Re: [PATCH 5/5] iio: temperature: mcp9600: add threshold events support

[kernel test robot <lkp@intel.com>]

Hi Dimitri,

kernel test robot noticed the following build errors:

[auto build test ERROR on jic23-iio/togreg]
[also build test ERROR on linus/master v6.9-rc6 next-20240430]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Dimitri-Fedrau/iio-temperature-mcp9600-set-channel2-member/20240430-200914
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git togreg
patch link:    https://lore.kernel.org/r/20240430120535.46097-6-dima.fedrau%40gmail.com
patch subject: [PATCH 5/5] iio: temperature: mcp9600: add threshold events support
config: i386-buildonly-randconfig-005-20240501 (https://download.01.org/0day-ci/archive/20240501/202405010420.2KNGPYh5-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240501/202405010420.2KNGPYh5-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405010420.2KNGPYh5-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/iio/temperature/mcp9600.c: In function 'mcp9600_probe_alerts':
>> drivers/iio/temperature/mcp9600.c:407:28: error: implicit declaration of function 'irq_get_trigger_type' [-Werror=implicit-function-declaration]
     407 |                 irq_type = irq_get_trigger_type(irq);
         |                            ^~~~~~~~~~~~~~~~~~~~
>> drivers/iio/temperature/mcp9600.c:408:33: error: 'IRQ_TYPE_EDGE_RISING' undeclared (first use in this function)
     408 |                 if (irq_type == IRQ_TYPE_EDGE_RISING)
         |                                 ^~~~~~~~~~~~~~~~~~~~
   drivers/iio/temperature/mcp9600.c:408:33: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors


vim +/irq_get_trigger_type +407 drivers/iio/temperature/mcp9600.c

   382	
   383	static int mcp9600_probe_alerts(struct iio_dev *indio_dev)
   384	{
   385		struct mcp9600_data *data = iio_priv(indio_dev);
   386		struct i2c_client *client = data->client;
   387		struct device *dev = &client->dev;
   388		struct fwnode_handle *fwnode = dev_fwnode(dev);
   389		unsigned int irq_type;
   390		int ret, irq, i;
   391		u8 val;
   392	
   393		/*
   394		 * alert1: hot junction, rising temperature
   395		 * alert2: hot junction, falling temperature
   396		 * alert3: cold junction, rising temperature
   397		 * alert4: cold junction, falling temperature
   398		 */
   399		for (i = 0; i < MCP9600_ALERT_COUNT; i++) {
   400			data->irq[i] = 0;
   401			mutex_init(&data->lock[i]);
   402			irq = fwnode_irq_get_byname(fwnode, mcp9600_alert_name[i]);
   403			if (irq <= 0)
   404				continue;
   405	
   406			val = 0;
 > 407			irq_type = irq_get_trigger_type(irq);
 > 408			if (irq_type == IRQ_TYPE_EDGE_RISING)
   409				val |= MCP9600_ALERT_CFG_ACTIVE_HIGH;
   410	
   411			if (i == MCP9600_ALERT2 || i == MCP9600_ALERT4)
   412				val |= MCP9600_ALERT_CFG_FALLING;
   413	
   414			if (i == MCP9600_ALERT3 || i == MCP9600_ALERT4)
   415				val |= MCP9600_ALERT_CFG_COLD_JUNCTION;
   416	
   417			ret = i2c_smbus_write_byte_data(client,
   418							MCP9600_ALERT_CFG(i + 1),
   419							val);
   420			if (ret < 0)
   421				return ret;
   422	
   423			ret = devm_request_threaded_irq(dev, irq, NULL,
   424							mcp9600_alert_handler,
   425							IRQF_ONESHOT, "mcp9600",
   426							indio_dev);
   427			if (ret)
   428				return ret;
   429	
   430			data->irq[i] = irq;
   431		}
   432	
   433		return 0;
   434	}
   435	

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