mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
c0f234ff90
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on the number
of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC controller,
Freescale PCIe and Ethernet controller, Himax LCDs and Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new helpers, minor
tweaks and fixes, making fwnode usage consistent etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer dereference in
the kernel by opening a device file, forcing a driver unbind and then calling
one of the syscalls on the associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected to other
GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers and use
this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers
-----BEGIN PGP SIGNATURE-----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=zg1O
-----END PGP SIGNATURE-----
Merge tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have a new GPIO multiplexer driver, bunch of driver updates and
refactoring in the core GPIO library.
GPIO core:
- teach gpiolib to work with software nodes for HW description
- remove ARCH_NR_GPIOS treewide as we no longer impose any limit on
the number of GPIOS since the allocation became entirely dynamic
- add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC
controller, Freescale PCIe and Ethernet controller, Himax LCDs and
Mediatek mt2701
- refactor OF quirk code
- some general refactoring of the OF and ACPI code, adding new
helpers, minor tweaks and fixes, making fwnode usage consistent
etc.
GPIO uAPI:
- fix an issue where the user-space can trigger a NULL-pointer
dereference in the kernel by opening a device file, forcing a
driver unbind and then calling one of the syscalls on the
associated file descriptor
New drivers:
- add gpio-latch: a new GPIO multiplexer based on latches connected
to other GPIOs
Driver updates:
- convert i2c GPIO expanders to using .probe_new()
- drop the gpio-sta2x11 driver
- factor out common code for the ACCES IDIO-16 family of controllers
and use this new library wherever applicable in drivers
- add DT support to gpio-hisi
- allow building gpio-davinci as a module and increase its maxItems
property
- add support for a new model to gpio-pca9570
- other minor changes to various drivers"
* tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (66 commits)
gpio: sim: set a limit on the number of GPIOs
gpiolib: protect the GPIO device against being dropped while in use by user-space
gpiolib: cdev: fix NULL-pointer dereferences
gpiolib: Provide to_gpio_device() helper
gpiolib: Unify access to the device properties
gpio: Do not include <linux/kernel.h> when not really needed.
gpio: pcf857x: Convert to i2c's .probe_new()
gpio: pca953x: Convert to i2c's .probe_new()
gpio: max732x: Convert to i2c's .probe_new()
dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names
gpiolib: ensure that fwnode is properly set
gpio: sl28cpld: Replace irqchip mask_invert with unmask_base
gpiolib: of: Use correct fwnode for DT-probed chips
gpiolib: of: Drop redundant check in of_mm_gpiochip_remove()
gpiolib: of: Prepare of_mm_gpiochip_add_data() for fwnode
gpiolib: add support for software nodes
gpiolib: consolidate GPIO lookups
gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers
gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes
gpiolib: acpi: change acpi_find_gpio() to accept firmware node
...
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* ACPI helpers for GPIO API
|
|
*
|
|
* Copyright (C) 2012,2019 Intel Corporation
|
|
*/
|
|
|
|
#ifndef GPIOLIB_ACPI_H
|
|
#define GPIOLIB_ACPI_H
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/gpio/consumer.h>
|
|
|
|
struct acpi_device;
|
|
struct device;
|
|
struct fwnode_handle;
|
|
|
|
struct gpio_chip;
|
|
struct gpio_desc;
|
|
struct gpio_device;
|
|
|
|
#ifdef CONFIG_ACPI
|
|
void acpi_gpiochip_add(struct gpio_chip *chip);
|
|
void acpi_gpiochip_remove(struct gpio_chip *chip);
|
|
|
|
void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev);
|
|
|
|
void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
|
|
void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
|
|
|
|
struct gpio_desc *acpi_find_gpio(struct fwnode_handle *fwnode,
|
|
const char *con_id,
|
|
unsigned int idx,
|
|
enum gpiod_flags *dflags,
|
|
unsigned long *lookupflags);
|
|
|
|
int acpi_gpio_count(struct device *dev, const char *con_id);
|
|
#else
|
|
static inline void acpi_gpiochip_add(struct gpio_chip *chip) { }
|
|
static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { }
|
|
|
|
static inline void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) { }
|
|
|
|
static inline void
|
|
acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
|
|
|
|
static inline void
|
|
acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
|
|
|
|
static inline struct gpio_desc *
|
|
acpi_find_gpio(struct fwnode_handle *fwnode, const char *con_id,
|
|
unsigned int idx, enum gpiod_flags *dflags,
|
|
unsigned long *lookupflags)
|
|
{
|
|
return ERR_PTR(-ENOENT);
|
|
}
|
|
static inline int acpi_gpio_count(struct device *dev, const char *con_id)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
#endif /* GPIOLIB_ACPI_H */
|