Hi Dzmitry, kernel test robot noticed the following build warnings: [auto build test WARNING on 63b3ff03d91ae8f875fe8747c781a521f78cde17] url: https://github.com/intel-lab-lkp/linux/commits/Dzmitry-Sankouski/power-supply-add-undervoltage-health-status-property/20241024-034645 base: 63b3ff03d91ae8f875fe8747c781a521f78cde17 patch link: https://lore.kernel.org/r/20241023-starqltechn_integration_upstream-v7-3-9bfaa3f4a1a0%40gmail.com patch subject: [PATCH v7 3/7] mfd: Add new driver for MAX77705 PMIC config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20241026/202410262035.of6zMB8v-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241026/202410262035.of6zMB8v-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/202410262035.of6zMB8v-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/mfd/max77705.c: In function 'max77705_i2c_probe': >> drivers/mfd/max77705.c:107:12: warning: variable 'pmic_ver' set but not used [-Wunused-but-set-variable] 107 | u8 pmic_ver, pmic_rev; | ^~~~~~~~ vim +/pmic_ver +107 drivers/mfd/max77705.c 99 100 static int max77705_i2c_probe(struct i2c_client *i2c) 101 { 102 struct max77693_dev *max77705; 103 struct regmap_irq_chip_data *irq_data; 104 struct irq_domain *domain; 105 int ret; 106 unsigned int pmic_rev_value; > 107 u8 pmic_ver, pmic_rev; 108 109 110 max77705 = devm_kzalloc(&i2c->dev, sizeof(*max77705), GFP_KERNEL); 111 if (!max77705) 112 return -ENOMEM; 113 114 max77705->i2c = i2c; 115 max77705->dev = &i2c->dev; 116 max77705->irq = i2c->irq; 117 max77705->type = TYPE_MAX77705; 118 i2c_set_clientdata(i2c, max77705); 119 120 max77705->regmap = devm_regmap_init_i2c(i2c, &max77705_regmap_config); 121 122 if (IS_ERR(max77705->regmap)) 123 return PTR_ERR(max77705->regmap); 124 125 if (regmap_read(max77705->regmap, MAX77705_PMIC_REG_PMICREV, &pmic_rev_value) < 0) 126 return -ENODEV; 127 128 pmic_rev = pmic_rev_value & MAX77705_REVISION_MASK; 129 pmic_ver = (pmic_rev_value & MAX77705_VERSION_MASK) >> MAX77705_VERSION_SHIFT; 130 131 if (pmic_rev != MAX77705_PASS3) { 132 dev_err(max77705->dev, "rev.0x%x is not tested", 133 pmic_rev); 134 return -ENODEV; 135 } 136 137 max77705->regmap_leds = devm_regmap_init_i2c(i2c, &max77705_leds_regmap_config); 138 139 if (IS_ERR(max77705->regmap_leds)) 140 return PTR_ERR(max77705->regmap_leds); 141 142 ret = devm_regmap_add_irq_chip(max77705->dev, max77705->regmap, 143 max77705->irq, 144 IRQF_ONESHOT | IRQF_SHARED, 0, 145 &max77705_topsys_irq_chip, 146 &irq_data); 147 148 if (ret) 149 dev_err(max77705->dev, "failed to add irq chip: %d\n", ret); 150 151 /* Unmask interrupts from all blocks in interrupt source register */ 152 ret = regmap_update_bits(max77705->regmap, 153 MAX77705_PMIC_REG_INTSRC_MASK, 154 MAX77705_SRC_IRQ_ALL, (unsigned int)~MAX77705_SRC_IRQ_ALL); 155 156 if (ret < 0) { 157 dev_err(max77705->dev, 158 "Could not unmask interrupts in INTSRC: %d\n", ret); 159 return ret; 160 } 161 162 domain = regmap_irq_get_domain(irq_data); 163 164 ret = devm_mfd_add_devices(max77705->dev, PLATFORM_DEVID_NONE, 165 max77705_devs, ARRAY_SIZE(max77705_devs), 166 NULL, 0, domain); 167 168 if (ret) { 169 dev_err(max77705->dev, "Failed to register child devices: %d\n", ret); 170 return ret; 171 } 172 173 device_init_wakeup(max77705->dev, true); 174 175 return 0; 176 } 177 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
