Hi Jagan,
On 15.12.2021 13:57, Jagan Teki wrote:
On Wed, Dec 15, 2021 at 5:31 PM Marek Szyprowski m.szyprowski@samsung.com wrote:
On 15.12.2021 11:15, Jagan Teki wrote:
Updated series about drm bridge conversion of exynos dsi. Previous version can be accessible, here [1].
Patch 1: connector reset
Patch 2: panel_bridge API
Patch 3: Bridge conversion
Patch 4: Atomic functions
Patch 5: atomic_set
Patch 6: DSI init in enable
There is a little progress! :)
Devices with a simple display pipeline (only a DSI panel, like Trats/Trats2) works till the last patch. Then, after applying ("[PATCH v4 6/6] drm: exynos: dsi: Move DSI init in bridge enable"), I get no display at all.
A TM2e board with in-bridge (Exynos MIC) stops displaying anything after applying patch "[PATCH v4 2/6] drm: exynos: dsi: Use drm panel_bridge API".
In case of the Arndale board with tc358764 bridge, no much progress. The display is broken just after applying the "[PATCH v2] drm: bridge: tc358764: Use drm panel_bridge API" patch on top of linux-next.
In all cases the I had "drm: of: Lookup if child node has panel or bridge" patch applied.
Just skip the 6/6 for now.
Apply
- https://protect2.fireeye.com/v1/url?k=a24f3f76-fdd40659-a24eb439-0cc47a31cdf...
- https://protect2.fireeye.com/v1/url?k=a226360f-fdbd0f20-a227bd40-0cc47a31cdf...
Then apply 1/6 to 5/6. and update the status?
Okay, my fault, I didn't check that case on Arndale.
I've checked and indeed, Trats/Trats2 and Arndale works after the above 2 patches AND patches 1-5.
The only problem is now on TM2e, which uses Exynos MIC as in-bridge for Exynos DSI:
[ 4.068866] [drm] Exynos DRM: using 13800000.decon device for DMA mapping operations [ 4.069183] exynos-drm exynos-drm: bound 13800000.decon (ops decon_component_ops) [ 4.128983] exynos-drm exynos-drm: bound 13880000.decon (ops decon_component_ops) [ 4.129261] exynos-drm exynos-drm: bound 13930000.mic (ops exynos_mic_component_ops) [ 4.133508] exynos-dsi 13900000.dsi: [drm:exynos_dsi_host_attach] *ERROR* failed to find the bridge: -19 [ 4.136392] exynos-drm exynos-drm: bound 13900000.dsi (ops exynos_dsi_component_ops) [ 4.145499] rc_core: Couldn't load IR keymap rc-cec [ 4.145666] Registered IR keymap rc-empty [ 4.148402] rc rc0: sii8620 as /devices/virtual/rc/rc0 [ 4.156051] input: sii8620 as /devices/virtual/rc/rc0/input1 [ 4.160647] exynos-drm exynos-drm: bound 13970000.hdmi (ops hdmi_component_ops) [ 4.169923] exynos-drm exynos-drm: [drm] Cannot find any crtc or sizes [ 4.173958] exynos-drm exynos-drm: [drm] Cannot find any crtc or sizes [ 4.182304] [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 0
The display pipeline for TM2e is:
Exynos5433 Decon -> Exynos MIC -> Exynos DSI -> s6e3ha2 DSI panel
Best regards