Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 21ddbe4..b70af92 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -18,10 +18,19 @@
struct gpio_desc;
/**
+ * Opaque descriptor for a structure of GPIO array attributes. This structure
+ * is attached to struct gpiod_descs obtained from gpiod_get_array() and can be
+ * passed back to get/set array functions in order to activate fast processing
+ * path if applicable.
+ */
+struct gpio_array;
+
+/**
* Struct containing an array of descriptors that can be obtained using
* gpiod_get_array().
*/
struct gpio_descs {
+ struct gpio_array *info;
unsigned int ndescs;
struct gpio_desc *desc[];
};
@@ -30,6 +39,7 @@
#define GPIOD_FLAGS_BIT_DIR_OUT BIT(1)
#define GPIOD_FLAGS_BIT_DIR_VAL BIT(2)
#define GPIOD_FLAGS_BIT_OPEN_DRAIN BIT(3)
+#define GPIOD_FLAGS_BIT_NONEXCLUSIVE BIT(4)
/**
* Optional flags that can be passed to one of gpiod_* to configure direction
@@ -94,6 +104,7 @@
devm_gpiod_get_array_optional(struct device *dev, const char *con_id,
enum gpiod_flags flags);
void devm_gpiod_put(struct device *dev, struct gpio_desc *desc);
+void devm_gpiod_unhinge(struct device *dev, struct gpio_desc *desc);
void devm_gpiod_put_array(struct device *dev, struct gpio_descs *descs);
int gpiod_get_direction(struct gpio_desc *desc);
@@ -104,36 +115,46 @@
/* Value get/set from non-sleeping context */
int gpiod_get_value(const struct gpio_desc *desc);
int gpiod_get_array_value(unsigned int array_size,
- struct gpio_desc **desc_array, int *value_array);
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
void gpiod_set_value(struct gpio_desc *desc, int value);
-void gpiod_set_array_value(unsigned int array_size,
- struct gpio_desc **desc_array, int *value_array);
+int gpiod_set_array_value(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
int gpiod_get_raw_value(const struct gpio_desc *desc);
int gpiod_get_raw_array_value(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array);
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
void gpiod_set_raw_value(struct gpio_desc *desc, int value);
int gpiod_set_raw_array_value(unsigned int array_size,
- struct gpio_desc **desc_array,
- int *value_array);
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
/* Value get/set from sleeping context */
int gpiod_get_value_cansleep(const struct gpio_desc *desc);
int gpiod_get_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array);
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
void gpiod_set_value_cansleep(struct gpio_desc *desc, int value);
-void gpiod_set_array_value_cansleep(unsigned int array_size,
- struct gpio_desc **desc_array,
- int *value_array);
+int gpiod_set_array_value_cansleep(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc);
int gpiod_get_raw_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array);
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value);
int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
- struct gpio_desc **desc_array,
- int *value_array);
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap);
int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce);
int gpiod_set_transitory(struct gpio_desc *desc, bool transitory);
@@ -142,21 +163,15 @@
int gpiod_cansleep(const struct gpio_desc *desc);
int gpiod_to_irq(const struct gpio_desc *desc);
-void gpiod_set_consumer_name(struct gpio_desc *desc, const char *name);
+int gpiod_set_consumer_name(struct gpio_desc *desc, const char *name);
/* Convert between the old gpio_ and new gpiod_ interfaces */
struct gpio_desc *gpio_to_desc(unsigned gpio);
int desc_to_gpio(const struct gpio_desc *desc);
/* Child properties interface */
-struct device_node;
struct fwnode_handle;
-struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
- struct device_node *node,
- const char *propname, int index,
- enum gpiod_flags dflags,
- const char *label);
struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
const char *propname, int index,
enum gpiod_flags dflags,
@@ -222,7 +237,16 @@
might_sleep();
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
+}
+
+static inline void devm_gpiod_unhinge(struct device *dev,
+ struct gpio_desc *desc)
+{
+ might_sleep();
+
+ /* GPIO can never have been requested */
+ WARN_ON(desc);
}
static inline void gpiod_put_array(struct gpio_descs *descs)
@@ -230,7 +254,7 @@
might_sleep();
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(descs);
}
static inline struct gpio_desc *__must_check
@@ -283,7 +307,7 @@
might_sleep();
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
}
static inline void devm_gpiod_put_array(struct device *dev,
@@ -292,32 +316,32 @@
might_sleep();
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(descs);
}
static inline int gpiod_get_direction(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
static inline int gpiod_direction_input(struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
static inline int gpiod_direction_output(struct gpio_desc *desc, int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
static inline int gpiod_direction_output_raw(struct gpio_desc *desc, int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
@@ -325,179 +349,180 @@
static inline int gpiod_get_value(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_get_array_value(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline void gpiod_set_value(struct gpio_desc *desc, int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
