platform-drivers-x86 for v5.4-3

Users of Intel P-Unit IPC driver might be surprised by harmless warning.
 Thus, switch to API which doesn't issue a warning at all.
 
 I²C multi-instantiate driver continues to add slave devices even when IRQ
 resource is not found. For devices in the market IRQ resource is mandatory,
 so, fail the ->probe() of the parent driver to avoid slaves being probed.
 
 Avoid compiler warning due to unused variable in Classmate laptop driver.
 
 The following is an automated git shortlog grouped by driver:
 
 classmate-laptop:
  -  remove unused variable
 
 i2c-multi-instantiate:
  -  Fail the probe if no IRQ provided
 
 intel_punit_ipc:
  -  Avoid error message when retrieving IRQ
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Merge tag 'platform-drivers-x86-v5.4-3' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Andy Shevchenko:

 - Users of Intel P-Unit IPC driver might be surprised by harmless
   warning. Thus, switch to API which doesn't issue a warning at all.

 - I²C multi-instantiate driver continues to add slave devices even when
   IRQ resource is not found. For devices in the market IRQ resource is
   mandatory, so, fail the ->probe() of the parent driver to avoid
   slaves being probed.

 - Avoid compiler warning due to unused variable in Classmate laptop
   driver.

* tag 'platform-drivers-x86-v5.4-3' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: i2c-multi-instantiate: Fail the probe if no IRQ provided
  platform/x86: intel_punit_ipc: Avoid error message when retrieving IRQ
  platform/x86: classmate-laptop: remove unused variable

drivers/platform/x86/classmate-laptop.c

@@ -420,12 +420,6 @@ failed_sensitivity:
 
 static int cmpc_accel_remove_v4(struct acpi_device *acpi)
 {
-	struct input_dev *inputdev;
-	struct cmpc_accel *accel;
-
-	inputdev = dev_get_drvdata(&acpi->dev);
-	accel = dev_get_drvdata(&inputdev->dev);
-
 	device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr_v4);
 	device_remove_file(&acpi->dev, &cmpc_accel_g_select_attr_v4);
 	return cmpc_remove_acpi_notify_device(acpi);
@@ -656,12 +650,6 @@ failed_file:
 
 static int cmpc_accel_remove(struct acpi_device *acpi)
 {
-	struct input_dev *inputdev;
-	struct cmpc_accel *accel;
-
-	inputdev = dev_get_drvdata(&acpi->dev);
-	accel = dev_get_drvdata(&inputdev->dev);
-
 	device_remove_file(&acpi->dev, &cmpc_accel_sensitivity_attr);
 	return cmpc_remove_acpi_notify_device(acpi);
 }

drivers/platform/x86/i2c-multi-instantiate.c

@@ -108,6 +108,7 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
 			if (ret < 0) {
 				dev_dbg(dev, "Error requesting irq at index %d: %d\n",
 					inst_data[i].irq_idx, ret);
+				goto error;
 			}
 			board_info.irq = ret;
 			break;

drivers/platform/x86/intel_punit_ipc.c

@@ -293,9 +293,8 @@ static int intel_punit_ipc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, punit_ipcdev);
 
-	irq = platform_get_irq(pdev, 0);
+	irq = platform_get_irq_optional(pdev, 0);
 	if (irq < 0) {
-		punit_ipcdev->irq = 0;
 		dev_warn(&pdev->dev, "Invalid IRQ, using polling mode\n");
 	} else {
 		ret = devm_request_irq(&pdev->dev, irq, intel_punit_ioc,