Hi Vikas, On Tuesday 18 of December 2012 08:31:30 Vikas Sajjan wrote: > Hi Laurent, > > Thanks for the reply. > > On 17 December 2012 20:55, Laurent Pinchart < > > laurent.pinchart at ideasonboard.com> wrote: > > Hi Vikas, > > > > Sorry for the late reply. I now have more time to work on CDF, so > > delays should be much shorter. > > > > On Thursday 06 December 2012 10:51:15 Vikas Sajjan wrote: > > > Hi Laurent, > > > > > > I was thinking of porting CDF to samsung EXYNOS 5250 platform, what > > > I > > > > found > > > > > is that, the exynos display controller is MIPI DSI based controller. > > > > > > But if I look at CDF patches, it has only support for MIPI DBI based > > > > Display > > > > > controller. > > > > > > So my question is, do we have any generic framework for MIPI DSI > > > based > > > display controller? basically I wanted to know, how to go about > > > porting > > > > CDF > > > > > for such kind of display controller. > > > > MIPI DSI support is not available yet. The only reason for that is > > that I don't have any MIPI DSI hardware to write and test the code > > with :-) > > > > The common display framework should definitely support MIPI DSI. I > > think the > > existing MIPI DBI code could be used as a base, so the implementation > > shouldn't be too high. > > > > Yeah, i was also thinking in similar lines, below is my though for > > MIPI > > DSI support in CDF. > > o MIPI DSI support as part of CDF framework will expose > > ? mipi_dsi_register_device(mpi_device) (will be called mach-xxx-dt.c > file ) > > ? mipi_dsi_register_driver(mipi_driver, bus ops) (will be called from > platform specific init driver call ) > > ? bus ops will be > > o read data > > o write data > > o write command > > ? MIPI DSI will be registered as bus_register() > > When MIPI DSI probe is called, it (e.g., Exynos or OMAP MIPI DSI) will > initialize the MIPI DSI HW IP. > > This probe will also parse the DT file for MIPI DSI based panel, add > the panel device (device_add() ) to kernel and register the display > entity with its control and video ops with CDF. > > I can give this a try.
I am currently in progress of reworking Exynos MIPI DSIM code and s6e8ax0 LCD driver to use the v2 RFC of Common Display Framework. I have most of the work done, I have just to solve several remaining problems. Best regards, -- Tomasz Figa Samsung Poland R&D Center SW Solution Development, Linux Platform