}
-static inline void gpiod_set_array_value(unsigned int array_size,
- struct gpio_desc **desc_array,
- int *value_array)
+static inline int gpiod_set_array_value(unsigned int array_size,
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
+ return 0;
}
static inline int gpiod_get_raw_value(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_get_raw_array_value(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
}
static inline int gpiod_set_raw_array_value(unsigned int array_size,
- struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_desc **desc_array,
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_get_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
}
-static inline void gpiod_set_array_value_cansleep(unsigned int array_size,
+static inline int gpiod_set_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
+ return 0;
}
static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_get_raw_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc,
int value)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
}
static inline int gpiod_set_raw_array_value_cansleep(unsigned int array_size,
struct gpio_desc **desc_array,
- int *value_array)
+ struct gpio_array *array_info,
+ unsigned long *value_bitmap)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc_array);
return 0;
}
static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
static inline int gpiod_set_transitory(struct gpio_desc *desc, bool transitory)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -ENOSYS;
}
static inline int gpiod_is_active_low(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_cansleep(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return 0;
}
static inline int gpiod_to_irq(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -EINVAL;
}
-static inline void gpiod_set_consumer_name(struct gpio_desc *desc, const char *name)
+static inline int gpiod_set_consumer_name(struct gpio_desc *desc,
+ const char *name)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
+ return -EINVAL;
}
static inline struct gpio_desc *gpio_to_desc(unsigned gpio)
{
- return ERR_PTR(-EINVAL);
+ return NULL;
}
static inline int desc_to_gpio(const struct gpio_desc *desc)
{
/* GPIO can never have been requested */
- WARN_ON(1);
+ WARN_ON(desc);
return -EINVAL;
}
/* Child properties interface */
-struct device_node;
struct fwnode_handle;
static inline
-struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
- struct device_node *node,
- const char *propname, int index,
- enum gpiod_flags dflags,
- const char *label)
-{
- return ERR_PTR(-ENOSYS);
-}
-
-static inline
struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
const char *propname, int index,
enum gpiod_flags dflags,
@@ -529,6 +554,111 @@
flags, label);
}
+#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_OF_GPIO)
+struct device_node;
+
+struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label);
+
+#else /* CONFIG_GPIOLIB && CONFIG_OF_GPIO */
+
+struct device_node;
+
+static inline
+struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+#endif /* CONFIG_GPIOLIB && CONFIG_OF_GPIO */
+
+#ifdef CONFIG_GPIOLIB
+struct device_node;
+
+struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
+ struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label);
+
+#else /* CONFIG_GPIOLIB */
+
+struct device_node;
+
+static inline
+struct gpio_desc *devm_gpiod_get_from_of_node(struct device *dev,
+ struct device_node *node,
+ const char *propname, int index,
+ enum gpiod_flags dflags,
+ const char *label)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+#endif /* CONFIG_GPIOLIB */
+
+struct acpi_gpio_params {
+ unsigned int crs_entry_index;
+ unsigned int line_index;
+ bool active_low;
+};
+
+struct acpi_gpio_mapping {
+ const char *name;
+ const struct acpi_gpio_params *data;
+ unsigned int size;
+
+/* Ignore IoRestriction field */
+#define ACPI_GPIO_QUIRK_NO_IO_RESTRICTION BIT(0)
+/*
+ * When ACPI GPIO mapping table is in use the index parameter inside it
+ * refers to the GPIO resource in _CRS method. That index has no
+ * distinction of actual type of the resource. When consumer wants to
+ * get GpioIo type explicitly, this quirk may be used.
+ */
+#define ACPI_GPIO_QUIRK_ONLY_GPIOIO BIT(1)
+
+ unsigned int quirks;
+};
+
+#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_ACPI)
+
+struct acpi_device;
+
+int acpi_dev_add_driver_gpios(struct acpi_device *adev,
+ const struct acpi_gpio_mapping *gpios);
+void acpi_dev_remove_driver_gpios(struct acpi_device *adev);
+
+int devm_acpi_dev_add_driver_gpios(struct device *dev,
+ const struct acpi_gpio_mapping *gpios);
+void devm_acpi_dev_remove_driver_gpios(struct device *dev);
+
+#else /* CONFIG_GPIOLIB && CONFIG_ACPI */
+
+struct acpi_device;
+
+static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
+ const struct acpi_gpio_mapping *gpios)
+{
+ return -ENXIO;
+}
+static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
+
+static inline int devm_acpi_dev_add_driver_gpios(struct device *dev,
+ const struct acpi_gpio_mapping *gpios)
+{
+ return -ENXIO;
+}
+static inline void devm_acpi_dev_remove_driver_gpios(struct device *dev) {}
+
+#endif /* CONFIG_GPIOLIB && CONFIG_ACPI */
+
+
#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
int gpiod_export(struct gpio_desc *desc, bool direction_may_change);