Hi Gene, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on iio/togreg] [also build test WARNING on v5.9-rc2 next-20200827] [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] url: https://github.com/0day-ci/linux/commits/Gene-Chen/iio-adc-mt6360-Add-ADC-driver-for-MT6360/20200824-170948 base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg config: i386-randconfig-s031-20200827 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-191-g10164920-dirty # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/iio/adc/mt6360-adc.c:125:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [assigned] [usertype] adc_enable @@ got restricted __be16 [usertype] @@ >> drivers/iio/adc/mt6360-adc.c:125:20: sparse: expected unsigned short [assigned] [usertype] adc_enable >> drivers/iio/adc/mt6360-adc.c:125:20: sparse: got restricted __be16 [usertype] >> drivers/iio/adc/mt6360-adc.c:179:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [addressable] [assigned] [usertype] adc_enable @@ got restricted __be16 [usertype] @@ >> drivers/iio/adc/mt6360-adc.c:179:20: sparse: expected unsigned short [addressable] [assigned] [usertype] adc_enable drivers/iio/adc/mt6360-adc.c:179:20: sparse: got restricted __be16 [usertype] # https://github.com/0day-ci/linux/commit/0e757f71bbdf50d4dad3b79e5f30c7f2386ae082 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gene-Chen/iio-adc-mt6360-Add-ADC-driver-for-MT6360/20200824-170948 git checkout 0e757f71bbdf50d4dad3b79e5f30c7f2386ae082 vim +125 drivers/iio/adc/mt6360-adc.c 106 107 static int mt6360_adc_read_processed(struct mt6360_adc_data *mad, int channel, int *val) 108 { 109 u16 adc_enable; 110 u8 rpt[3]; 111 ktime_t start_t, predict_end_t; 112 long timeout; 113 int value, ret; 114 115 mutex_lock(&mad->adc_lock); 116 117 /* select preferred channel that we want */ 118 ret = regmap_update_bits(mad->regmap, MT6360_REG_PMUADCRPT1, MT6360_PREFERCH_MASK, 119 channel << MT6360_PREFERCH_SHFT); 120 if (ret) 121 goto out_adc; 122 123 /* enable adc channel we want and adc_en */ 124 adc_enable = MT6360_ADCEN_MASK | BIT(channel); > 125 adc_enable = cpu_to_be16(adc_enable); 126 ret = regmap_raw_write(mad->regmap, MT6360_REG_PMUADCCFG, (void *)&adc_enable, sizeof(u16)); 127 if (ret) 128 goto out_adc; 129 130 start_t = ktime_get(); 131 predict_end_t = ktime_add_ms(mad->last_off_timestamps[channel], 50); 132 133 if (ktime_after(start_t, predict_end_t)) 134 predict_end_t = ktime_add_ms(start_t, 25); 135 else 136 predict_end_t = ktime_add_ms(start_t, 75); 137 138 enable_irq(mad->irq); 139 adc_retry: 140 reinit_completion(&mad->adc_complete); 141 142 /* wait for conversion to complete */ 143 timeout = wait_for_completion_timeout(&mad->adc_complete, msecs_to_jiffies(200)); 144 if (timeout == 0) { 145 ret = -ETIMEDOUT; 146 goto out_adc_conv; 147 } else if (timeout < 0) { 148 ret = -EINTR; 149 goto out_adc_conv; 150 } 151 152 ret = regmap_raw_read(mad->regmap, MT6360_REG_PMUADCRPT1, rpt, sizeof(rpt)); 153 if (ret) 154 goto out_adc_conv; 155 156 /* check the current reported channel */ 157 if ((rpt[0] & MT6360_RPTCH_MASK) != channel) { 158 dev_dbg(mad->dev, "not wanted channel report [%02x]\n", rpt[0]); 159 goto adc_retry; 160 } 161 162 if (!ktime_after(ktime_get(), predict_end_t)) { 163 dev_dbg(mad->dev, "time is not after one adc_conv_t\n"); 164 goto adc_retry; 165 } 166 167 value = (rpt[1] << 8) | rpt[2]; 168 169 ret = mt6360_adc_convert_processed_val(mad, channel, &value); 170 if (ret) 171 goto out_adc_conv; 172 173 *val = value; 174 ret = IIO_VAL_INT; 175 176 out_adc_conv: 177 disable_irq(mad->irq); 178 adc_enable = MT6360_ADCEN_MASK; > 179 adc_enable = cpu_to_be16(adc_enable); 180 regmap_raw_write(mad->regmap, MT6360_REG_PMUADCCFG, (void *)&adc_enable, sizeof(u16)); 181 mad->last_off_timestamps[channel] = ktime_get(); 182 /* set prefer channel to 0xf */ 183 regmap_update_bits(mad->regmap, MT6360_REG_PMUADCRPT1, MT6360_PREFERCH_MASK, 184 0xF << MT6360_PREFERCH_SHFT); 185 out_adc: 186 mutex_unlock(&mad->adc_lock); 187 188 return ret; 189 } 190 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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