ASoC: es8316: Handle optional IRQ assignment

The driver is able to work fine without relying on a mandatory interrupt
being assigned to the I2C device. This is only needed when making use of
the jack-detect support.

However, the following warning message is always emitted when there is
no such interrupt available:

  es8316 0-0011: Failed to get IRQ 0: -22

Do not attempt to request an IRQ if it is not available/valid. This also
ensures the rather misleading message is not displayed anymore.

Also note the IRQ validation relies on commit dab472eb ("i2c /
ACPI: Use 0 to indicate that device does not have interrupt assigned").

Fixes: 82225766 ("ASoC: es8316: Add jack-detect support")
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230328094901.50763-1-cristian.ciocaltea@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/es8316.c

@@ -842,6 +842,7 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client)
 	es8316->irq = i2c_client->irq;
 	mutex_init(&es8316->lock);
 
+	if (es8316->irq > 0) {
 		ret = devm_request_threaded_irq(dev, es8316->irq, NULL, es8316_irq,
 						IRQF_TRIGGER_HIGH | IRQF_ONESHOT | IRQF_NO_AUTOEN,
 						"es8316", es8316);
@@ -849,6 +850,7 @@ static int es8316_i2c_probe(struct i2c_client *i2c_client)
 			dev_warn(dev, "Failed to get IRQ %d: %d\n", es8316->irq, ret);
 			es8316->irq = -ENXIO;
 		}
+	}
 
 	return devm_snd_soc_register_component(&i2c_client->dev,
 				      &soc_component_dev_es8316,