Re: [PATCH v4 13/18] phy: qcom-qmp: Register as a typec switch for orientation detection

[kernel test robot <lkp@intel.com>]

Hi Bryan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on usb/usb-next usb/usb-linus robh/for-next broonie-regulator/for-next lee-mfd/for-mfd-next linus/master v6.3-rc2 next-20230317]
[cannot apply to lee-mfd/for-mfd-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/Bryan-O-Donoghue/dt-bindings-regulator-qcom-usb-vbus-regulator-Mark-reg-as-required/20230318-202034
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20230318121828.739424-14-bryan.odonoghue%40linaro.org
patch subject: [PATCH v4 13/18] phy: qcom-qmp: Register as a typec switch for orientation detection
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230319/202303190010.w3QR1CU6-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/76d1e355779b094d3ddb20776b0835215dc3646c
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Bryan-O-Donoghue/dt-bindings-regulator-qcom-usb-vbus-regulator-Mark-reg-as-required/20230318-202034
        git checkout 76d1e355779b094d3ddb20776b0835215dc3646c
        # 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/phy/qualcomm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303190010.w3QR1CU6-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/phy/qualcomm/phy-qcom-qmp-combo.c: In function 'qmp_combo_typec_switch_set':
>> drivers/phy/qualcomm/phy-qcom-qmp-combo.c:3383:13: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    3383 |         int ret = 0;
         |             ^~~


vim +/ret +3383 drivers/phy/qualcomm/phy-qcom-qmp-combo.c

  3376	
  3377	#if IS_ENABLED(CONFIG_PHY_QCOM_QMP_TYPEC)
  3378	static int qmp_combo_typec_switch_set(struct typec_switch_dev *sw,
  3379					      enum typec_orientation orientation)
  3380	{
  3381		struct qmp_combo *qmp = typec_switch_get_drvdata(sw);
  3382		struct phy *dp_phy = qmp->dp_phy;
> 3383		int ret = 0;
  3384	
  3385		dev_dbg(qmp->dev, "Toggling orientation current %d requested %d\n",
  3386			qmp->orientation, orientation);
  3387	
  3388		qmp->orientation = orientation;
  3389	
  3390		if (orientation == TYPEC_ORIENTATION_NONE) {
  3391			if (qmp->init_count)
  3392				ret = qmp_combo_dp_power_off(dp_phy);
  3393		} else {
  3394			if (!qmp->init_count)
  3395				ret = qmp_combo_dp_power_on(dp_phy);
  3396		}
  3397	
  3398		return 0;
  3399	}
  3400	

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