On 25/06/2021 12:08, Jagan Teki wrote: > Hi Krzysztof, > > On Fri, Jun 25, 2021 at 2:51 PM Krzysztof Kozlowski > <krzysztof.kozlowski@xxxxxxxxxxxxx> wrote: >> >> On Thu, 24 Jun 2021 at 14:19, Laurent Pinchart >> <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: >>> >>> Hi Jagan, >>> >>> On Thu, Jun 24, 2021 at 05:42:43PM +0530, Jagan Teki wrote: >>>> On Thu, Jun 24, 2021 at 8:18 AM Fabio Estevam wrote: >>>>> On Wed, Jun 23, 2021 at 7:23 PM Laurent Pinchart wrote: >>>>> >>>>>> Looking at the register set, it seems to match the Exynos 5433, >>>>>> supported by drivers/gpu/drm/exynos/exynos_drm_dsi.c. Can we leverage >>>>>> that driver instead of adding a new one for the same IP core ? >>>>> >>>>> Yes. there was an attempt from Michael in this direction: >>>>> https://patchwork.kernel.org/project/dri-devel/cover/20200911135413.3654800-1-m.tretter@xxxxxxxxxxxxxx/ >>>> >>>> Thanks for the reference, I will check it out and see I can send any >>>> updated versions wrt my i.MX8MM platform. >>> >>> Thanks. >>> >>> I had a brief look at the exynos driver, and I think it should be turned >>> into a DRM bridge as part of this rework to be used with the i.MX8MM. >>> >>> Is there someone from Samsung who could assist, at least to test the >>> changes ? >> >> Yes, I mentioned few guys in reply to PHY. Around the DRM drivers you >> can get in touch with: >> Inki Dae <inki.dae@xxxxxxxxxxx> >> Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx> >> Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> >> Andrzej Hajda <a.hajda@xxxxxxxxxxx> > > Thanks for the information. > >> >> The easiest testing of the display stack would be on Hardkernel's Odroid >> XU4 (https://www.hardkernel.com/shop/odroid-xu4-special-price/) however >> you will not test the DSI/DSIM directly (it has only HDMI port). > > Look like I found one board with Exynos5430 with DSI. Does this SoC is > same as mainline Exynos5433? No, Exynos5430 is ARMv7. Looks like improvement over Exynos5422. Exynos5422 has a very good support in mainline while Exynso5430 was never touched at all. Exynos5433 is ARMv8, although many things are shared with 5422. About DSI I have no clue. Best regards, Krzysztof
