[PATCH RFC v2 0/3] Add a drm_aux-dev module.

[Rafael Antognolli]

Oops, sorry, this email shouldn't be in the patch set, please
disconsider it.

--
Rafael

On Fri, Sep 25, 2015 at 04:54:53PM -0700, Rafael Antognolli wrote:
> Second attempt at implementing a module that allows reading/writing arbitrary
> dpcd registers. Changes to this version:
> 	- lseek is used to select the register to read/write;
> 	- read/write are used instead of ioctl;
> 	- no blocking_notifier is used, just a direct callback.
> 
> One thing to notice is that I am not updating the file offset during read or
> write, which is kind of breaking the filesystem abstraction. But i2c-dev
> doesn't do it either, so I assumed it's fine.
> 
> Rafael Antognolli (3):
>   drm/dp: Keep a list of drm_dp_aux helper.
>   drm/dp: Store the drm_connector device pointer on the helper.
>   drm/dp: Add a drm_aux-dev module for reading/writing dpcd registers.
> 
>  drivers/gpu/drm/Kconfig         |   4 +
>  drivers/gpu/drm/Makefile        |   1 +
>  drivers/gpu/drm/drm_aux-dev.c   | 326 ++++++++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/drm_dp_helper.c |  73 +++++++++
>  drivers/gpu/drm/i915/intel_dp.c |   1 +
>  include/drm/drm_dp_helper.h     |   6 +
>  6 files changed, 411 insertions(+)
>  create mode 100644 drivers/gpu/drm/drm_aux-dev.c
> 
> -- 
> 2.4.3
>