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SubjectRe: [PATCH v5 0/5] drm/dsi: DSI for devices with different control bus
On Fri, Feb 12, 2016 at 02:48:29PM +0530, 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.c 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 v5:
> - Simplify refactoring as suggested by Thierry.
> - Use abbreviations correctly.
> - Drop "drm/dsi: Check for used channels"
> - Return the correct encoded error code for of_mipi_dsi_device_add
> when CONFIG_OF is disabled.
> - Use mipi_dsi_device_unregister to implement mipi_dsi_remove_device_fn()
> too.
>
> 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 (5):
> drm/dsi: check for CONFIG_OF when defining of_mipi_dsi_device_add
> drm/dsi: Use mipi_dsi_device_register_full for DSI device creation
> drm/dsi: Try to match non-DT DSI devices
> drm/dsi: Add routine to unregister a DSI device
> drm/dsi: Get DSI host by DT device node
>
> drivers/gpu/drm/drm_mipi_dsi.c | 127 +++++++++++++++++++++++++++++++++++++----
> include/drm/drm_mipi_dsi.h | 26 +++++++++
> 2 files changed, 141 insertions(+), 12 deletions(-)

I've applied this with minor fixups and cleanups to the commit messages.

Thanks,
Thierry
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