linux-kernel - Re: [PATCH 4/6] regulator: Add operation to let drivers select vsel register

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Date:   Tue, 14 Feb 2023 09:40:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Frieder Schrempf <frieder@...s.de>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org, Mark Brown <broonie@...nel.org>
Cc:     oe-kbuild-all@...ts.linux.dev, Marek Vasut <marex@...x.de>,
        Frieder Schrempf <frieder.schrempf@...tron.de>,
        ChiYuan Huang <cy_huang@...htek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH 4/6] regulator: Add operation to let drivers select vsel
 register

Hi Frieder,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on broonie-regulator/for-next]
[also build test WARNING on shawnguo/for-next arm/for-next arm/fixes arm64/for-next/core kvmarm/next rockchip/for-next soc/for-next xilinx-xlnx/master linus/master v6.2-rc8 next-20230213]
[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/Frieder-Schrempf/dt-bindings-regulator-pca9450-Document-new-usage-of-sd-vsel-gpios/20230214-013045
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next
patch link:    https://lore.kernel.org/r/20230213155833.1644366-5-frieder%40fris.de
patch subject: [PATCH 4/6] regulator: Add operation to let drivers select vsel register
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230214/202302140905.36f6bYXV-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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/b76ab45ee4b60334c27d870b6d744a937ff94636
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Frieder-Schrempf/dt-bindings-regulator-pca9450-Document-new-usage-of-sd-vsel-gpios/20230214-013045
        git checkout b76ab45ee4b60334c27d870b6d744a937ff94636
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash drivers/regulator/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302140905.36f6bYXV-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/regulator/helpers.c:226:14: warning: no previous prototype for 'regulator_get_hwreg_voltage_sel_regmap' [-Wmissing-prototypes]
     226 | unsigned int regulator_get_hwreg_voltage_sel_regmap(struct regulator_dev *rdev)
         |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/regulator_get_hwreg_voltage_sel_regmap +226 drivers/regulator/helpers.c

   225	
 > 226	unsigned int regulator_get_hwreg_voltage_sel_regmap(struct regulator_dev *rdev)
   227	{
   228		const struct regulator_ops *ops = rdev->desc->ops;
   229	
   230		if (ops->get_reg_voltage_sel)
   231			return ops->get_reg_voltage_sel(rdev);
   232	
   233		return rdev->desc->vsel_reg;
   234	}
   235	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests