Sakari/Laurent, Did you get some time to review the code? Will look forward for your comments. -Manju
On Wed, Jul 06, 2011 at 11:10:38, Hadli, Manjunath wrote: > > Hi Sakari, > > On Mon, Jul 04, 2011 at 21:43:09, Sakari Ailus wrote: > > Hadli, Manjunath wrote: > > > Thank you Laurent. > > > > Hi Manjunath, > > > > > On Mon, Jul 04, 2011 at 18:52:37, Laurent Pinchart wrote: > > >> Hi Manjunath, > > >> > > >> On Monday 04 July 2011 07:58:06 Hadli, Manjunath wrote: > > >>> On Thu, Jun 30, 2011 at 19:27:36, Sakari Ailus wrote: > > >> > > >> [snip] > > >> > > >>>> I understand that not all the blocks are there. Are there any > > >>>> major functional differences between those in Davinci and those > > >>>> in OMAP 3? Could the OMAP 3 ISP driver made support Davinci ISP as > > >>>> well? > > >>> > > >>> Yes, there are a lot of major differences between OMAP3 and > > >>> Dm365/Dm355, both in terms of features, there IP, and the software > > >>> interface, including all the registers which are entirely different. > > >>> The closest omap3 would come to is only to DM6446. I do not think > > >>> OMAP3 driver can be made to support Dm355 and Dm365. It is good to > > >>> keep the OMAP3 neat and clean to cater for OMAP4 and beyond, and > > >>> keep the Davinci family separate. The names might look similar and > > >>> hence confusing for you, but the names can as well be made the > > >>> same as Dm365 blocks like ISIF and IPIPE and IPIPEIF which are > > >>> different. > > >> > > >> The DM6446 ISP is very similar to the OMAP3 ISP, and thus quite > > >> different from the DM355/365 ISPs. Should the DM6446 be supported > > >> by the OMAP3 ISP driver, and the DM355/365 by this driver ? > > > > > > DM6446 capture IP is in some respects similar to OMAP3 for some > > > features, but there are a large number of differences also (MMU, > > > VRFB, a lot of display interfaces etc). Having a single driver > > > catering to Since DM6446 and OMAP3 is going to be unwieldy. Also, > > > DM6446 belongs to the Davinci family of chips, it should be clubbed > > > with the other Davinci SoCs as it will simplify a lot of other > > > things including directory subdirectory/file naming, organization of > > > machine/platform code etc among other things. Other than Video a lot > > > of other system registers and features which are common with the > > > rest of Davinci SoCs which if treated together is a good thing, > > > whereas > > > OMAP3 can be modified and developed with those on the OMAP family > > > (OMAP4 for ex). > > > > Thanks for the clarifications. > > > > What about the DM3730? As far as I understand, the ISP on that one is > > supported by the OMAP 3 ISP driver. But it looks like that it's more > > continuation for the OMAP family of the chips than the Davinci. > Let me say that for all practical purposes, for developers, DM3730 is OMAP3. > So a distinction between OMAP3 and DM3730 need not be made at all. As to why > it is a Davinci device, has more to do with things outside the realm of > development. So Dm3730 for us, including you and me, can be OMAP3, As the TRM > says - " It is OMAP3 compatible". > > > > > I glanced at the DM6446 documentation and at the register level the > > interface looks somewhat different although some register names are the > > same. I didn't found a proper TRM which would be as detailed as the OMAP > > ones --- does TI have one available in public? > TRMs for Davinci devices are slightly in a different format - split into > multiple documents for each peripheral and system functionalities unlike a > big singe doc for OMAP. > But all the required documents are in public domain and can be found at : > http://focus.ti.com/docs/prod/folders/print/tms320dm6446.html under the user > guides category. If you are looking for some particular information, let me > know and I can help you locate it. > > > > > > > OMAP 4 has a quite different ISS --- which the ISP is a part of, and which > > also is very different to the OMAP 3 one --- so it's unlikely that the > > same driver would support OMAP 3 and OMAP 4 ISPs. > > > > Kind regards, > > > > -- > > Sakari Ailus > > sakari.ai...@iki.fi > > > > Regards, > -Manjunath > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
