intel-gpio for v5.18-1

* Set IRQ bus token in gpio-crystalcove to avoid debugfs error
 * Check return value of kstrdup() in gpio-merrifield to error out earlier
 * Clean up couple of drivers from unneeded of_node usage
 * Allow gpio-tps68470 to be built as module to reduce memory foot print
 
 The following is an automated git shortlog grouped by driver:
 
 altera-a10sr:
  -  Switch to use fwnode instead of of_node
 
 crystalcove:
  -  Set IRQ domain bus token to DOMAIN_BUS_WIRED
 
 merrifield:
  -  check the return value of devm_kstrdup()
 
 tegra:
  -  Get rid of duplicate of_node assignment
 
 tps68470:
  -  Allow building as module
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Merge tag 'intel-gpio-v5.18-1' of gitolite.kernel.org:pub/scm/linux/kernel/git/andy/linux-gpio-intel into gpio/for-next

intel-gpio for v5.18-1

* Set IRQ bus token in gpio-crystalcove to avoid debugfs error
* Check return value of kstrdup() in gpio-merrifield to error out earlier
* Clean up couple of drivers from unneeded of_node usage
* Allow gpio-tps68470 to be built as module to reduce memory foot print

drivers/gpio/Kconfig

@@ -1390,7 +1390,7 @@ config GPIO_TPS65912
 	  This driver supports TPS65912 GPIO chip.
 
 config GPIO_TPS68470
-	bool "TPS68470 GPIO"
+	tristate "TPS68470 GPIO"
 	depends on INTEL_SKL_INT3472
 	help
 	  Select this option to enable GPIO driver for the TPS68470
@@ -1400,10 +1400,6 @@ config GPIO_TPS68470
 	  input or output as appropriate, the sensor related GPIOs
 	  are "output only" GPIOs.
 
-	  This driver config is bool, as the GPIO functionality
-	  of the TPS68470 must be available before dependent
-	  drivers are loaded.
-
 config GPIO_TQMX86
 	tristate "TQ-Systems QTMX86 GPIO"
 	depends on MFD_TQMX86 || COMPILE_TEST

drivers/gpio/gpio-altera-a10sr.c

@@ -10,6 +10,7 @@
 #include <linux/gpio/driver.h>
 #include <linux/mfd/altera-a10sr.h>
 #include <linux/module.h>
+#include <linux/property.h>
 
 /**
  * struct altr_a10sr_gpio - Altera Max5 GPIO device private data structure
@@ -88,7 +89,7 @@ static int altr_a10sr_gpio_probe(struct platform_device *pdev)
 
 	gpio->gp = altr_a10sr_gc;
 	gpio->gp.parent = pdev->dev.parent;
-	gpio->gp.of_node = pdev->dev.of_node;
+	gpio->gp.fwnode = dev_fwnode(&pdev->dev);
 
 	return devm_gpiochip_add_data(&pdev->dev, &gpio->gp, gpio);
 }

drivers/gpio/gpio-crystalcove.c

@@ -370,7 +370,14 @@ static int crystalcove_gpio_probe(struct platform_device *pdev)
 		return retval;
 	}
 
-	return devm_gpiochip_add_data(&pdev->dev, &cg->chip, cg);
+	retval = devm_gpiochip_add_data(&pdev->dev, &cg->chip, cg);
+	if (retval)
+		return retval;
+
+	/* Distuingish IRQ domain from others sharing (MFD) the same fwnode */
+	irq_domain_update_bus_token(cg->chip.irq.domain, DOMAIN_BUS_WIRED);
+
+	return 0;
 }
 
 static struct platform_driver crystalcove_gpio_driver = {

drivers/gpio/gpio-merrifield.c

@@ -409,6 +409,9 @@ static int mrfld_gpio_add_pin_ranges(struct gpio_chip *chip)
 	int retval;
 
 	pinctrl_dev_name = mrfld_gpio_get_pinctrl_dev_name(priv);
+	if (!pinctrl_dev_name)
+		return -ENOMEM;
+
 	for (i = 0; i < ARRAY_SIZE(mrfld_gpio_ranges); i++) {
 		range = &mrfld_gpio_ranges[i];
 		retval = gpiochip_add_pin_range(&priv->chip, pinctrl_dev_name,

drivers/gpio/gpio-tegra.c

@@ -691,7 +691,6 @@ static int tegra_gpio_probe(struct platform_device *pdev)
 	tgi->gc.base			= 0;
 	tgi->gc.ngpio			= tgi->bank_count * 32;
 	tgi->gc.parent			= &pdev->dev;
-	tgi->gc.of_node			= pdev->dev.of_node;
 
 	tgi->ic.name			= "GPIO";
 	tgi->ic.irq_ack			= tegra_gpio_irq_ack;

drivers/gpio/gpio-tps68470.c

@@ -154,5 +154,8 @@ static struct platform_driver tps68470_gpio_driver = {
 	},
 	.probe = tps68470_gpio_probe,
 };
+module_platform_driver(tps68470_gpio_driver);
 
-builtin_platform_driver(tps68470_gpio_driver)
+MODULE_ALIAS("platform:tps68470-gpio");
+MODULE_DESCRIPTION("GPIO driver for TPS68470 PMIC");
+MODULE_LICENSE("GPL v2");