brcm63xx: remove linux 4.4 support

[openwrt/openwrt.git] / target / linux / brcm63xx / patches-4.4 / 000-4.6-01-gpio-Add-devm_-apis-for-gpiochip_add_data-and-gpioch.patch

diff --git a/target/linux/brcm63xx/patches-4.4/000-4.6-01-gpio-Add-devm_-apis-for-gpiochip_add_data-and-gpioch.patch b/target/linux/brcm63xx/patches-4.4/000-4.6-01-gpio-Add-devm_-apis-for-gpiochip_add_data-and-gpioch.patch
deleted file mode 100644 (file)
index ab2fb07..0000000
--- a/target/linux/brcm63xx/patches-4.4/000-4.6-01-gpio-Add-devm_-apis-for-gpiochip_add_data-and-gpioch.patch
+++ /dev/null
@@ -1,115 +0,0 @@
-From 0cf3292cde22f8843ae5d1eeb8466d8121243c1a Mon Sep 17 00:00:00 2001
-From: Laxman Dewangan <ldewangan@nvidia.com>
-Date: Mon, 15 Feb 2016 16:32:09 +0530
-Subject: [PATCH] gpio: Add devm_ apis for gpiochip_add_data and
- gpiochip_remove
-
-Add device managed APIs devm_gpiochip_add_data() and
-devm_gpiochip_remove() for the APIs gpiochip_add_data()
-and gpiochip_remove().
-
-This helps in reducing code in error path and sometimes
-removal of .remove callback for driver unbind.
-
-Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
----
- drivers/gpio/gpiolib.c      | 74 +++++++++++++++++++++++++++++++++++++++++++++
- include/linux/gpio/driver.h |  4 +++
- 2 files changed, 78 insertions(+)
-
---- a/drivers/gpio/gpiolib.c
-+++ b/drivers/gpio/gpiolib.c
-@@ -433,6 +433,80 @@ void gpiochip_remove(struct gpio_chip *c
- }
- EXPORT_SYMBOL_GPL(gpiochip_remove);
- 
-+static void devm_gpio_chip_release(struct device *dev, void *res)
-+{
-+      struct gpio_chip *chip = *(struct gpio_chip **)res;
-+
-+      gpiochip_remove(chip);
-+}
-+
-+static int devm_gpio_chip_match(struct device *dev, void *res, void *data)
-+
-+{
-+      struct gpio_chip **r = res;
-+
-+      if (!r || !*r) {
-+              WARN_ON(!r || !*r);
-+              return 0;
-+      }
-+
-+      return *r == data;
-+}
-+
-+/**
-+ * devm_gpiochip_add_data() - Resource manager piochip_add_data()
-+ * @dev: the device pointer on which irq_chip belongs to.
-+ * @chip: the chip to register, with chip->base initialized
-+ * Context: potentially before irqs will work
-+ *
-+ * Returns a negative errno if the chip can't be registered, such as
-+ * because the chip->base is invalid or already associated with a
-+ * different chip.  Otherwise it returns zero as a success code.
-+ *
-+ * The gpio chip automatically be released when the device is unbound.
-+ */
-+int devm_gpiochip_add_data(struct device *dev, struct gpio_chip *chip,
-+                         void *data)
-+{
-+      struct gpio_chip **ptr;
-+      int ret;
-+
-+      ptr = devres_alloc(devm_gpio_chip_release, sizeof(*ptr),
-+                           GFP_KERNEL);
-+      if (!ptr)
-+              return -ENOMEM;
-+
-+      ret = gpiochip_add_data(chip, data);
-+      if (ret < 0) {
-+              devres_free(ptr);
-+              return ret;
-+      }
-+
-+      *ptr = chip;
-+      devres_add(dev, ptr);
-+
-+      return 0;
-+}
-+EXPORT_SYMBOL_GPL(devm_gpiochip_add_data);
-+
-+/**
-+ * devm_gpiochip_remove() - Resource manager of gpiochip_remove()
-+ * @dev: device for which which resource was allocated
-+ * @chip: the chip to remove
-+ *
-+ * A gpio_chip with any GPIOs still requested may not be removed.
-+ */
-+void devm_gpiochip_remove(struct device *dev, struct gpio_chip *chip)
-+{
-+      int ret;
-+
-+      ret = devres_release(dev, devm_gpio_chip_release,
-+                           devm_gpio_chip_match, chip);
-+      if (!ret)
-+              WARN_ON(ret);
-+}
-+EXPORT_SYMBOL_GPL(devm_gpiochip_remove);
-+
- /**
-  * gpiochip_find() - iterator for locating a specific gpio_chip
-  * @data: data to pass to match function
---- a/include/linux/gpio/driver.h
-+++ b/include/linux/gpio/driver.h
-@@ -206,6 +206,10 @@ static inline int gpiochip_add(struct gp
-       return gpiochip_add_data(chip, NULL);
- }
- extern void gpiochip_remove(struct gpio_chip *chip);
-+extern int devm_gpiochip_add_data(struct device *dev, struct gpio_chip *chip,
-+                                void *data);
-+extern void devm_gpiochip_remove(struct device *dev, struct gpio_chip *chip);
-+
- extern struct gpio_chip *gpiochip_find(void *data,
-                             int (*match)(struct gpio_chip *chip, void *data));
-