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

From: kbuild test robot
Date: Wed Feb 22 2017 - 11:39:08 EST


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");

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