Hi "Kévin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on sunxi/sunxi/for-next pza/reset/next v5.9-rc2 next-20200828] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/K-vin-L-h-pital/Support-of-MIPI-CSI-2-for-A83T/20200828-212110 base: git://linuxtv.org/media_tree.git master config: s390-allyesconfig (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/media/platform/sunxi/sun6i-csi/sun8i_a83t_mipi_csi2.c:101:6: warning: no previous prototype for 'sun6i_mipi_csi_init' [-Wmissing-prototypes] 101 | void sun6i_mipi_csi_init(struct sun6i_csi_dev *sdev) | ^~~~~~~~~~~~~~~~~~~ # https://github.com/0day-ci/linux/commit/7e8c8e3031ceba91b0a690fe805069b7069540a3 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review K-vin-L-h-pital/Support-of-MIPI-CSI-2-for-A83T/20200828-212110 git checkout 7e8c8e3031ceba91b0a690fe805069b7069540a3 vim +/sun6i_mipi_csi_init +101 drivers/media/platform/sunxi/sun6i-csi/sun8i_a83t_mipi_csi2.c 100 > 101 void sun6i_mipi_csi_init(struct sun6i_csi_dev *sdev) 102 { 103 regmap_update_bits(sdev->regmap, MIPI_CSI2_CTRL_REG, 104 MIPI_CSI2_CTRL_REG_RSTN, MIPI_CSI2_CTRL_REG_RSTN); 105 regmap_write(sdev->regmap, MIPI_CSI2_RX_PKT_NUM_REG, 0xb8d257f8); 106 sun6i_dphy_first_init(sdev); 107 regmap_write(sdev->regmap, MIPI_CSI2_RSVD1_REG, 108 HW_LOCK_REGISTER_VALUE_1); 109 regmap_write(sdev->regmap, MIPI_CSI2_RSVD2_REG, 110 HW_LOCK_REGISTER_VALUE_2); 111 regmap_write(sdev->regmap, MIPI_CSI2_RX_PKT_NUM_REG, 0); 112 regmap_write(sdev->regmap, MIPI_CSI2_VCDT0_REG, 0); 113 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 114 MIPI_CSI2_CFG_REG_SYNC_DLY_CYCLE_MASK, 115 MIPI_CSI2_CFG_REG_SYNC_DLY_CYCLE(0x11)); 116 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 117 MIPI_CSI2_CFG_REG_N_BYTE, 0); 118 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 119 MIPI_CSI2_CFG_REG_YC_SWAB, 0); 120 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 121 MIPI_CSI2_CFG_REG_NONE_UNPKT_RX_MODE, 122 MIPI_CSI2_CFG_REG_NONE_UNPKT_RX_MODE); 123 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 124 MIPI_CSI2_CFG_REG_UNPKT_EN, 125 MIPI_CSI2_CFG_REG_UNPKT_EN); 126 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 127 MIPI_CSI2_CFG_REG_BYPASS_ECC_EN, 128 MIPI_CSI2_CFG_REG_BYPASS_ECC_EN); 129 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 130 MIPI_CSI2_CFG_REG_SYNC_EN, 131 MIPI_CSI2_CFG_REG_SYNC_EN); 132 sun6i_dphy_second_init(sdev); 133 regmap_update_bits(sdev->regmap, MIPI_CSI2_CTRL_REG, 134 MIPI_CSI2_CTRL_REG_RSTN, MIPI_CSI2_CTRL_REG_RSTN); 135 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 136 MIPI_CSI2_CFG_REG_SYNC_DLY_CYCLE_MASK, 137 MIPI_CSI2_CFG_REG_SYNC_DLY_CYCLE(0x08)); 138 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 139 MIPI_CSI2_CFG_REG_NONE_UNPKT_RX_MODE, 0); 140 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 141 MIPI_CSI2_CFG_REG_BYPASS_ECC_EN, 0); 142 regmap_update_bits(sdev->regmap, MIPI_CSI2_CFG_REG, 143 MIPI_CSI2_CFG_REG_SYNC_EN, 0); 144 } 145 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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