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Date:   Fri, 16 Mar 2018 14:01:45 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Eddie James <eajames@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, linux-hwmon@...r.kernel.org,
        linux-kernel@...r.kernel.org, jdelvare@...e.com,
        linux@...ck-us.net, joel@....id.au,
        Christopher Bostic <cbostic@...ux.vnet.ibm.com>,
        Andrew Jeffery <andrew@...id.au>,
        Eddie James <eajames@...ux.vnet.ibm.com>
Subject: Re: [PATCH v2 1/2] hwmon: (ucd9000) Add gpio chip interface

Hi Christopher,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.16-rc5 next-20180315]
[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/Eddie-James/hwmon-ucd9000-Add-gpio-and-debugfs-interfaces/20180316-125048
config: x86_64-randconfig-x017-201810 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/hwmon/pmbus/ucd9000.c: In function 'ucd9000_probe':
>> drivers/hwmon/pmbus/ucd9000.c:457:12: error: 'struct gpio_chip' has no member named 'of_node'
     data->gpio.of_node = client->dev.of_node;
               ^

vim +457 drivers/hwmon/pmbus/ucd9000.c

   308	
   309	static int ucd9000_probe(struct i2c_client *client,
   310				 const struct i2c_device_id *id)
   311	{
   312		u8 block_buffer[I2C_SMBUS_BLOCK_MAX + 1];
   313		struct ucd9000_data *data;
   314		struct pmbus_driver_info *info;
   315		const struct i2c_device_id *mid;
   316		enum chips chip;
   317		int i, ret;
   318	
   319		if (!i2c_check_functionality(client->adapter,
   320					     I2C_FUNC_SMBUS_BYTE_DATA |
   321					     I2C_FUNC_SMBUS_BLOCK_DATA))
   322			return -ENODEV;
   323	
   324		ret = i2c_smbus_read_block_data(client, UCD9000_DEVICE_ID,
   325						block_buffer);
   326		if (ret < 0) {
   327			dev_err(&client->dev, "Failed to read device ID\n");
   328			return ret;
   329		}
   330		block_buffer[ret] = '\0';
   331		dev_info(&client->dev, "Device ID %s\n", block_buffer);
   332	
   333		for (mid = ucd9000_id; mid->name[0]; mid++) {
   334			if (!strncasecmp(mid->name, block_buffer, strlen(mid->name)))
   335				break;
   336		}
   337		if (!mid->name[0]) {
   338			dev_err(&client->dev, "Unsupported device\n");
   339			return -ENODEV;
   340		}
   341	
   342		if (client->dev.of_node)
   343			chip = (enum chips)of_device_get_match_data(&client->dev);
   344		else
   345			chip = id->driver_data;
   346	
   347		if (chip != ucd9000 && chip != mid->driver_data)
   348			dev_notice(&client->dev,
   349				   "Device mismatch: Configured %s, detected %s\n",
   350				   id->name, mid->name);
   351	
   352		data = devm_kzalloc(&client->dev, sizeof(struct ucd9000_data),
   353				    GFP_KERNEL);
   354		if (!data)
   355			return -ENOMEM;
   356		info = &data->info;
   357	
   358		ret = i2c_smbus_read_byte_data(client, UCD9000_NUM_PAGES);
   359		if (ret < 0) {
   360			dev_err(&client->dev,
   361				"Failed to read number of active pages\n");
   362			return ret;
   363		}
   364		info->pages = ret;
   365		if (!info->pages) {
   366			dev_err(&client->dev, "No pages configured\n");
   367			return -ENODEV;
   368		}
   369	
   370		/* The internal temperature sensor is always active */
   371		info->func[0] = PMBUS_HAVE_TEMP;
   372	
   373		/* Everything else is configurable */
   374		ret = i2c_smbus_read_block_data(client, UCD9000_MONITOR_CONFIG,
   375						block_buffer);
   376		if (ret <= 0) {
   377			dev_err(&client->dev, "Failed to read configuration data\n");
   378			return -ENODEV;
   379		}
   380		for (i = 0; i < ret; i++) {
   381			int page = UCD9000_MON_PAGE(block_buffer[i]);
   382	
   383			if (page >= info->pages)
   384				continue;
   385	
   386			switch (UCD9000_MON_TYPE(block_buffer[i])) {
   387			case UCD9000_MON_VOLTAGE:
   388			case UCD9000_MON_VOLTAGE_HW:
   389				info->func[page] |= PMBUS_HAVE_VOUT
   390				  | PMBUS_HAVE_STATUS_VOUT;
   391				break;
   392			case UCD9000_MON_TEMPERATURE:
   393				info->func[page] |= PMBUS_HAVE_TEMP2
   394				  | PMBUS_HAVE_STATUS_TEMP;
   395				break;
   396			case UCD9000_MON_CURRENT:
   397				info->func[page] |= PMBUS_HAVE_IOUT
   398				  | PMBUS_HAVE_STATUS_IOUT;
   399				break;
   400			default:
   401				break;
   402			}
   403		}
   404	
   405		/* Fan configuration */
   406		if (mid->driver_data == ucd90124) {
   407			for (i = 0; i < UCD9000_NUM_FAN; i++) {
   408				i2c_smbus_write_byte_data(client,
   409							  UCD9000_FAN_CONFIG_INDEX, i);
   410				ret = i2c_smbus_read_block_data(client,
   411								UCD9000_FAN_CONFIG,
   412								data->fan_data[i]);
   413				if (ret < 0)
   414					return ret;
   415			}
   416			i2c_smbus_write_byte_data(client, UCD9000_FAN_CONFIG_INDEX, 0);
   417	
   418			info->read_byte_data = ucd9000_read_byte_data;
   419			info->func[0] |= PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12
   420			  | PMBUS_HAVE_FAN34 | PMBUS_HAVE_STATUS_FAN34;
   421		}
   422	
   423		/*
   424		 * Note:
   425		 *
   426		 * Pinmux support has not been added to the new gpio_chip.
   427		 * This support should be added when possible given the mux
   428		 * behavior of these IO devices.
   429		 */
   430		data->gpio.label = (const char *)&client->name;
   431		data->gpio.get_direction = ucd9000_gpio_get_direction;
   432		data->gpio.direction_input = ucd9000_gpio_direction_input;
   433		data->gpio.direction_output = ucd9000_gpio_direction_output;
   434		data->gpio.get = ucd9000_gpio_get;
   435		data->gpio.set = ucd9000_gpio_set;
   436		data->gpio.can_sleep = 1;
   437		data->gpio.base = -1;
   438	
   439		switch (mid->driver_data) {
   440		case ucd9090:
   441			data->gpio.ngpio = UCD9090_NUM_GPIOS;
   442			break;
   443		case ucd90120:
   444		case ucd90124:
   445		case ucd90160:
   446			data->gpio.ngpio = UCD901XX_NUM_GPIOS;
   447			break;
   448		case ucd90910:
   449			data->gpio.ngpio = UCD90910_NUM_GPIOS;
   450			break;
   451		default:
   452			break;
   453		}
   454	
   455		data->gpio.parent = &client->dev;
   456		data->gpio.owner = THIS_MODULE;
 > 457		data->gpio.of_node = client->dev.of_node;
   458	
   459		if (data->gpio.ngpio) {
   460			ret = devm_gpiochip_add_data(&client->dev, &data->gpio,
   461						     client);
   462			if (ret)
   463				dev_warn(&client->dev, "Could not add gpiochip: %d\n",
   464					 ret);
   465		}
   466	
   467		return pmbus_do_probe(client, mid, info);
   468	}
   469	

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

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