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Message-ID: <202408192209.IrTzVL49-lkp@intel.com>
Date: Mon, 19 Aug 2024 23:07:19 +0800
From: kernel test robot <lkp@...el.com>
To: Alexandru Ardelean <aardelean@...libre.com>, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, jic23@...nel.org,
krzk+dt@...nel.org, robh@...nel.org, lars@...afoo.de,
michael.hennerich@...log.com, gstols@...libre.com,
Alexandru Ardelean <aardelean@...libre.com>
Subject: Re: [PATCH 7/7] iio: adc: ad7606: add support for AD7606C-{16,18}
parts
Hi Alexandru,
kernel test robot noticed the following build warnings:
[auto build test WARNING on jic23-iio/togreg]
[cannot apply to linus/master v6.11-rc4 next-20240819]
[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/Alexandru-Ardelean/iio-adc-ad7606-add-bits-parameter-to-channels-macros/20240819-145028
base: https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link: https://lore.kernel.org/r/20240819064721.91494-8-aardelean%40baylibre.com
patch subject: [PATCH 7/7] iio: adc: ad7606: add support for AD7606C-{16,18} parts
config: i386-buildonly-randconfig-001-20240819 (https://download.01.org/0day-ci/archive/20240819/202408192209.IrTzVL49-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240819/202408192209.IrTzVL49-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/202408192209.IrTzVL49-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/iio/adc/ad7606.c:796:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
796 | int ret, ch;
| ^
1 warning generated.
vim +/ret +796 drivers/iio/adc/ad7606.c
94168a5789874a Alexandru Ardelean 2024-08-19 790
94168a5789874a Alexandru Ardelean 2024-08-19 791 static int ad7606_sw_mode_setup(struct iio_dev *indio_dev, unsigned int id)
b5d2c422286d62 Alexandru Ardelean 2024-08-19 792 {
36b63bb57295f7 Alexandru Ardelean 2024-08-19 793 unsigned int num_channels = indio_dev->num_channels - 1;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 794 struct ad7606_state *st = iio_priv(indio_dev);
09d11fa081ef17 Alexandru Ardelean 2024-08-19 795 unsigned int *scale_avail_show, num_scales_avail_show;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 @796 int ret, ch;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 797
b5d2c422286d62 Alexandru Ardelean 2024-08-19 798 if (!st->bops->sw_mode_config)
b5d2c422286d62 Alexandru Ardelean 2024-08-19 799 return 0;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 800
b5d2c422286d62 Alexandru Ardelean 2024-08-19 801 st->sw_mode_en = device_property_present(st->dev, "adi,sw-mode");
b5d2c422286d62 Alexandru Ardelean 2024-08-19 802 if (!st->sw_mode_en)
b5d2c422286d62 Alexandru Ardelean 2024-08-19 803 return 0;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 804
09d11fa081ef17 Alexandru Ardelean 2024-08-19 805 indio_dev->info = &ad7606_info_sw_mode;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 806
94168a5789874a Alexandru Ardelean 2024-08-19 807 switch (id) {
94168a5789874a Alexandru Ardelean 2024-08-19 808 case ID_AD7606C_18:
94168a5789874a Alexandru Ardelean 2024-08-19 809 num_scales_avail_show = num_channels;
94168a5789874a Alexandru Ardelean 2024-08-19 810 ret = ad7606c_sw_mode_setup_channels(indio_dev,
94168a5789874a Alexandru Ardelean 2024-08-19 811 ad7606c_18_chan_setup);
94168a5789874a Alexandru Ardelean 2024-08-19 812 break;
94168a5789874a Alexandru Ardelean 2024-08-19 813 case ID_AD7606C_16:
94168a5789874a Alexandru Ardelean 2024-08-19 814 num_scales_avail_show = num_channels;
94168a5789874a Alexandru Ardelean 2024-08-19 815 ret = ad7606c_sw_mode_setup_channels(indio_dev,
94168a5789874a Alexandru Ardelean 2024-08-19 816 ad7606c_16_chan_setup);
