@@ -239,22 +239,6 @@ mapping and is thus transparent to GPIO consumers.
 A set of functions such as gpiod_set_value() is available to work with
 the new descriptor-oriented interface.
 
-Boards using platform data can also hog GPIO lines by defining GPIO hog tables.
-
-.. code-block:: c
-
-        struct gpiod_hog gpio_hog_table[] = {
-                GPIO_HOG("gpio.0", 10, "foo", GPIO_ACTIVE_LOW, GPIOD_OUT_HIGH),
-                { }
-        };
-
-And the table can be added to the board code as follows::
-
-        gpiod_add_hogs(gpio_hog_table);
-
-The line will be hogged as soon as the gpiochip is created or - in case the
-chip was created earlier - when the hog table is registered.
-
 Arrays of pins
 --------------
 In addition to requesting pins belonging to a function one by one, a device may

@@ -103,9 +103,6 @@ static DEFINE_MUTEX(gpio_devices_lock);
 /* Ensures coherence during read-only accesses to the list of GPIO devices. */
 DEFINE_STATIC_SRCU(gpio_devices_srcu);
 
-static DEFINE_MUTEX(gpio_machine_hogs_mutex);
-static LIST_HEAD(gpio_machine_hogs);
-
 const char *const gpio_suffixes[] = { "gpios", "gpio", NULL };
 
 static void gpiochip_free_hogs(struct gpio_chip *gc);

@@ -930,36 +927,6 @@ static int gpiochip_setup_dev(struct gpio_chip *gc)
 	return ret;
 }
 
-static void gpiochip_machine_hog(struct gpio_chip *gc, struct gpiod_hog *hog)
-{
-	struct gpio_desc *desc;
-	int rv;
-
-	desc = gpiochip_get_desc(gc, hog->chip_hwnum);
-	if (IS_ERR(desc)) {
-		gpiochip_err(gc, "%s: unable to get GPIO desc: %ld\n",
-			     __func__, PTR_ERR(desc));
-		return;
-	}
-
-	rv = gpiod_hog(desc, hog->line_name, hog->lflags, hog->dflags);
-	if (rv)
-		gpiod_err(desc, "%s: unable to hog GPIO line (%s:%u): %d\n",
-			  __func__, gc->label, hog->chip_hwnum, rv);
-}
-
-static void gpiochip_machine_hog_lines(struct gpio_chip *gc)
-{
-	struct gpiod_hog *hog;
-
-	guard(mutex)(&gpio_machine_hogs_mutex);
-
-	list_for_each_entry(hog, &gpio_machine_hogs, list) {
-		if (!strcmp(gc->label, hog->chip_label))
-			gpiochip_machine_hog(gc, hog);
-	}
-}
-
 int gpiochip_add_hog(struct gpio_chip *gc, struct fwnode_handle *fwnode)
 {
 	struct fwnode_handle *gc_node = dev_fwnode(&gc->gpiodev->dev);

@@ -1049,8 +1016,6 @@ static int gpiochip_hog_lines(struct gpio_chip *gc)
 			return ret;
 	}
 
-	gpiochip_machine_hog_lines(gc);
-
 	return 0;
 }
 

@@ -4584,42 +4549,6 @@ void gpiod_remove_lookup_table(struct gpiod_lookup_table *table)
 }
 EXPORT_SYMBOL_GPL(gpiod_remove_lookup_table);
 
-/**
- * gpiod_add_hogs() - register a set of GPIO hogs from machine code
- * @hogs: table of gpio hog entries with a zeroed sentinel at the end
- */
-void gpiod_add_hogs(struct gpiod_hog *hogs)
-{
-	struct gpiod_hog *hog;
-
-	guard(mutex)(&gpio_machine_hogs_mutex);
-
-	for (hog = &hogs[0]; hog->chip_label; hog++) {
-		list_add_tail(&hog->list, &gpio_machine_hogs);
-
-		/*
-		 * The chip may have been registered earlier, so check if it
-		 * exists and, if so, try to hog the line now.
-		 */
-		struct gpio_device *gdev __free(gpio_device_put) =
-				gpio_device_find_by_label(hog->chip_label);
-		if (gdev)
-			gpiochip_machine_hog(gpio_device_get_chip(gdev), hog);
-	}
-}
-EXPORT_SYMBOL_GPL(gpiod_add_hogs);
-
-void gpiod_remove_hogs(struct gpiod_hog *hogs)
-{
-	struct gpiod_hog *hog;
-
-	guard(mutex)(&gpio_machine_hogs_mutex);
-
-	for (hog = &hogs[0]; hog->chip_label; hog++)
-		list_del(&hog->list);
-}
-EXPORT_SYMBOL_GPL(gpiod_remove_hogs);
-
 static bool gpiod_match_lookup_table(struct device *dev,
 				     const struct gpiod_lookup_table *table)
 {

@@ -46,23 +46,6 @@ struct gpiod_lookup_table {
 	struct gpiod_lookup table[];
 };
 
-/**
- * struct gpiod_hog - GPIO line hog table
- * @chip_label: name of the chip the GPIO belongs to
- * @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
- * @line_name: consumer name for the hogged line
- * @lflags: bitmask of gpio_lookup_flags GPIO_* values
- * @dflags: GPIO flags used to specify the direction and value
- */
-struct gpiod_hog {
-	struct list_head list;
-	const char *chip_label;
-	u16 chip_hwnum;
-	const char *line_name;
-	unsigned long lflags;
-	int dflags;
-};
-
 /*
  * Helper for lookup tables with just one single lookup for a device.
  */

@@ -95,24 +78,10 @@ static struct gpiod_lookup_table _name = {				\
 	.flags = _flags,                                                  \
 }
 
-/*
- * Simple definition of a single GPIO hog in an array.
- */
-#define GPIO_HOG(_chip_label, _chip_hwnum, _line_name, _lflags, _dflags)  \
-(struct gpiod_hog) {                                                      \
-	.chip_label = _chip_label,                                        \
-	.chip_hwnum = _chip_hwnum,                                        \
-	.line_name = _line_name,                                          \
-	.lflags = _lflags,                                                \
-	.dflags = _dflags,                                                \
-}
-
 #ifdef CONFIG_GPIOLIB
 void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
 void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n);
 void gpiod_remove_lookup_table(struct gpiod_lookup_table *table);
-void gpiod_add_hogs(struct gpiod_hog *hogs);
-void gpiod_remove_hogs(struct gpiod_hog *hogs);
 #else /* ! CONFIG_GPIOLIB */
 static inline
 void gpiod_add_lookup_table(struct gpiod_lookup_table *table) {}

@@ -120,8 +89,6 @@ static inline
 void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n) {}
 static inline
 void gpiod_remove_lookup_table(struct gpiod_lookup_table *table) {}
-static inline void gpiod_add_hogs(struct gpiod_hog *hogs) {}
-static inline void gpiod_remove_hogs(struct gpiod_hog *hogs) {}
 #endif /* CONFIG_GPIOLIB */
 
 #endif /* __LINUX_GPIO_MACHINE_H */