Re: [PATCH 0/5] drm/exynos: Convert fbdev to DRM client

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On 30.03.2023 09:36, Thomas Zimmermann wrote:
> Convert exynos' fbdev code to struct drm_client. Replaces the current
> ad-hoc integration. The conversion includes a number of cleanups. As
> with most other drivers' fbdev emulation, fbdev in exynos is now just
> another DRM client that runs after the DRM device has been registered.
>
> Once all drivers' fbdev emulation has been converted to struct drm_client,
> we can attempt to add additional in-kernel clients. A DRM-based dmesg
> log or a bootsplash are commonly mentioned. DRM can then switch easily
> among the existing clients if/when required.
>
> I did the conversion from similar experience with other drivers. But I
> don't have the hardware to test this. Any testing is welcome.

Seems to be working fine. Tested with default framebuffer based console 
and simple tool that writes RGB data to /dev/fb0.

Tested-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>


> Thomas Zimmermann (5):
>    drm/exynos: Remove exynos_gem from struct exynos_drm_fbdev
>    drm/exynos: Remove struct exynos_drm_fbdev
>    drm/exynos: Remove fb_helper from struct exynos_drm_private
>    drm/exynos: Initialize fbdev DRM client
>    drm/exynos: Implement fbdev emulation as in-kernel client
>
>   drivers/gpu/drm/exynos/exynos_drm_drv.c   |  13 +-
>   drivers/gpu/drm/exynos/exynos_drm_drv.h   |   2 -
>   drivers/gpu/drm/exynos/exynos_drm_fb.c    |   2 -
>   drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 174 +++++++++++-----------
>   drivers/gpu/drm/exynos/exynos_drm_fbdev.h |  20 +--
>   5 files changed, 94 insertions(+), 117 deletions(-)
>
Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland




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