Merge tag 'gpio-v5.4-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

gpio: updates for v5.4

- use a helper variable for &pdev->dev in gpio-em
- tweak the ifdefs in GPIO headers
- fix function links in HTML docs
- remove an unneeded error message from ixp4xx
- use the optional clk_get in gpio-mxc instead of checking the return value
- a couple improvements in pca953x
- allow to build gpio-lpc32xx on non-lpc32xx targets

include/linux/gpio/driver.h

@@ -20,10 +20,6 @@ struct module;
 enum gpiod_flags;
 enum gpio_lookup_flags;
 
-#ifdef CONFIG_GPIOLIB
-
-#ifdef CONFIG_GPIOLIB_IRQCHIP
-
 struct gpio_chip;
 
 /**
@@ -242,7 +238,6 @@ struct gpio_irq_chip {
 	 */
 	void		(*irq_disable)(struct irq_data *data);
 };
-#endif /* CONFIG_GPIOLIB_IRQCHIP */
 
 /**
  * struct gpio_chip - abstract a GPIO controller
@@ -512,8 +507,6 @@ bool gpiochip_line_is_valid(const struct gpio_chip *chip, unsigned int offset);
 /* get driver data */
 void *gpiochip_get_data(struct gpio_chip *chip);
 
-struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
-
 struct bgpio_pdata {
 	const char *label;
 	int base;
@@ -549,9 +542,6 @@ static inline void gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *ch
 
 #endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */
 
-
-#if IS_ENABLED(CONFIG_GPIO_GENERIC)
-
 int bgpio_init(struct gpio_chip *gc, struct device *dev,
 	       unsigned long sz, void __iomem *dat, void __iomem *set,
 	       void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
@@ -564,10 +554,6 @@ int bgpio_init(struct gpio_chip *gc, struct device *dev,
 #define BGPIOF_READ_OUTPUT_REG_SET	BIT(4) /* reg_set stores output value */
 #define BGPIOF_NO_OUTPUT		BIT(5) /* only input */
 
-#endif /* CONFIG_GPIO_GENERIC */
-
-#ifdef CONFIG_GPIOLIB_IRQCHIP
-
 int gpiochip_irq_map(struct irq_domain *d, unsigned int irq,
 		     irq_hw_number_t hwirq);
 void gpiochip_irq_unmap(struct irq_domain *d, unsigned int irq);
@@ -656,15 +642,11 @@ static inline int gpiochip_irqchip_add_nested(struct gpio_chip *gpiochip,
 }
 #endif /* CONFIG_LOCKDEP */
 
-#endif /* CONFIG_GPIOLIB_IRQCHIP */
-
 int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset);
 void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset);
 int gpiochip_generic_config(struct gpio_chip *chip, unsigned offset,
 			    unsigned long config);
 
-#ifdef CONFIG_PINCTRL
-
 /**
  * struct gpio_pin_range - pin range controlled by a gpio chip
  * @node: list for maintaining set of pin ranges, used internally
@@ -677,6 +659,8 @@ struct gpio_pin_range {
 	struct pinctrl_gpio_range range;
 };
 
+#ifdef CONFIG_PINCTRL
+
 int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
 			   unsigned int gpio_offset, unsigned int pin_offset,
 			   unsigned int npins);
@@ -687,8 +671,6 @@ void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
 
 #else /* ! CONFIG_PINCTRL */
 
-struct pinctrl_dev;
-
 static inline int
 gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
 		       unsigned int gpio_offset, unsigned int pin_offset,
@@ -724,6 +706,10 @@ void devprop_gpiochip_set_names(struct gpio_chip *chip,
 int gpiochip_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
 void gpiochip_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
 
+#ifdef CONFIG_GPIOLIB
+
+struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
+
 #else /* CONFIG_GPIOLIB */
 
 static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
@@ -747,4 +733,4 @@ static inline void gpiochip_unlock_as_irq(struct gpio_chip *chip,
 }
 #endif /* CONFIG_GPIOLIB */
 
-#endif
+#endif /* __LINUX_GPIO_DRIVER_H */