Merge tag 'gpio-v5.6-1' 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 v5.6 kernel cycle.

This

Merge tag 'gpio-v5.6-1' 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 v5.6 kernel cycle.

This is a pretty calm cycle so far, nothing special going on really.
Some more changes will come in from the irqchip and pin control trees.

I also deleted an orphan include file for FMC that was dangling since
subsystem was removed.

Core changes:

- Document the usecases for the kernelspace vs userspace handling of
GPIOs.

- Handle MSI (message signalled interrupts) properly in the core
hierarchical irqdomain code.

- Fix a rare race condition while initializing the descriptor array.

New drivers:

- Xylon LogiCVC GPIO driver.

- WDC934x GPIO controller driver.

Driver improvements:

- Implemented suspend/resume in the Tegra driver.

- MPC8xx edge detection fixup.

- Properly convert ThunderX to use hierarchical irqdomain with
GPIOLIB_IRQCHIP on top of the revert of the previous buggy
switchover. This time it works (hopefully).

Misc:

- Drop a FMC remnant file <linux/ipmi-fru.h>

- A slew of fixes"

* tag 'gpio-v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (48 commits)
MAINTAINERS: Replace Tien Hock Loh as Altera PIO maintainer
gpiolib: hold gpio devices lock until ->descs array is initialised
gpio: aspeed-sgpio: fixed typos
gpio: mvebu: clear irq in edge cause register before unmask edge irq
gpiolib: Lower verbosity when allocating hierarchy irq
gpiolib: Remove duplicated function gpio_do_set_config()
gpio: Fix the no return statement warning
gpio: wcd934x: Add support to wcd934x gpio controller
gpiolib: remove set but not used variable 'config'
gpio: vx855: fixed a typo
gpio: mockup: sort headers alphabetically
gpio: mockup: update the license tag
gpio: Remove the unused flags
gpiolib: Set lockdep class for hierarchical irq domains
gpio: thunderx: Switch to GPIOLIB_IRQCHIP
gpiolib: Add the support for the msi parent domain
gpiolib: Add support for the irqdomain which doesn't use irq_fwspec as arg
gpio: Add use guidance documentation
dt-bindings: gpio: wcd934x: Add bindings for gpio
gpio: altera: change to platform_get_irq_optional to avoid false-positive error
...

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dt-bindings: mfd: Document the Xylon LogiCVC multi-function device

The LogiCVC is a display engine which also exposes GPIO functionality.
For this reason, it is described as a multi-function device

dt-bindings: mfd: Document the Xylon LogiCVC multi-function device

The LogiCVC is a display engine which also exposes GPIO functionality.
For this reason, it is described as a multi-function device that is expected
to provide register access to its children nodes for gpio and display.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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dt-bindings: mfd: Document the Xylon LogiCVC multi-function device

The LogiCVC is a display engine which also exposes GPIO functionality.
For this reason, it is described as a multi-function device

dt-bindings: mfd: Document the Xylon LogiCVC multi-function device

The LogiCVC is a display engine which also exposes GPIO functionality.
For this reason, it is described as a multi-function device that is expected
to provide register access to its children nodes for gpio and display.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20191203141243.251058-3-paul.kocialkowski@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

show more ...