diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 18 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.c | 10 | ||||
| -rw-r--r-- | drivers/gpio/gpiolib.h | 10 |
3 files changed, 24 insertions, 14 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 540cbc88c7a2..682070d20f00 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -71,29 +71,29 @@ static int acpi_gpiochip_find(struct gpio_chip *gc, void *data) * controller uses pin controller and the mapping is not contiguous the * offset might be different. */ -static int acpi_gpiochip_pin_to_gpio_offset(struct gpio_chip *chip, int pin) +static int acpi_gpiochip_pin_to_gpio_offset(struct gpio_device *gdev, int pin) { struct gpio_pin_range *pin_range; /* If there are no ranges in this chip, use 1:1 mapping */ - if (list_empty(&chip->pin_ranges)) + if (list_empty(&gdev->pin_ranges)) return pin; - list_for_each_entry(pin_range, &chip->pin_ranges, node) { + list_for_each_entry(pin_range, &gdev->pin_ranges, node) { const struct pinctrl_gpio_range *range = &pin_range->range; int i; if (range->pins) { for (i = 0; i < range->npins; i++) { if (range->pins[i] == pin) - return range->base + i - chip->base; + return range->base + i - gdev->base; } } else { if (pin >= range->pin_base && pin < range->pin_base + range->npins) { unsigned gpio_base; - gpio_base = range->base - chip->base; + gpio_base = range->base - gdev->base; return gpio_base + pin - range->pin_base; } } @@ -102,7 +102,7 @@ static int acpi_gpiochip_pin_to_gpio_offset(struct gpio_chip *chip, int pin) return -EINVAL; } #else -static inline int acpi_gpiochip_pin_to_gpio_offset(struct gpio_chip *chip, +static inline int acpi_gpiochip_pin_to_gpio_offset(struct gpio_device *gdev, int pin) { return pin; @@ -134,7 +134,7 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin) if (!chip) return ERR_PTR(-EPROBE_DEFER); - offset = acpi_gpiochip_pin_to_gpio_offset(chip, pin); + offset = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin); if (offset < 0) return ERR_PTR(offset); @@ -202,7 +202,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares, if (!handler) return AE_BAD_PARAMETER; - pin = acpi_gpiochip_pin_to_gpio_offset(chip, pin); + pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin); if (pin < 0) return AE_BAD_PARAMETER; @@ -673,7 +673,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, struct gpio_desc *desc; bool found; - pin = acpi_gpiochip_pin_to_gpio_offset(chip, pin); + pin = acpi_gpiochip_pin_to_gpio_offset(chip->gpiodev, pin); if (pin < 0) { status = AE_BAD_PARAMETER; goto out; diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 646dea4f96ff..28984bbc079c 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -532,8 +532,7 @@ int gpiochip_add_data(struct gpio_chip *chip, void *data) spin_unlock_irqrestore(&gpio_lock, flags); #ifdef CONFIG_PINCTRL - /* FIXME: move pin ranges to gpio_device */ - INIT_LIST_HEAD(&chip->pin_ranges); + INIT_LIST_HEAD(&gdev->pin_ranges); #endif status = gpiochip_set_desc_names(chip); @@ -1036,7 +1035,7 @@ int gpiochip_add_pingroup_range(struct gpio_chip *chip, gpio_offset, gpio_offset + pin_range->range.npins - 1, pinctrl_dev_get_devname(pctldev), pin_group); - list_add_tail(&pin_range->node, &chip->pin_ranges); + list_add_tail(&pin_range->node, &gdev->pin_ranges); return 0; } @@ -1085,7 +1084,7 @@ int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name, pinctl_name, pin_offset, pin_offset + npins - 1); - list_add_tail(&pin_range->node, &chip->pin_ranges); + list_add_tail(&pin_range->node, &gdev->pin_ranges); return 0; } @@ -1098,8 +1097,9 @@ EXPORT_SYMBOL_GPL(gpiochip_add_pin_range); void gpiochip_remove_pin_ranges(struct gpio_chip *chip) { struct gpio_pin_range *pin_range, *tmp; + struct gpio_device *gdev = chip->gpiodev; - list_for_each_entry_safe(pin_range, tmp, &chip->pin_ranges, node) { + list_for_each_entry_safe(pin_range, tmp, &gdev->pin_ranges, node) { list_del(&pin_range->node); pinctrl_remove_gpio_range(pin_range->pctldev, &pin_range->range); diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index d154984c71d9..5a36908fd39d 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -55,6 +55,16 @@ struct gpio_device { int base; u16 ngpio; struct list_head list; + +#ifdef CONFIG_PINCTRL + /* + * If CONFIG_PINCTRL is enabled, then gpio controllers can optionally + * describe the actual pin range which they serve in an SoC. This + * information would be used by pinctrl subsystem to configure + * corresponding pins for gpio usage. + */ + struct list_head pin_ranges; +#endif }; /** |