Hi Mayank,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on staging/staging-testing]

url:    
https://github.com/0day-ci/linux/commits/Mayank-Suman/staging-fbtft-replaced-udelay-with-usleep_range/20210205-171807
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 
06b0c0dce88e2aa2f01343db0f26d214d7f264a0
config: arm64-randconfig-r025-20210205 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 
c9439ca36342fb6013187d0a69aef92736951476)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # 
https://github.com/0day-ci/linux/commit/4a777af1cc91dc603b6b92fe06fd94081dc2891e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Mayank-Suman/staging-fbtft-replaced-udelay-with-usleep_range/20210205-171807
        git checkout 4a777af1cc91dc603b6b92fe06fd94081dc2891e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

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

All errors (new ones prefixed by >>):

>> drivers/staging/fbtft/fb_ra8875.c:220:18: error: too few arguments to 
>> function call, expected 2, have 1
           usleep_range(100);
           ~~~~~~~~~~~~    ^
   include/linux/delay.h:61:6: note: 'usleep_range' declared here
   void usleep_range(unsigned long min, unsigned long max);
        ^
   drivers/staging/fbtft/fb_ra8875.c:241:18: error: too few arguments to 
function call, expected 2, have 1
           usleep_range(100);
           ~~~~~~~~~~~~    ^
   include/linux/delay.h:61:6: note: 'usleep_range' declared here
   void usleep_range(unsigned long min, unsigned long max);
        ^
   2 errors generated.
--
>> drivers/staging/fbtft/fb_tinylcd.c:44:18: error: too few arguments to 
>> function call, expected 2, have 1
           usleep_range(250);
           ~~~~~~~~~~~~    ^
   include/linux/delay.h:61:6: note: 'usleep_range' declared here
   void usleep_range(unsigned long min, unsigned long max);
        ^
   1 error generated.
--
>> drivers/staging/fbtft/fb_watterott.c:87:19: error: too few arguments to 
>> function call, expected 2, have 1
                   usleep_range(300);
                   ~~~~~~~~~~~~    ^
   include/linux/delay.h:61:6: note: 'usleep_range' declared here
   void usleep_range(unsigned long min, unsigned long max);
        ^
   drivers/staging/fbtft/fb_watterott.c:127:19: error: too few arguments to 
function call, expected 2, have 1
                   usleep_range(700);
                   ~~~~~~~~~~~~    ^
   include/linux/delay.h:61:6: note: 'usleep_range' declared here
   void usleep_range(unsigned long min, unsigned long max);
        ^
   2 errors generated.


vim +220 drivers/staging/fbtft/fb_ra8875.c

   189  
   190  static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
   191  {
   192          va_list args;
   193          int i, ret;
   194          u8 *buf = par->buf;
   195  
   196          /* slow down spi-speed for writing registers */
   197          par->fbtftops.write = write_spi;
   198  
   199          if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {
   200                  va_start(args, len);
   201                  for (i = 0; i < len; i++)
   202                          buf[i] = (u8)va_arg(args, unsigned int);
   203                  va_end(args);
   204                  fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, 
par->info->device,
   205                                    u8, buf, len, "%s: ", __func__);
   206          }
   207  
   208          va_start(args, len);
   209          *buf++ = 0x80;
   210          *buf = (u8)va_arg(args, unsigned int);
   211          ret = par->fbtftops.write(par, par->buf, 2);
   212          if (ret < 0) {
   213                  va_end(args);
   214                  dev_err(par->info->device, "write() failed and returned 
%dn",
   215                          ret);
   216                  return;
   217          }
   218          len--;
   219  
 > 220          usleep_range(100);
   221  
   222          if (len) {
   223                  buf = (u8 *)par->buf;
   224                  *buf++ = 0x00;
   225                  i = len;
   226                  while (i--)
   227                          *buf++ = (u8)va_arg(args, unsigned int);
   228  
   229                  ret = par->fbtftops.write(par, par->buf, len + 1);
   230                  if (ret < 0) {
   231                          va_end(args);
   232                          dev_err(par->info->device,
   233                                  "write() failed and returned %dn", ret);
   234                          return;
   235                  }
   236          }
   237          va_end(args);
   238  
   239          /* restore user spi-speed */
   240          par->fbtftops.write = fbtft_write_spi;
   241          usleep_range(100);
   242  }
   243  

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

Attachment: .config.gz
Description: application/gzip

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