pinctrl: Propagate firmware node from a parent device

When creating MFD platform devices the firmware node is left unset.
This, in particular, prevents GPIO library to use it for different
purposes. Propagate firmware node from the parent device and let
GPIO library do the right thing.

While at it, slightly modify the headers to reflect the usage of APIs.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20211216151227.58687-1-andriy.shevchenko@linux.intel.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/cirrus/pinctrl-madera-core.c

@@ -8,8 +8,10 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
+
 #include <linux/pinctrl/machine.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
@@ -1004,13 +1006,14 @@ static int madera_pin_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev, "%s\n", __func__);
 
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
 	priv->dev = &pdev->dev;
 	priv->madera = madera;
-	pdev->dev.of_node = madera->dev->of_node;
 
 	switch (madera->type) {
 	case CS47L15:

drivers/pinctrl/pinctrl-as3722.c

@@ -23,19 +23,20 @@
 #include <linux/delay.h>
 #include <linux/gpio/driver.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/mfd/as3722.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+
 #include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinmux.h>
-#include <linux/pm.h>
-#include <linux/slab.h>
 
 #include "core.h"
 #include "pinconf.h"
@@ -551,12 +552,13 @@ static int as3722_pinctrl_probe(struct platform_device *pdev)
 	struct as3722_pctrl_info *as_pci;
 	int ret;
 
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
 	as_pci = devm_kzalloc(&pdev->dev, sizeof(*as_pci), GFP_KERNEL);
 	if (!as_pci)
 		return -ENOMEM;
 
 	as_pci->dev = &pdev->dev;
-	as_pci->dev->of_node = pdev->dev.parent->of_node;
 	as_pci->as3722 = dev_get_drvdata(pdev->dev.parent);
 	platform_set_drvdata(pdev, as_pci);
 
@@ -578,7 +580,6 @@ static int as3722_pinctrl_probe(struct platform_device *pdev)
 
 	as_pci->gpio_chip = as3722_gpio_chip;
 	as_pci->gpio_chip.parent = &pdev->dev;
-	as_pci->gpio_chip.of_node = pdev->dev.parent->of_node;
 	ret = gpiochip_add_data(&as_pci->gpio_chip, as_pci);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Couldn't register gpiochip, %d\n", ret);

drivers/pinctrl/pinctrl-da9062.c

@@ -14,6 +14,7 @@
 #include <linux/bits.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 
 #include <linux/gpio/driver.h>
@@ -256,6 +257,8 @@ static int da9062_pctl_probe(struct platform_device *pdev)
 	struct da9062_pctl *pctl;
 	int i;
 
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
 	pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
 	if (!pctl)
 		return -ENOMEM;
@@ -277,9 +280,6 @@ static int da9062_pctl_probe(struct platform_device *pdev)
 	pctl->gc = reference_gc;
 	pctl->gc.label = dev_name(&pdev->dev);
 	pctl->gc.parent = &pdev->dev;
-#ifdef CONFIG_OF_GPIO
-	pctl->gc.of_node = parent->of_node;
-#endif
 
 	platform_set_drvdata(pdev, pctl);
 

drivers/pinctrl/pinctrl-max77620.c

@@ -10,14 +10,16 @@
  */
 
 #include <linux/mfd/max77620.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinmux.h>
-#include <linux/platform_device.h>
-#include <linux/regmap.h>
 
 #include "core.h"
 #include "pinconf.h"
@@ -551,12 +553,13 @@ static int max77620_pinctrl_probe(struct platform_device *pdev)
 	struct max77620_pctrl_info *mpci;
 	int i;
 
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
 	mpci = devm_kzalloc(&pdev->dev, sizeof(*mpci), GFP_KERNEL);
 	if (!mpci)
 		return -ENOMEM;
 
 	mpci->dev = &pdev->dev;
-	mpci->dev->of_node = pdev->dev.parent->of_node;
 	mpci->rmap = max77620->rmap;
 
 	mpci->pins = max77620_pins_desc;

drivers/pinctrl/pinctrl-rk805.c

@@ -13,17 +13,17 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/mfd/rk808.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/property.h>
+#include <linux/slab.h>
+
 #include <linux/pinctrl/consumer.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinmux.h>
-#include <linux/pm.h>
-#include <linux/slab.h>
 
 #include "core.h"
 #include "pinconf.h"
@@ -420,18 +420,18 @@ static int rk805_pinctrl_probe(struct platform_device *pdev)
 	struct rk805_pctrl_info *pci;
 	int ret;
 
+	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));
+
 	pci = devm_kzalloc(&pdev->dev, sizeof(*pci), GFP_KERNEL);
 	if (!pci)
 		return -ENOMEM;
 
 	pci->dev = &pdev->dev;
-	pci->dev->of_node = pdev->dev.parent->of_node;
 	pci->rk808 = dev_get_drvdata(pdev->dev.parent);
 
 	pci->pinctrl_desc = rk805_pinctrl_desc;
 	pci->gpio_chip = rk805_gpio_chip;
 	pci->gpio_chip.parent = &pdev->dev;
-	pci->gpio_chip.of_node = pdev->dev.parent->of_node;
 
 	platform_set_drvdata(pdev, pci);