Re: [PATCH v6 07/29] fpga: dfl: add chardev support for feature devices

[Alan Tull]

On Tue, Jun 12, 2018 at 5:10 AM, Wu Hao <hao.wu@xxxxxxxxx> wrote:
> For feature devices drivers, both the FPGA Management Engine (FME) and
> Accelerated Function Unit (AFU) driver need to expose user interfaces via
> the device file, for example, mmap and ioctls.
>
> This patch adds chardev support in the dfl driver for feature devices,
> FME and AFU. It reserves the chardev regions for FME and AFU, and provide
> interfaces for FME and AFU driver to register their device file operations.
>
> Signed-off-by: Tim Whisonant <tim.whisonant@xxxxxxxxx>
> Signed-off-by: Enno Luebbers <enno.luebbers@xxxxxxxxx>
> Signed-off-by: Shiva Rao <shiva.rao@xxxxxxxxx>
> Signed-off-by: Christopher Rauer <christopher.rauer@xxxxxxxxx>
> Signed-off-by: Zhang Yi <yi.z.zhang@xxxxxxxxx>
> Signed-off-by: Xiao Guangrong <guangrong.xiao@xxxxxxxxxxxxxxx>
> Signed-off-by: Wu Hao <hao.wu@xxxxxxxxx>
Acked-by: Alan Tull <atull@xxxxxxxxxx>

> ---
> v2: rebased
> v3: move chardev support to fpga-dfl framework
> v4: rebase, and add more comments in code.
> v5: rebase, and add dfl_ prefix to APIs and data structures.
> v6: add index in dfl_devs to link to dfl_chrdevs.
>     improve naming on APIs.