Среда, 12 марта 2014, 16:53 +01:00 от Michael Grzeschik <[email protected]>: > This patch introduces the psdev driver. It is used to communicate to an > Altera passive serial connected FPGA by writing into an character > device. > > It simply initates the protocol on open and clocks the data into the > FPGA by using the underlying SPI bus on write. The used SPI bus can also > be an bitbang SPI bus. On close it will check for the response of the > FPGA and tells if the write process was successful.
As a suggestion, I want to advise you to use GPIO functions based on descriptors (xx_gpiod_xx()) for the new drivers. This will simplify code a bit, allows you to use the driver for non-DT boards without creating any new global headers for platform_data and eliminate the possible confusion with active levels for these GPIOs in the future. ---
