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gpiolib: Make use of enum gpio_lookup_flags consistent 

The library uses enum gpio_lookup_flags to define the possible
characteristics of GPIO pin. Since enumerator listed only individual
bits the common use of it is in a form of a bitmask of
gpio_lookup_flags GPIO_* values. The more correct type for this is
unsigned long.

Due to above convert all users to use unsigned long instead of
enum gpio_lookup_flags except enumerator definition.

While here, make field and parameter descriptions consistent as well.

Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2019-04-10 18:39:16 +03:00 committed by Linus Walleij
parent 4050586b2b
commit fed7026adc
5 changed files with 28 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpio/gpiolib-acpi.c
View File

@ -696,7 +696,7 @@ struct gpio_desc *acpi_find_gpio(struct device *dev,
const char *con_id,
unsigned int idx,
enum gpiod_flags *dflags,
enum gpio_lookup_flags *lookupflags)
unsigned long *lookupflags)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpi_gpio_info info;
@ -995,9 +995,12 @@ static void acpi_gpiochip_free_regions(struct acpi_gpio_chip *achip)
}
}
static struct gpio_desc *acpi_gpiochip_parse_own_gpio(
struct acpi_gpio_chip *achip, struct fwnode_handle *fwnode,
const char **name, unsigned int *lflags, unsigned int *dflags)
static struct gpio_desc *
acpi_gpiochip_parse_own_gpio(struct acpi_gpio_chip *achip,
struct fwnode_handle *fwnode,
const char **name,
unsigned long *lflags,
unsigned int *dflags)
{
struct gpio_chip *chip = achip->chip;
struct gpio_desc *desc;
@ -1040,7 +1043,8 @@ static void acpi_gpiochip_scan_gpios(struct acpi_gpio_chip *achip)
struct fwnode_handle *fwnode;
device_for_each_child_node(chip->parent, fwnode) {
unsigned int lflags, dflags;
unsigned long lflags;
unsigned int dflags;
struct gpio_desc *desc;
const char *name;
int ret;

11
drivers/gpio/gpiolib-of.c
View File

@ -287,8 +287,7 @@ static struct gpio_desc *of_find_regulator_gpio(struct device *dev, const char *
}
struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
unsigned int idx, unsigned long *flags)
{
char prop_name[32]; /* 32 is max size of property name */
enum of_gpio_flags of_flags;
@ -361,8 +360,8 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
* @chip: GPIO chip whose hog is parsed
* @idx: Index of the GPIO to parse
* @name: GPIO line name
* @lflags: gpio_lookup_flags - returned from of_find_gpio() or
* of_parse_own_gpio()
* @lflags: bitmask of gpio_lookup_flags GPIO_* values - returned from
* of_find_gpio() or of_parse_own_gpio()
* @dflags: gpiod_flags - optional GPIO initialization flags
*
* Returns GPIO descriptor to use with Linux GPIO API, or one of the errno
@ -371,7 +370,7 @@ struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
static struct gpio_desc *of_parse_own_gpio(struct device_node *np,
struct gpio_chip *chip,
unsigned int idx, const char **name,
enum gpio_lookup_flags *lflags,
unsigned long *lflags,
enum gpiod_flags *dflags)
{
struct device_node *chip_np;
@ -444,7 +443,7 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip)
struct gpio_desc *desc = NULL;
struct device_node *np;
const char *name;
enum gpio_lookup_flags lflags;
unsigned long lflags;
enum gpiod_flags dflags;
unsigned int i;
int ret;

