summaryrefslogtreecommitdiff
path: root/drivers/gpio
diff options
context:
space:
mode:
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-04-10 18:39:16 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-04-23 11:55:07 +0300
commitfed7026adc7c3a67f992d28d7a5309ff749d3776 (patch)
tree2faf940f9ccc34da39f71fb3209a692d49f13d0d /drivers/gpio
parent4050586b2beec8603d25ad7fc7ba15670143e6ba (diff)
downloadlinux-fed7026adc7c3a67f992d28d7a5309ff749d3776.tar.xz
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>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpiolib-acpi.c14
-rw-r--r--drivers/gpio/gpiolib-of.c11
-rw-r--r--drivers/gpio/gpiolib.c13
-rw-r--r--drivers/gpio/gpiolib.h9
4 files changed, 24 insertions, 23 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index e9ddf66f2d14..962bdd89cd8f 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -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;
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 3a6bb53d89df..c5547df4f6cd 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -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;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 982845e8212c..e9909c07517b 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -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,
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 078ab17b96bf..5dbfce616ae1 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -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);
}