Re: [PATCH v1 4/4] pinctrl: pistachio: Replace open coded fwnode_is_gpiochip()

[kernel test robot]

Hi Andy,

kernel test robot noticed the following build errors:

[auto build test ERROR on brgl/gpio/for-next]
[also build test ERROR on linusw-pinctrl/devel linusw-pinctrl/for-next linus/master v7.2 next-20260828]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andy-Shevchenko/gpio-Split-fwnode_is_gpiochip-helper/20260824-094232
base:   https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git gpio/for-next
patch link:    https://lore.kernel.org/r/20260824074427.3226457-5-andriy.shevchenko%40linux.intel.com
patch subject: [PATCH v1 4/4] pinctrl: pistachio: Replace open coded fwnode_is_gpiochip()
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260830/202608301629.wjbEOoNN-lkp@xxxxxxxxx/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260830/202608301629.wjbEOoNN-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608301629.wjbEOoNN-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from rust/helpers/helpers.c:83:
   In file included from rust/helpers/pwm.c:5:
   In file included from include/linux/pwm.h:8:
>> include/linux/gpio/driver.h:888:33: error: use of undeclared identifier 'child'
     888 |         return fwnode_property_present(child, "gpio-controller");
         |                                        ^~~~~
   1 error generated.
--
>> include/linux/gpio/driver.h:888:33: error: use of undeclared identifier 'child'
>> Unable to generate bindings: clang diagnosed error: include/linux/gpio/driver.h:888:33: error: use of undeclared identifier 'child'


vim +/child +888 include/linux/gpio/driver.h

   885	
   886	static inline bool fwnode_is_gpiochip(struct fwnode_handle *fwnode)
   887	{
 > 888		return fwnode_property_present(child, "gpio-controller");
   889	}
   890	

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