Hello, This series adds support for a new register interface supported by the Aspeed GPIO controller, present in at least the AST2600.
The new interface is a single register implementing an indirect command protocol that allows us to manipulate up to (at least) 208 GPIOs. This makes it possible to write very simple drivers for e.g. u-boot and jettison the need for the tedious data model required to deal with the old register layout. I've lightly tested the device consistency under Linux. The Linux driver is implemented in terms of the old interface, so data model consistency can be tested one way by poking the driver using the libgpiod tools and then the other using devmem to drive the new interface. Please review! Andrew Andrew Jeffery (3): hw: aspeed_gpio: Cleanup stray semicolon after switch hw: aspeed_gpio: Split GPIOSet handling from accessors hw: aspeed_gpio: Support the AST2600's indexed register interface hw/gpio/aspeed_gpio.c | 305 ++++++++++++++++++++++++++++------ include/hw/gpio/aspeed_gpio.h | 3 + 2 files changed, 261 insertions(+), 47 deletions(-) -- 2.32.0
