Hi Sylwester, On Wed, Sep 18, 2013 at 2:20 AM, Sylwester Nawrocki <sylvester.nawrocki@xxxxxxxxx> wrote: > Hi Arun, > > > On 09/17/2013 01:29 PM, Arun Kumar K wrote: >> >> Wont this make fimc-is to be enabled to use fimc-lite? > > > Hmm, it would be runtime PM active, yes. But it doesn't mean the > Cortex-A5's firmware would need to be running. > > >> As such there is no dependency like that in hardware and we can >> use fimc-lite alone in DMA out mode without fimc-is. > > > If you are sure about it, then fimc-lite nodes could stay at root level. > Still, it would be more appropriate IMO to have the FIMC-IS sub-/peripheral > devices, like I2C or SPI bus controllers, instantiated by the FIMC-IS > driver. > Yes I2C and SPI bus controllers are part of FIMC-IS and it can be instantiated within the FIMC-IS driver. > And what about "glue logic" linking FIMC-LITEs with the rest of the > imaging subsystem ? Are you sure the is no some weird inter-dependencies ? > Note that there is no board files any more, where we could hack some > details. > There is no dependency like that which I am aware of and we have tested here mipi & fimc-lite without fimc-is and it worked well. > >> If its modified as per your suggestion, how will the scenario of >> sensor -> mipi-csis -> fimc-lite -> memory look like without fimc-is? > > > The exynos5-fimc-is module would need to be loaded for that. If you're > sure the hardware can work independently, we could leave out the fimc-lite > nodes at root level. > Yes sensor-> mipi -> fimc-lite -> memory without fimc-is is very well possible in Exynos5 and its tested. So I will make the remaining changes you suggested and send new patchset. Regards Arun -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
