Merge tag 'extcon-next-for-3.15' of git://git.kernel.org/pub/scm/linu…

…x/kernel/git/chanwoo/extcon into char-misc-next

Chanwoo writes:

Update extcon for v3.15

This patchset fix minor issue.

The extcon-palmas/gpio use SIMPLE_DEV_PM_OPS macro instead of legacy method.
OF helper function of extcon move in extcon core to remove separate of_extcon.c
and change the name of OF helper function as following because previous function
name is complicated and ambiguous naming.
- of_extcon_get_extcon_dev() -> extcon_get_edev_by_phandle()

drivers/extcon/Kconfig

@@ -14,10 +14,6 @@ if EXTCON
 
 comment "Extcon Device Drivers"
 
-config OF_EXTCON
-	def_tristate y
-	depends on OF
-
 config EXTCON_GPIO
 	tristate "GPIO extcon support"
 	depends on GPIOLIB

drivers/extcon/Makefile

@@ -2,8 +2,6 @@
 # Makefile for external connector class (extcon) devices
 #
 
-obj-$(CONFIG_OF_EXTCON)		+= of_extcon.o
-
 obj-$(CONFIG_EXTCON)		+= extcon-class.o
 obj-$(CONFIG_EXTCON_GPIO)	+= extcon-gpio.o
 obj-$(CONFIG_EXTCON_ADC_JACK)	+= extcon-adc-jack.o

drivers/extcon/extcon-class.c

@@ -31,6 +31,7 @@
 #include <linux/extcon.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
+#include <linux/of.h>
 
 /*
  * extcon_cable_name suggests the standard cable names for commonly used
@@ -818,6 +819,47 @@ void extcon_dev_unregister(struct extcon_dev *edev)
 }
 EXPORT_SYMBOL_GPL(extcon_dev_unregister);
 
+#ifdef CONFIG_OF
+/*
+ * extcon_get_edev_by_phandle - Get the extcon device from devicetree
+ * @dev - instance to the given device
+ * @index - index into list of extcon_dev
+ *
+ * return the instance of extcon device
+ */
+struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index)
+{
+	struct device_node *node;
+	struct extcon_dev *edev;
+
+	if (!dev->of_node) {
+		dev_err(dev, "device does not have a device node entry\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	node = of_parse_phandle(dev->of_node, "extcon", index);
+	if (!node) {
+		dev_err(dev, "failed to get phandle in %s node\n",
+			dev->of_node->full_name);
+		return ERR_PTR(-ENODEV);
+	}
+
+	edev = extcon_get_extcon_dev(node->name);
+	if (!edev) {
+		dev_err(dev, "unable to get extcon device : %s\n", node->name);
+		return ERR_PTR(-ENODEV);
+	}
+
+	return edev;
+}
+#else
+struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index)
+{
+	return ERR_PTR(-ENOSYS);
+}
+#endif /* CONFIG_OF */
+EXPORT_SYMBOL_GPL(extcon_get_edev_by_phandle);
+
 static int __init extcon_class_init(void)
 {
 	return create_extcon_class();

drivers/extcon/extcon-gpio.c

@@ -176,9 +176,7 @@ static int gpio_extcon_resume(struct device *dev)
 }
 #endif
 
-static const struct dev_pm_ops gpio_extcon_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
-};
+static SIMPLE_DEV_PM_OPS(gpio_extcon_pm_ops, NULL, gpio_extcon_resume);
 
 static struct platform_driver gpio_extcon_driver = {
 	.probe		= gpio_extcon_probe,

drivers/extcon/extcon-palmas.c

@@ -271,10 +271,7 @@ static int palmas_usb_resume(struct device *dev)
 };
 #endif
 
-static const struct dev_pm_ops palmas_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(palmas_usb_suspend,
-				palmas_usb_resume)
-};
+static SIMPLE_DEV_PM_OPS(palmas_pm_ops, palmas_usb_suspend, palmas_usb_resume);
 
 static struct of_device_id of_palmas_match_tbl[] = {
 	{ .compatible = "ti,palmas-usb", },

drivers/usb/dwc3/dwc3-omap.c

@@ -29,7 +29,6 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/extcon.h>
-#include <linux/extcon/of_extcon.h>
 #include <linux/regulator/consumer.h>
 
 #include <linux/usb/otg.h>
@@ -522,7 +521,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
 	dwc3_omap_enable_irqs(omap);
 
 	if (of_property_read_bool(node, "extcon")) {
-		edev = of_extcon_get_extcon_dev(dev, 0);
+		edev = extcon_get_edev_by_phandle(dev, 0);
 		if (IS_ERR(edev)) {
 			dev_vdbg(dev, "couldn't get extcon device\n");
 			ret = -EPROBE_DEFER;

include/linux/extcon.h

@@ -240,6 +240,12 @@ extern int extcon_register_notifier(struct extcon_dev *edev,
 				    struct notifier_block *nb);
 extern int extcon_unregister_notifier(struct extcon_dev *edev,
 				      struct notifier_block *nb);
+
+/*
+ * Following API get the extcon device from devicetree.
+ * This function use phandle of devicetree to get extcon device directly.
+ */
+extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev, int index);
 #else /* CONFIG_EXTCON */
 static inline int extcon_dev_register(struct extcon_dev *edev)
 {
@@ -324,5 +330,11 @@ static inline int extcon_unregister_interest(struct extcon_specific_cable_nb
 {
 	return 0;
 }
+
+static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
+							    int index)
+{
+	return ERR_PTR(-ENODEV);
+}
 #endif /* CONFIG_EXTCON */
 #endif /* __LINUX_EXTCON_H__ */