Re: [PATCH 3/5] gpio: thunderx: Configure GPIO pins at probe

[kernel test robot <lkp@xxxxxxxxx>]

Hi Piyush,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on linusw-gpio/for-next linux/master v5.18-rc4 next-20220427]
[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/Piyush-Malgujar/gpio-thunderx-Marvell-GPIO-changes/20220427-225001
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 46cf2c613f4b10eb12f749207b0fd2c1bfae3088
config: alpha-randconfig-r005-20220427 (https://download.01.org/0day-ci/archive/20220428/202204280405.DMzMLx60-lkp@xxxxxxxxx/config)
compiler: alpha-linux-gcc (GCC) 11.3.0
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
        # https://github.com/intel-lab-lkp/linux/commit/31a85ad65112e3ed61aa418772670eb96a881a4f
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Piyush-Malgujar/gpio-thunderx-Marvell-GPIO-changes/20220427-225001
        git checkout 31a85ad65112e3ed61aa418772670eb96a881a4f
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash drivers/gpio/

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

All errors (new ones prefixed by >>):

   drivers/gpio/gpio-thunderx.c: In function 'thunderx_gpio_pinsel':
>> drivers/gpio/gpio-thunderx.c:448:23: error: implicit declaration of function 'of_read_number' [-Werror=implicit-function-declaration]
     448 |                 pin = of_read_number(pinsel++, 1);
         |                       ^~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/of_read_number +448 drivers/gpio/gpio-thunderx.c

   428	
   429	static void thunderx_gpio_pinsel(struct device *dev,
   430					 struct thunderx_gpio *txgpio)
   431	{
   432		struct device_node *node;
   433		const __be32 *pinsel;
   434		int npins, rlen, i;
   435		u32 pin, sel;
   436	
   437		node = dev_of_node(dev);
   438		if (!node)
   439			return;
   440	
   441		pinsel = of_get_property(node, "pin-cfg", &rlen);
   442		if (!pinsel || rlen % 2)
   443			return;
   444	
   445		npins = rlen / sizeof(__be32) / 2;
   446	
   447		for (i = 0; i < npins; i++) {
 > 448			pin = of_read_number(pinsel++, 1);
   449			sel = of_read_number(pinsel++, 1);
   450			dev_dbg(dev, "Set GPIO pin %d CFG register to %x\n", pin, sel);
   451			writeq(sel, txgpio->register_base + bit_cfg_reg(pin));
   452		}
   453	}
   454	

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