13
drivers/gpio/gpiolib.c
View File

@ -3923,8 +3923,7 @@ found:
}
static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
unsigned int idx, unsigned long *flags)
{
struct gpio_desc *desc = ERR_PTR(-ENOENT);
struct gpiod_lookup_table *table;
@ -4080,8 +4079,8 @@ EXPORT_SYMBOL_GPL(gpiod_get_optional);
* gpiod_configure_flags - helper function to configure a given GPIO
* @desc: gpio whose value will be assigned
* @con_id: function within the GPIO consumer
* @lflags: gpio_lookup_flags - returned from of_find_gpio() or
* of_get_gpio_hog()
* @lflags: bitmask of gpio_lookup_flags GPIO_* values - returned from
* of_find_gpio() or of_get_gpio_hog()
* @dflags: gpiod_flags - optional GPIO initialization flags
*
* Return 0 on success, -ENOENT if no GPIO has been assigned to the
@ -4163,9 +4162,9 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
unsigned int idx,
enum gpiod_flags flags)
{
unsigned long lookupflags = 0;
struct gpio_desc *desc = NULL;
int status;
enum gpio_lookup_flags lookupflags = 0;
/* Maybe we have a device name, maybe not */
const char *devname = dev ? dev_name(dev) : "?";
@ -4403,8 +4402,8 @@ EXPORT_SYMBOL_GPL(gpiod_get_index_optional);
* gpiod_hog - Hog the specified GPIO desc given the provided flags
* @desc: gpio whose value will be assigned
* @name: gpio line name
* @lflags: gpio_lookup_flags - returned from of_find_gpio() or
* of_get_gpio_hog()
* @lflags: bitmask of gpio_lookup_flags GPIO_* values - returned from
* of_find_gpio() or of_get_gpio_hog()
* @dflags: gpiod_flags - optional GPIO initialization flags
*/
int gpiod_hog(struct gpio_desc *desc, const char *name,

9
drivers/gpio/gpiolib.h
View File

@ -17,7 +17,6 @@
#include <linux/cdev.h>
enum of_gpio_flags;
enum gpio_lookup_flags;
struct acpi_device;
/**
@ -95,7 +94,7 @@ static __maybe_unused const char * const gpio_suffixes[] = { "gpios", "gpio" };
struct gpio_desc *of_find_gpio(struct device *dev,
const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags);
unsigned long *lookupflags);
struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
const char *list_name, int index, enum of_gpio_flags *flags);
int of_gpiochip_add(struct gpio_chip *gc);
@ -104,7 +103,7 @@ void of_gpiochip_remove(struct gpio_chip *gc);
static inline struct gpio_desc *of_find_gpio(struct device *dev,
const char *con_id,
unsigned int idx,
enum gpio_lookup_flags *flags)
unsigned long *lookupflags)
{
return ERR_PTR(-ENOENT);
}
@ -131,7 +130,7 @@ struct gpio_desc *acpi_find_gpio(struct device *dev,
const char *con_id,
unsigned int idx,
enum gpiod_flags *dflags,
enum gpio_lookup_flags *lookupflags);
unsigned long *lookupflags);
struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode,
const char *propname, int index,
struct acpi_gpio_info *info);
@ -158,7 +157,7 @@ acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, struct acpi_gpio_info *inf
static inline struct gpio_desc *
acpi_find_gpio(struct device *dev, const char *con_id,
unsigned int idx, enum gpiod_flags *dflags,
enum gpio_lookup_flags *lookupflags)
unsigned long *lookupflags)
{
return ERR_PTR(-ENOENT);
}

8
include/linux/gpio/machine.h
View File

@ -22,7 +22,7 @@ enum gpio_lookup_flags {
* @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
* @con_id: name of the GPIO from the device's point of view
* @idx: index of the GPIO in case several GPIOs share the same name
* @flags: mask of GPIO_* values
* @flags: bitmask of gpio_lookup_flags GPIO_* values
*
* gpiod_lookup is a lookup table for associating GPIOs to specific devices and
* functions using platform data.
@ -32,7 +32,7 @@ struct gpiod_lookup {
u16 chip_hwnum;
const char *con_id;
unsigned int idx;
enum gpio_lookup_flags flags;
unsigned long flags;
};
struct gpiod_lookup_table {
@ -46,7 +46,7 @@ struct gpiod_lookup_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: mask of GPIO lookup flags
* @lflags: bitmask of gpio_lookup_flags GPIO_* values
* @dflags: GPIO flags used to specify the direction and value
*/
struct gpiod_hog {
@ -54,7 +54,7 @@ struct gpiod_hog {
const char *chip_label;
u16 chip_hwnum;
const char *line_name;
enum gpio_lookup_flags lflags;
unsigned long lflags;
int dflags;
};