeout +1041 drivers/mmc/host/sdhci-esdhc-imx.c

  1019	
  1020	static void esdhc_reset_tuning(struct sdhci_host *host)
  1021	{
  1022		struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
  1023		struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
  1024		u32 ctrl;
  1025		int ret;
  1026	
  1027		/* Reset the tuning circuit */
  1028		if (esdhc_is_usdhc(imx_data)) {
  1029			if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
  1030				ctrl = readl(host->ioaddr + ESDHC_MIX_CTRL);
  1031				ctrl &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
  1032				ctrl &= ~ESDHC_MIX_CTRL_FBCLK_SEL;
  1033				writel(ctrl, host->ioaddr + ESDHC_MIX_CTRL);
  1034				writel(0, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
  1035			} else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
  1036				ctrl = readl(host->ioaddr + SDHCI_AUTO_CMD_STATUS);
  1037				ctrl &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
  1038				ctrl &= ~ESDHC_MIX_CTRL_EXE_TUNE;
  1039				writel(ctrl, host->ioaddr + SDHCI_AUTO_CMD_STATUS);
  1040				/* Make sure ESDHC_MIX_CTRL_EXE_TUNE cleared */
> 1041				ret = readl_poll_timeout(host->ioaddr + SDHCI_AUTO_CMD_STATUS,
  1042					ctrl, !(ctrl & ESDHC_MIX_CTRL_EXE_TUNE), 1, 50);
  1043				if (ret == -ETIMEDOUT)
  1044					dev_warn(mmc_dev(host->mmc),
  1045					 "Warning! clear execute tuning bit failed\n");
  1046				/*
  1047				 * SDHCI_INT_DATA_AVAIL is W1C bit, set this bit will clear the
  1048				 * usdhc IP internal logic flag execute_tuning_with_clr_buf, which
  1049				 * will finally make sure the normal data transfer logic correct.
  1050				 */
  1051				ctrl = readl(host->ioaddr + SDHCI_INT_STATUS);
  1052				ctrl |= SDHCI_INT_DATA_AVAIL;
  1053				writel(ctrl, host->ioaddr + SDHCI_INT_STATUS);
  1054			}
  1055		}
  1056	}
  1057	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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