This patchset adds a driver support for Cadence GPIO controller.
Number of supported lines is configurable.
The driver initializes all pins as inputs in probe().
Currently it only supports level-sensitive interrupts.
The interrupts controller was tested with I2C and SPI IPs
acting as interrupt sources.
Changes since V2:
Added spinlocks in request, free and irq_set_type functions.
Changes since V1:
Switched to generic GPIO infrastructure.
Redesigned interrupts, now uses chained irqchip.
Drop support for edge-sensitive interrupts.
Restore bypass settings at unexport/remove.
Jan Kotas (2):
dt-bindings: gpio: Add bindings for Cadence GPIO
gpio: Add Cadence GPIO driver
.../devicetree/bindings/gpio/cdns,gpio.txt | 44 ++++
drivers/gpio/Kconfig | 8 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-cadence.c | 291 +++++++++++++++++++++
4 files changed, 344 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/cdns,gpio.txt
create mode 100644 drivers/gpio/gpio-cadence.c
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2.15.0
