Hi Quentin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on robh/for-next v5.18 next-20220525] [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/intel-lab-lkp/linux/commits/Quentin-Schulz/media-dt-bindings-ov5675-document-YAML-binding/20220525-201607 base: git://linuxtv.org/media_tree.git master config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220525/202205252218.mhWZtfwJ-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/66ceb2ca2f2882f78a14838931faace1ac74d812 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Quentin-Schulz/media-dt-bindings-ov5675-document-YAML-binding/20220525-201607 git checkout 66ceb2ca2f2882f78a14838931faace1ac74d812 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/media/i2c/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/media/i2c/ov5675.c: In function 'ov5675_power_on': >> drivers/media/i2c/ov5675.c:1007:9: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 1007 | u32 delay_us = DIV_ROUND_UP(8192, OV5675_XVCLK_19_2 / 1000 / 1000); | ^~~ vim +1007 drivers/media/i2c/ov5675.c 978 979 static int ov5675_power_on(struct device *dev) 980 { 981 struct v4l2_subdev *sd = dev_get_drvdata(dev); 982 struct ov5675 *ov5675 = to_ov5675(sd); 983 int ret; 984 985 ret = clk_prepare_enable(ov5675->xvclk); 986 if (ret < 0) { 987 dev_err(dev, "failed to enable xvclk: %d\n", ret); 988 return ret; 989 } 990 991 gpiod_set_value_cansleep(ov5675->reset_gpio, 1); 992 993 ret = regulator_bulk_enable(OV5675_NUM_SUPPLIES, ov5675->supplies); 994 if (ret) { 995 clk_disable_unprepare(ov5675->xvclk); 996 return ret; 997 } 998 999 /* Reset pulse should be at least 2ms and reset gpio released only once 1000 * regulators are stable. 1001 */ 1002 usleep_range(2000, 2200); 1003 1004 gpiod_set_value_cansleep(ov5675->reset_gpio, 0); 1005 1006 /* 8192 xvclk cycles prior to the first SCCB transation */ > 1007 u32 delay_us = DIV_ROUND_UP(8192, OV5675_XVCLK_19_2 / 1000 / 1000); 1008 1009 usleep_range(delay_us, delay_us * 2); 1010 1011 return 0; 1012 } 1013 -- 0-DAY CI Kernel Test Service https://01.org/lkp