94168a5789874a Alexandru Ardelean 2024-08-19 817 break;
94168a5789874a Alexandru Ardelean 2024-08-19 818 default:
94168a5789874a Alexandru Ardelean 2024-08-19 819 num_scales_avail_show = 1;
94168a5789874a Alexandru Ardelean 2024-08-19 820
b5d2c422286d62 Alexandru Ardelean 2024-08-19 821 /* Scale of 0.076293 is only available in sw mode */
b5d2c422286d62 Alexandru Ardelean 2024-08-19 822 /* After reset, in software mode, ±10 V is set by default */
36b63bb57295f7 Alexandru Ardelean 2024-08-19 823 for (ch = 0; ch < num_channels; ch++) {
36b63bb57295f7 Alexandru Ardelean 2024-08-19 824 struct ad7606_chan_scale *cs = &st->chan_scales[ch];
36b63bb57295f7 Alexandru Ardelean 2024-08-19 825
36b63bb57295f7 Alexandru Ardelean 2024-08-19 826 cs->scale_avail = ad7616_sw_scale_avail;
36b63bb57295f7 Alexandru Ardelean 2024-08-19 827 cs->num_scales = ARRAY_SIZE(ad7616_sw_scale_avail);
36b63bb57295f7 Alexandru Ardelean 2024-08-19 828 cs->range = 2;
36b63bb57295f7 Alexandru Ardelean 2024-08-19 829 }
b5d2c422286d62 Alexandru Ardelean 2024-08-19 830
09d11fa081ef17 Alexandru Ardelean 2024-08-19 831 ret = st->bops->sw_mode_config(indio_dev);
94168a5789874a Alexandru Ardelean 2024-08-19 832 break;
94168a5789874a Alexandru Ardelean 2024-08-19 833 }
09d11fa081ef17 Alexandru Ardelean 2024-08-19 834
09d11fa081ef17 Alexandru Ardelean 2024-08-19 835 for (ch = 0; ch < num_channels; ch++) {
09d11fa081ef17 Alexandru Ardelean 2024-08-19 836 struct ad7606_chan_scale *cs;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 837 int i;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 838
09d11fa081ef17 Alexandru Ardelean 2024-08-19 839 /* AD7606C supports different scales per channel */
09d11fa081ef17 Alexandru Ardelean 2024-08-19 840 cs = &st->chan_scales[ch];
09d11fa081ef17 Alexandru Ardelean 2024-08-19 841
09d11fa081ef17 Alexandru Ardelean 2024-08-19 842 if (num_scales_avail_show == 1 && ch > 0) {
09d11fa081ef17 Alexandru Ardelean 2024-08-19 843 cs->scale_avail_show = scale_avail_show;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 844 continue;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 845 }
09d11fa081ef17 Alexandru Ardelean 2024-08-19 846
09d11fa081ef17 Alexandru Ardelean 2024-08-19 847 scale_avail_show = devm_kcalloc(st->dev, cs->num_scales * 2,
09d11fa081ef17 Alexandru Ardelean 2024-08-19 848 sizeof(*scale_avail_show),
09d11fa081ef17 Alexandru Ardelean 2024-08-19 849 GFP_KERNEL);
09d11fa081ef17 Alexandru Ardelean 2024-08-19 850 if (!scale_avail_show)
09d11fa081ef17 Alexandru Ardelean 2024-08-19 851 return -ENOMEM;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 852
09d11fa081ef17 Alexandru Ardelean 2024-08-19 853 /* Generate a scale_avail list for showing to userspace */
09d11fa081ef17 Alexandru Ardelean 2024-08-19 854 for (i = 0; i < cs->num_scales; i++) {
09d11fa081ef17 Alexandru Ardelean 2024-08-19 855 scale_avail_show[i * 2] = 0;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 856 scale_avail_show[i * 2 + 1] = cs->scale_avail[i];
09d11fa081ef17 Alexandru Ardelean 2024-08-19 857 }
09d11fa081ef17 Alexandru Ardelean 2024-08-19 858
09d11fa081ef17 Alexandru Ardelean 2024-08-19 859 cs->scale_avail_show = scale_avail_show;
09d11fa081ef17 Alexandru Ardelean 2024-08-19 860 }
09d11fa081ef17 Alexandru Ardelean 2024-08-19 861
09d11fa081ef17 Alexandru Ardelean 2024-08-19 862 return 0;
b5d2c422286d62 Alexandru Ardelean 2024-08-19 863 }
b5d2c422286d62 Alexandru Ardelean 2024-08-19 864
--
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https://github.com/intel/lkp-tests/wiki
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