Hi Biju,

[FYI, it's a private test report for your RFC patch.]
[auto build test WARNING on next-20220112]
[cannot apply to pinchartl-media/drm/du/next geert-renesas-drivers/renesas-clk geert-renesas-devel/next v5.16 v5.16-rc8 v5.16-rc7 v5.16]
[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/Biju-Das/Add-RZ-G2L-Display-support/20220113-014940
base:    32ce2abb03cfae17a9eb42bd6b1b619b72f23f20
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220113/202201130534.ASefePDv-lkp(a)intel.com/config)
compiler: m68k-linux-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://github.com/0day-ci/linux/commit/c0b834d1561a902d5f960a18e365d66fbeba0f95
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Biju-Das/Add-RZ-G2L-Display-support/20220113-014940
        git checkout c0b834d1561a902d5f960a18e365d66fbeba0f95
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=m68k SHELL=/bin/bash drivers/clk/renesas/

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

All warnings (new ones prefixed by >>):

>> drivers/clk/renesas/rzg2l-cpg.c:302:9: warning: this decimal constant is unsigned only in ISO C90
     302 |         { 3000000000, 1, 125,        0, 1, 1, 0, 0,  0, 0 }, /* 3000 MHz */
         |         ^
   drivers/clk/renesas/rzg2l-cpg.c:317:9: warning: this decimal constant is unsigned only in ISO C90
     317 |         { 3000000000, 1, 125,        0, 1, 1, 0, 0, 0, 0 }, /* 3000 MHz */
         |         ^


vim +302 drivers/clk/renesas/rzg2l-cpg.c

   286	
   287	static const struct rzg2l_pll5_param dsi_mode_param[] = {
   288		{   25175000, 1,  16, 13141593, 1, 1, 2, 3, 16, 0 }, /* VGA 25.175MHz */
   289		{   25200000, 1,  16, 13421773, 1, 1, 2, 3, 16, 0 }, /* VGA 25.200MHz */
   290		{   27000000, 1,  18,        0, 1, 1, 2, 3, 16, 0 }, /* 480p/576p 27.000MHz */
   291		{   27027000, 1,  18,   301990, 1, 1, 2, 3, 16, 0 }, /* 480p 27.027MHz */
   292		{   29605000, 1,  19, 12359216, 1, 1, 2, 3, 16, 0 }, /* WVGA 29.605MHz */
   293		{   40000000, 2,  80,        0, 2, 1, 1, 2,  6, 0 }, /* SVGA 40.00MHz */
   294		{   65000000, 1,  43,  5592405, 1, 1, 2, 3, 16, 0 }, /* XGA 65.00MHz */
   295		{   71000000, 2,  71,        0, 1, 1, 1, 2,  6, 0 }, /* WXGA 1280x800 71.0MHz */
   296		{   74176000, 1,  49,  7560932, 1, 1, 2, 3, 16, 0 }, /* 720p 74.176MHz */
   297		{   74250000, 1,  49,  8388608, 1, 1, 2, 3, 16, 0 }, /* 720p 74.25MHz */
   298		{   85500000, 2,  85,  8388608, 1, 1, 1, 2,  6, 0 }, /* FWXGA 1360x768 85.5MHz */
   299		{   88750000, 2,  88, 12582912, 1, 1, 1, 2,  6, 1 }, /* WXGA+ 1440x900 88.75MHz */
   300		{  108000000, 2, 108,        0, 1, 1, 1, 2,  6, 1 }, /* SXGA 108MHz */
   301		{  148500000, 2, 148,  8388608, 1, 1, 1, 2,  6, 1 }, /* 1080p 148.5MHz */
 > 302		{ 3000000000, 1, 125,        0, 1, 1, 0, 0,  0, 0 }, /* 3000 MHz */
   303	};
   304	

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