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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