Re: [PATCH v4 0/6] drm/dsi: DSI for devices with different control bus

[Archit Taneja]

Hi Thierry,

Can you pick up these DSI patches, or would it make more sense for
these to go via someone else?

Thanks,
Archit

On 12/10/2015 06:11 PM, Archit Taneja wrote:
> We are currently restricted when it comes to supporting DSI on devices
> that have a non-DSI control bus. For example, DSI encoder chips are
> available in the market that are configured via i2c. Configuring their
> registers via DSI bus is either optional or not available at all.
>
> These devices still need to pass DSI parameters (data lanes, mode flags
> etc) to the DSI host they are connected to. We don't have a way to do
> that at the moment.
>
> After some discussions on the previous RFC[1], we decided to support this
> by providing additional API in drm_mipi_dsi which lets us create new DSI
> devices without the need of them to have a DT node.
>
> [1]: https://lkml.org/lkml/2015/6/30/42
>
> Changes in v4:
> - Added a new patch that fixes build issues when CONFIG_OF is not set.
>
> Changes in v3:
>
> - Incorporated misc comments by Andrzej. Changed from RFC to a PATCH set.
> - Fixed htmldocs warnings.
>
> Archit Taneja (6):
>    drm/dsi: check for CONFIG_OF when defining of_mipi_dsi_device_add
>    drm/dsi: Refactor device creation
>    drm/dsi: Try to match non-DT dsi devices
>    drm/dsi: Check for used channels
>    drm/dsi: Add routine to unregister dsi device
>    drm/dsi: Get DSI host by DT device node
>
>   drivers/gpu/drm/drm_mipi_dsi.c | 144 ++++++++++++++++++++++++++++++++---------
>   include/drm/drm_mipi_dsi.h     |  29 +++++++++
>   2 files changed, 141 insertions(+), 32 deletions(-)

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