mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
c7d28eca1d
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO line
may loose its state during suspend/resume of the system to save
power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes.
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Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.13 series.
Some administrativa:
I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
driver coming in through this tree, along with a whole bunch of Exar
8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
where they are ACKed by Andy Shevchenko.
Speaking about drivers/platform/* there is also a bunch of ACPI stuff
coming through that route, again ACKed by Andy.
The MCP23S08 changes are coming in here as well. You already have the
commits in your tree, so this is just a result of sharing an immutable
branch between pin control and GPIO.
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO
line may loose its state during suspend/resume of the system to
save power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes"
* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
serial: exar: Add support for IOT2040 device
gpio-exar/8250-exar: Make set of exported GPIOs configurable
platform: Accept const properties
serial: exar: Factor out platform hooks
gpio-exar/8250-exar: Rearrange gpiochip parenthood
gpio: exar: Fix iomap request
gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
serial: uapi: Add support for bus termination
gpio: rcar: Add R8A7743 (RZ/G1M) support
gpio: gpio-wcove: Fix GPIO control register offset calculation
gpio: lp87565: Add support for GPIO
gpio: dwapb: fix missing first irq for edgeboth irq type
MAINTAINERS: Take maintainership for GPIO ACPI support
gpio: exar: Fix reading of directions and values
gpio: exar: Allocate resources on behalf of the platform device
gpio-exar/8250-exar: Fix passing in of parent PCI device
gpio: mockup: use devm_kcalloc() where applicable
gpio: mockup: add myself as author
gpio: mockup: improve the error message
gpio: mockup: don't return magic numbers from probe()
...
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
#ifndef __LINUX_GPIO_MACHINE_H
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#define __LINUX_GPIO_MACHINE_H
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#include <linux/types.h>
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#include <linux/list.h>
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enum gpio_lookup_flags {
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GPIO_ACTIVE_HIGH = (0 << 0),
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GPIO_ACTIVE_LOW = (1 << 0),
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GPIO_OPEN_DRAIN = (1 << 1),
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GPIO_OPEN_SOURCE = (1 << 2),
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GPIO_SLEEP_MAINTAIN_VALUE = (0 << 3),
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GPIO_SLEEP_MAY_LOOSE_VALUE = (1 << 3),
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};
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/**
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* struct gpiod_lookup - lookup table
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* @chip_label: name of the chip the GPIO belongs to
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* @chip_hwnum: hardware number (i.e. relative to the chip) of the GPIO
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* @con_id: name of the GPIO from the device's point of view
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* @idx: index of the GPIO in case several GPIOs share the same name
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* @flags: mask of GPIO_* values
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*
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* gpiod_lookup is a lookup table for associating GPIOs to specific devices and
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* functions using platform data.
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*/
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struct gpiod_lookup {
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const char *chip_label;
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u16 chip_hwnum;
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const char *con_id;
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unsigned int idx;
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enum gpio_lookup_flags flags;
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};
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struct gpiod_lookup_table {
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struct list_head list;
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const char *dev_id;
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struct gpiod_lookup table[];
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};
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/*
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* Simple definition of a single GPIO under a con_id
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*/
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#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _con_id, _flags) \
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GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, 0, _flags)
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/*
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* Use this macro if you need to have several GPIOs under the same con_id.
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* Each GPIO needs to use a different index and can be accessed using
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* gpiod_get_index()
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*/
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#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _con_id, _idx, _flags) \
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{ \
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.chip_label = _chip_label, \
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.chip_hwnum = _chip_hwnum, \
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.con_id = _con_id, \
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.idx = _idx, \
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.flags = _flags, \
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}
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#ifdef CONFIG_GPIOLIB
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void gpiod_add_lookup_table(struct gpiod_lookup_table *table);
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void gpiod_remove_lookup_table(struct gpiod_lookup_table *table);
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#else
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static inline
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void gpiod_add_lookup_table(struct gpiod_lookup_table *table) {}
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static inline
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void gpiod_remove_lookup_table(struct gpiod_lookup_table *table) {}
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#endif
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#endif /* __LINUX_GPIO_MACHINE_H */
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