linux-kernel - Re: [PATCH 1/2] power: supply: ltc2941-battery-gauge: Add OF device ID table

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Date:   Thu, 23 Feb 2017 00:38:29 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Javier Martinez Canillas <javier@....samsung.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        Javier Martinez Canillas <javier@....samsung.com>,
        Sebastian Reichel <sre@...nel.org>, linux-pm@...r.kernel.org
Subject: Re: [PATCH 1/2] power: supply: ltc2941-battery-gauge: Add OF device
 ID table

Hi Javier,

[auto build test WARNING on battery/master]
[also build test WARNING on v4.10 next-20170221]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Javier-Martinez-Canillas/power-supply-ltc2941-battery-gauge-Add-OF-device-ID-table/20170222-223315
base:   git://git.infradead.org/battery-2.6.git master
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/power/supply/ltc2941-battery-gauge.c: In function 'ltc294x_i2c_probe':
>> drivers/power/supply/ltc2941-battery-gauge.c:391:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     info->num_regs = (int)of_device_get_match_data(&client->dev);
                      ^

vim +391 drivers/power/supply/ltc2941-battery-gauge.c

   375	{
   376		struct power_supply_config psy_cfg = {};
   377		struct ltc294x_info *info;
   378		int ret;
   379		u32 prescaler_exp;
   380		s32 r_sense;
   381		struct device_node *np;
   382	
   383		info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL);
   384		if (info == NULL)
   385			return -ENOMEM;
   386	
   387		i2c_set_clientdata(client, info);
   388	
   389		np = of_node_get(client->dev.of_node);
   390	
 > 391		info->num_regs = (int)of_device_get_match_data(&client->dev);
   392		info->supply_desc.name = np->name;
   393	
   394		/* r_sense can be negative, when sense+ is connected to the battery
   395		 * instead of the sense-. This results in reversed measurements. */
   396		ret = of_property_read_u32(np, "lltc,resistor-sense", &r_sense);
   397		if (ret < 0) {
   398			dev_err(&client->dev,
   399				"Could not find lltc,resistor-sense in devicetree\n");

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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