linux-kernel - Re: [PATCH v2 6/6] input: zinitix: Add touchkey support

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Date:   Wed, 5 Jan 2022 23:38:08 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nikita Travkin <nikita@...n.ru>, dmitry.torokhov@...il.com
Cc:     kbuild-all@...ts.01.org, robh+dt@...nel.org,
        Michael.Srba@...nam.cz, linus.walleij@...aro.org,
        broonie@...nel.org, luca@...tu.xyz, linux-input@...r.kernel.org,
        devicetree@...r.kernel.org, phone-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 6/6] input: zinitix: Add touchkey support

Hi Nikita,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on dtor-input/next]
[also build test WARNING on robh/for-next hid/for-next linus/master v5.16-rc8 next-20220105]
[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/Nikita-Travkin/Add-touch-keys-support-to-the-Zinitix-touch-driver/20220105-140610
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next
config: powerpc-randconfig-s031-20220105 (https://download.01.org/0day-ci/archive/20220105/202201052355.c806rw3s-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://github.com/0day-ci/linux/commit/545e0de93da58f29350c2908498a4621f5ef59e4
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Nikita-Travkin/Add-touch-keys-support-to-the-Zinitix-touch-driver/20220105-140610
        git checkout 545e0de93da58f29350c2908498a4621f5ef59e4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/ata/ drivers/input/touchscreen/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/input/touchscreen/zinitix.c:371:24: sparse: sparse: restricted __le16 degrades to integer

vim +371 drivers/input/touchscreen/zinitix.c

   352	
   353	static irqreturn_t zinitix_ts_irq_handler(int irq, void *bt541_handler)
   354	{
   355		struct bt541_ts_data *bt541 = bt541_handler;
   356		struct i2c_client *client = bt541->client;
   357		struct touch_event touch_event;
   358		int error;
   359		int i;
   360		__le16 icon_events = 0;
   361	
   362		memset(&touch_event, 0, sizeof(struct touch_event));
   363	
   364		error = zinitix_read_data(bt541->client, BT541_POINT_STATUS_REG,
   365					  &touch_event, sizeof(struct touch_event));
   366		if (error) {
   367			dev_err(&client->dev, "Failed to read in touchpoint struct\n");
   368			goto out;
   369		}
   370	
 > 371		if (touch_event.status & BIT_ICON_EVENT) {
   372			error = zinitix_read_data(bt541->client, BT541_ICON_STATUS_REG,
   373						  &icon_events, sizeof(icon_events));
   374			if (error) {
   375				dev_err(&client->dev, "Failed to read icon events\n");
   376				goto out;
   377			}
   378	
   379			zinitix_report_keys(bt541, le16_to_cpu(icon_events));
   380		}
   381	
   382		for (i = 0; i < MAX_SUPPORTED_FINGER_NUM; i++)
   383			if (touch_event.point_coord[i].sub_status & SUB_BIT_EXIST)
   384				zinitix_report_finger(bt541, i,
   385						      &touch_event.point_coord[i]);
   386	
   387		input_mt_sync_frame(bt541->input_dev);
   388		input_sync(bt541->input_dev);
   389	
   390	out:
   391		zinitix_write_cmd(bt541->client, BT541_CLEAR_INT_STATUS_CMD);
   392		return IRQ_HANDLED;
   393	}
   394	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org