linux-kernel - Re: [PATCH 2/2] pwm: sophgo: add driver for SG2044

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Message-ID: <202504072300.KCXJcmJK-lkp@intel.com>
Date: Mon, 7 Apr 2025 23:30:33 +0800
From: kernel test robot <lkp@...el.com>
To: Longbin Li <looong.bin@...il.com>,
	Uwe Kleine-König <ukleinek@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>, Alexandre Ghiti <alex@...ti.fr>
Cc: oe-kbuild-all@...ts.linux.dev, ghost <2990955050@...com>,
	linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org, Longbin Li <looong.bin@...il.com>
Subject: Re: [PATCH 2/2] pwm: sophgo: add driver for SG2044

Hi Longbin,

kernel test robot noticed the following build warnings:

[auto build test WARNING on krzk-dt/for-next]
[also build test WARNING on linus/master v6.15-rc1 next-20250407]
[cannot apply to robh/for-next sophgo/for-next sophgo/fixes]
[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/Longbin-Li/dt-bindings-pwm-sophgo-add-pwm-controller-for-SG2044/20250407-153334
base:   https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt.git for-next
patch link:    https://lore.kernel.org/r/20250407072056.8629-3-looong.bin%40gmail.com
patch subject: [PATCH 2/2] pwm: sophgo: add driver for SG2044
config: arm-randconfig-003-20250407 (https://download.01.org/0day-ci/archive/20250407/202504072300.KCXJcmJK-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250407/202504072300.KCXJcmJK-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202504072300.KCXJcmJK-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/pwm/pwm-sophgo-sg2042.c:57: warning: Function parameter or struct member 'lock' not described in 'sg2042_pwm_ddata'


vim +57 drivers/pwm/pwm-sophgo-sg2042.c

    47	
    48	/**
    49	 * struct sg2042_pwm_ddata - private driver data
    50	 * @base:		base address of mapped PWM registers
    51	 * @clk_rate_hz:	rate of base clock in HZ
    52	 */
    53	struct sg2042_pwm_ddata {
    54		void __iomem *base;
    55		unsigned long clk_rate_hz;
    56		struct mutex lock;
  > 57	};
    58	

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