Re: [PATCH] HID: i2c-hid: Enable touchpad wakeup from Suspend-to-Idle

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Hi Kai-Heng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.7-rc6 next-20200515]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Kai-Heng-Feng/HID-i2c-hid-Enable-touchpad-wakeup-from-Suspend-to-Idle/20200518-173725
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce
config: parisc-randconfig-r031-20200518 (attached as .config)
compiler: hppa64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All error/warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from include/linux/kernel.h:11,
from include/linux/list.h:9,
from include/linux/module.h:12,
from drivers/hid/i2c-hid/i2c-hid-core.c:21:
drivers/hid/i2c-hid/i2c-hid-core.c: In function 'i2c_hid_probe':
>> drivers/hid/i2c-hid/i2c-hid-core.c:1075:6: error: 'acpi_gbl_FADT' undeclared (first use in this function)
1075 |  if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
|      ^~~~~~~~~~~~~
include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
|                                                    ^~~~
>> drivers/hid/i2c-hid/i2c-hid-core.c:1075:2: note: in expansion of macro 'if'
1075 |  if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
|  ^~
drivers/hid/i2c-hid/i2c-hid-core.c:1075:6: note: each undeclared identifier is reported only once for each function it appears in
1075 |  if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
|      ^~~~~~~~~~~~~
include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var'
58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond))
|                                                    ^~~~
>> drivers/hid/i2c-hid/i2c-hid-core.c:1075:2: note: in expansion of macro 'if'
1075 |  if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
|  ^~

vim +/acpi_gbl_FADT +1075 drivers/hid/i2c-hid/i2c-hid-core.c

   995	
   996	static int i2c_hid_probe(struct i2c_client *client,
   997				 const struct i2c_device_id *dev_id)
   998	{
   999		int ret;
  1000		struct i2c_hid *ihid;
  1001		struct hid_device *hid;
  1002		__u16 hidRegister;
  1003		struct i2c_hid_platform_data *platform_data = client->dev.platform_data;
  1004	
  1005		dbg_hid("HID probe called for i2c 0x%02x\n", client->addr);
  1006	
  1007		if (!client->irq) {
  1008			dev_err(&client->dev,
  1009				"HID over i2c has not been provided an Int IRQ\n");
  1010			return -EINVAL;
  1011		}
  1012	
  1013		if (client->irq < 0) {
  1014			if (client->irq != -EPROBE_DEFER)
  1015				dev_err(&client->dev,
  1016					"HID over i2c doesn't have a valid IRQ\n");
  1017			return client->irq;
  1018		}
  1019	
  1020		ihid = devm_kzalloc(&client->dev, sizeof(*ihid), GFP_KERNEL);
  1021		if (!ihid)
  1022			return -ENOMEM;
  1023	
  1024		if (client->dev.of_node) {
  1025			ret = i2c_hid_of_probe(client, &ihid->pdata);
  1026			if (ret)
  1027				return ret;
  1028		} else if (!platform_data) {
  1029			ret = i2c_hid_acpi_pdata(client, &ihid->pdata);
  1030			if (ret)
  1031				return ret;
  1032		} else {
  1033			ihid->pdata = *platform_data;
  1034		}
  1035	
  1036		/* Parse platform agnostic common properties from ACPI / device tree */
  1037		i2c_hid_fwnode_probe(client, &ihid->pdata);
  1038	
  1039		ihid->pdata.supplies[0].supply = "vdd";
  1040		ihid->pdata.supplies[1].supply = "vddl";
  1041	
  1042		ret = devm_regulator_bulk_get(&client->dev,
  1043					      ARRAY_SIZE(ihid->pdata.supplies),
  1044					      ihid->pdata.supplies);
  1045		if (ret)
  1046			return ret;
  1047	
  1048		ret = regulator_bulk_enable(ARRAY_SIZE(ihid->pdata.supplies),
  1049					    ihid->pdata.supplies);
  1050		if (ret < 0)
  1051			return ret;
  1052	
  1053		if (ihid->pdata.post_power_delay_ms)
  1054			msleep(ihid->pdata.post_power_delay_ms);
  1055	
  1056		i2c_set_clientdata(client, ihid);
  1057	
  1058		ihid->client = client;
  1059	
  1060		hidRegister = ihid->pdata.hid_descriptor_address;
  1061		ihid->wHIDDescRegister = cpu_to_le16(hidRegister);
  1062	
  1063		init_waitqueue_head(&ihid->wait);
  1064		mutex_init(&ihid->reset_lock);
  1065	
  1066		/* we need to allocate the command buffer without knowing the maximum
  1067		 * size of the reports. Let's use HID_MIN_BUFFER_SIZE, then we do the
  1068		 * real computation later. */
  1069		ret = i2c_hid_alloc_buffers(ihid, HID_MIN_BUFFER_SIZE);
  1070		if (ret < 0)
  1071			goto err_regulator;
  1072	
  1073		i2c_hid_acpi_fix_up_power(&client->dev);
  1074	
> 1075		if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
  1076			device_set_wakeup_capable(&client->dev, true);
  1077			device_wakeup_enable(&client->dev);
  1078		}
  1079	
  1080		device_enable_async_suspend(&client->dev);
  1081	
  1082		/* Make sure there is something at this address */
  1083		ret = i2c_smbus_read_byte(client);
  1084		if (ret < 0) {
  1085			dev_dbg(&client->dev, "nothing at this address: %d\n", ret);
  1086			ret = -ENXIO;
  1087			goto err_regulator;
  1088		}
  1089	
  1090		ret = i2c_hid_fetch_hid_descriptor(ihid);
  1091		if (ret < 0)
  1092			goto err_regulator;
  1093	
  1094		ret = i2c_hid_init_irq(client);
  1095		if (ret < 0)
  1096			goto err_regulator;
  1097	
  1098		hid = hid_allocate_device();
  1099		if (IS_ERR(hid)) {
  1100			ret = PTR_ERR(hid);
  1101			goto err_irq;
  1102		}
  1103	
  1104		ihid->hid = hid;
  1105	
  1106		hid->driver_data = client;
  1107		hid->ll_driver = &i2c_hid_ll_driver;
  1108		hid->dev.parent = &client->dev;
  1109		hid->bus = BUS_I2C;
  1110		hid->version = le16_to_cpu(ihid->hdesc.bcdVersion);
  1111		hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
  1112		hid->product = le16_to_cpu(ihid->hdesc.wProductID);
  1113	
  1114		snprintf(hid->name, sizeof(hid->name), "%s %04hX:%04hX",
  1115			 client->name, hid->vendor, hid->product);
  1116		strlcpy(hid->phys, dev_name(&client->dev), sizeof(hid->phys));
  1117	
  1118		ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product);
  1119	
  1120		ret = hid_add_device(hid);
  1121		if (ret) {
  1122			if (ret != -ENODEV)
  1123				hid_err(client, "can't add hid device: %d\n", ret);
  1124			goto err_mem_free;
  1125		}
  1126	
  1127		return 0;
  1128	
  1129	err_mem_free:
  1130		hid_destroy_device(hid);
  1131	
  1132	err_irq:
  1133		free_irq(client->irq, ihid);
  1134	
  1135	err_regulator:
  1136		regulator_bulk_disable(ARRAY_SIZE(ihid->pdata.supplies),
  1137				       ihid->pdata.supplies);
  1138		i2c_hid_free_buffers(ihid);
  1139		return ret;
  1140	}
  1141	

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

Attachment: .config.gz
Description: application/gzip


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