[PATCH v3 0/7] drm: exynos: dsi: Convert drm bridge

[Jagan Teki]

Hi Marek,

On Mon, Dec 13, 2021 at 5:42 PM Marek Szyprowski
<m.szyprowski at samsung.com> wrote:
>
> Hi Jagan,
>
> On 13.12.2021 13:08, Jagan Teki wrote:
> > On Mon, Dec 13, 2021 at 5:34 PM Marek Szyprowski
> > <m.szyprowski at samsung.com> wrote:
> >> On 12.12.2021 19:14, Jagan Teki wrote:
> >>> Updated series about drm bridge conversion of exynos dsi.
> >>>
> >>> Patch 1: panel checker
> >>>
> >>> Patch 2: panel_bridge API
> >>>
> >>> Patch 3: Bridge conversion
> >>>
> >>> Patch 4: pree_enable, post_disable
> >>>
> >>> Patch 5: Atomic functions
> >>>
> >>> Patch 6: atomic_set
> >>>
> >>> Patch 7: DSI init in enable
> >>>
> >>> [1] https://patchwork.kernel.org/project/dri-devel/cover/20211210191922.2367979-1-jagan@amarulasolutions.com/
> >>>
> >>> Any inputs?
> >> I've checked this patchset on Exynos based Trats2 board (the one with
> >> simplest display pipeline: Exynos FIMD -> Exynos DSI -> s6e8aa0 DSI
> >> panel). DRM stops working after the 2nd patch ("[PATCH v3 2/7] drm:
> >> exynos: dsi: Use drm panel_bridge API"):
> >>
> >> # dmesg | grep drm
> >> [    2.511893] [drm] Exynos DRM: using 11c00000.fimd device for DMA
> >> mapping operations
> >> [    2.518653] exynos-drm exynos-drm: bound 11c00000.fimd (ops
> >> fimd_component_ops)
> >> [    2.535699] exynos-drm exynos-drm: bound 11c80000.dsi (ops
> >> exynos_dsi_component_ops)
> >> [    2.543912] exynos-drm exynos-drm: [drm] Cannot find any crtc or sizes
> >> [    2.556107] [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on
> >> minor 0
> >> [    2.573212] exynos-dsi 11c80000.dsi: [drm:exynos_dsi_host_attach]
> >> *ERROR* failed to find the bridge: -19
> > Look like you have missed to apply the Child lookup patch. is it so?
> >
> > Let me send it, I will CC you as well. And I will also send tc358764
> > panel_bridge conversion.
>
> The above log is from Trats2 board, which uses only the s6e8aa0 DSI
> panel. I've also checked the Arndale board, which has tc358764 bridge
> and it also doesn't work. Which patches I have to apply for the tests?

[PATCH v2] drm: of: Lookup if child node has panel or bridge
[PATCH] drm: bridge: tc358764: Use drm panel_bridge API

Thanks,
Jagan.