linux-kernel - Re: [PATCH 2/3] iio: pressure: bmp280: Add support for BMP380 sensor family

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Date:   Sun, 26 Jun 2022 01:59:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Angel Iglesias <ang.iglesiasg@...il.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        Angel Iglesias <ang.iglesiasg@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Paul Cercueil <paul@...pouillou.net>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] iio: pressure: bmp280: Add support for BMP380 sensor
 family

Hi Angel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on jic23-iio/togreg]
[also build test ERROR on robh/for-next linus/master v5.19-rc3 next-20220624]
[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/intel-lab-lkp/linux/commits/Angel-Iglesias/dt-bindings-iio-pressure-bmp085-Add-BMP380-compatible-string/20220625-231424
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
config: i386-randconfig-a002
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 42a7ddb428c999229491b0effbb1a4059149fba8)
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/56e3f8aecddacdbe204fbe5e28032ef2befae647
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Angel-Iglesias/dt-bindings-iio-pressure-bmp085-Add-BMP380-compatible-string/20220625-231424
        git checkout 56e3f8aecddacdbe204fbe5e28032ef2befae647
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All error/warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/iio/pressure/bmp280-core.c:1000:10: warning: use of logical '&&' with constant operand [-Wconstant-logical-operand]
if (tmp && BMP380_ERR_CONF_MASK) {
^  ~~~~~~~~~~~~~~~~~~~~
drivers/iio/pressure/bmp280-core.c:1000:10: note: use '&' for a bitwise operation
if (tmp && BMP380_ERR_CONF_MASK) {
^~
&
drivers/iio/pressure/bmp280-core.c:1000:10: note: remove constant to silence this warning
if (tmp && BMP380_ERR_CONF_MASK) {
~^~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
--
>> ERROR: modpost: "__divdi3" [drivers/iio/pressure/bmp280.ko] undefined!


vim +1000 drivers/iio/pressure/bmp280-core.c

   945	
   946	static int bmp380_chip_config(struct bmp280_data *data)
   947	{
   948		u8 osrs;
   949		unsigned int tmp;
   950		int ret;
   951	
   952		/* configure power control register */
   953		ret = regmap_write_bits(data->regmap, BMP380_REG_POWER_CONTROL,
   954					BMP380_CTRL_SENSORS_MASK |
   955					BMP380_MODE_MASK,
   956					BMP380_CTRL_SENSORS_PRESS_EN |
   957					BMP380_CTRL_SENSORS_TEMP_EN |
   958					BMP380_MODE_NORMAL);
   959		if (ret < 0) {
   960			dev_err(data->dev,
   961				"failed to write operation control register\n");
   962			return ret;
   963		}
   964	
   965		/* configure oversampling */
   966		osrs = BMP380_OSRS_TEMP_X(data->oversampling_temp) |
   967					BMP380_OSRS_PRESS_X(data->oversampling_press);
   968	
   969		ret = regmap_write_bits(data->regmap, BMP380_REG_OSR,
   970					BMP380_OSRS_TEMP_MASK | BMP380_OSRS_PRESS_MASK,
   971					osrs);
   972		if (ret < 0) {
   973			dev_err(data->dev, "failed to write oversampling register\n");
   974			return ret;
   975		}
   976	
   977		/* configure output data rate */
   978		ret = regmap_write_bits(data->regmap, BMP380_REG_ODR,
   979					BMP380_ODRS_MASK, BMP380_ODRS_50HZ);
   980		if (ret < 0) {
   981			dev_err(data->dev, "failed to write ODR selection register\n");
   982			return ret;
   983		}
   984	
   985		/* set filter data */
   986		ret = regmap_update_bits(data->regmap, BMP380_REG_CONFIG,
   987					BMP380_FILTER_MASK, BMP380_FILTER_3X);
   988		if (ret < 0) {
   989			dev_err(data->dev, "failed to write config register\n");
   990			return ret;
   991		}
   992	
   993		/* check config error flag */
   994		ret = regmap_read(data->regmap, BMP380_REG_ERROR, &tmp);
   995		if (ret < 0) {
   996			dev_err(data->dev,
   997				"failed to read error register\n");
   998			return ret;
   999		}
> 1000		if (tmp && BMP380_ERR_CONF_MASK) {
  1001			dev_warn(data->dev,
  1002				 "sensor flagged configuration as incompatible\n");
  1003			ret = -EINVAL;
  1004		}
  1005	
  1006		return ret;
  1007	}
  1008	

-- 
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https://01.org/lkp