[PATCH v8 4/5] drm/tidss: New driver for TI Keystone platform Display SubSystem

[Tomi Valkeinen]

On 20/01/2020 23:02, Jyri Sarha wrote:
> This patch adds a new DRM driver for Texas Instruments DSS IPs used on
> Texas Instruments Keystone K2G, AM65x, and J721e SoCs. The new DSS IP is
> a major change to the older DSS IP versions, which are supported by
> the omapdrm driver. While on higher level the Keystone DSS resembles
> the older DSS versions, the registers are completely different and the
> internal pipelines differ a lot.
> 
> DSS IP found on K2G is an "ultra-light" version, and has only a single
> plane and a single output. The K3 DSS IPs are found on AM65x and J721E
> SoCs. AM65x DSS has two video ports, one full video plane, and another
> "lite" plane without scaling support. J721E has 4 video ports, 2 video
> planes and 2 lite planes. AM65x DSS has also an integrated OLDI (LVDS)
> output.
> 
> Version history:
> 
> v2: - rebased on top of drm-next-2019-11-27
>      - sort all include lines in all files
>      - remove all include <drm/drmP.h>
>      - remove select "select VIDEOMODE_HELPERS"
>      - call dispc_vp_setup() later in tidss_crtc_atomic_flush() (there is no
>        to call it in new modeset case as it is also called in vp_enable())
>      - change probe sequence and drm_device allocation (follow example in
>        drm_drv.c)
>      - use __maybe_unused instead of #ifdef for pm functions
>      - remove "struct drm_fbdev_cma *fbdev;" from driver data
>      - check panel connector type before connecting it
> 
> v3: no change
> 
> v4: no change
> 
> v5: - remove fifo underflow irq handling, it is not an error and
>        it should be used for debug purposes only
>      - memory tuning, prefetch plane fifo up to high-threshold value to
>        minimize possibility of underflows.
> 
> v6: - Check CTM and gamma support from dispc_features when creating crtc
>      - Implement CTM support for k2g and fix k3 CTM implementation
>      - Remove gamma property persistence and always write color properties
>        in a new modeset
> 
> v7: - Fix checkpatch.pl --strict issues
>      - Rebase on top of drm-misc-next-2020-01-10
> 
> v8: - Remove idle debug prints from dispc_init()
>      - Add Reviewed-by: Benoit Parrot <bparrot at ti.com>
> 
> Co-developed-by: Tomi Valkeinen <tomi.valkeinen at ti.com>
> Signed-off-by: Jyri Sarha <jsarha at ti.com>
> Acked-by: Sam Ravnborg <sam at ravnborg.org>
> Reviewed-by: Benoit Parrot <bparrot at ti.com>

You can add my SoB too:

Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.com>

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