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. 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? 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.ailus@xxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
