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 -- 2.15.0
