From: Daniel Vetter <daniel@ffwll.ch>
To: Boris Brezillon <boris.brezillon@collabora.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>,
Mark Rutland <mark.rutland@arm.com>,
Jernej Skrabec <jernej.skrabec@siol.net>,
Neil Armstrong <narmstrong@baylibre.com>,
Andrey Smirnov <andrew.smirnov@gmail.com>,
intel-gfx-trybot@lists.freedesktop.org,
Jonas Karlman <jonas@kwiboo.se>,
dri-devel@lists.freedesktop.org,
Andrzej Hajda <a.hajda@samsung.com>,
devicetree@vger.kernel.org,
Thierry Reding <thierry.reding@gmail.com>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Rob Herring <robh+dt@kernel.org>,
kernel@collabora.com, Sam Ravnborg <sam@ravnborg.org>,
Chris Healy <cphealy@gmail.com>
Subject: Re: [PATCH v10 00/12] drm: Add support for bus-format negotiation
Date: Fri, 31 Jan 2020 19:08:25 +0100 [thread overview]
Message-ID: <20200131180825.GO43062@phenom.ffwll.local> (raw)
In-Reply-To: <20200131164244.6955ec45@collabora.com>
On Fri, Jan 31, 2020 at 04:42:44PM +0100, Boris Brezillon wrote:
> On Tue, 28 Jan 2020 14:55:02 +0100
> Boris Brezillon <boris.brezillon@collabora.com> wrote:
>
> > Hello,
> >
> > This patch series aims at adding support for runtime bus-format
> > negotiation between all elements of the
> > 'encoder -> bridges -> connector/display' section of the pipeline.
> >
> > In order to support that, we need drm bridges to fully take part in the
> > atomic state validation process, which requires adding a
> > drm_bridge_state and a new drm_bridge_funcs.atomic_check() hook.
> > Once those basic building blocks are in place, we can add new hooks to
> > allow bus format negotiation (those are called just before
> > ->atomic_check()). The bus format selection is done at runtime by
> > testing all possible combinations across the whole bridge chain until
> > one is reported to work.
> >
> > No fundamental changes in this v10, just collected R-bs, addressed
> > Philipp's comments and moved the changelog back to the visible part
> > of the commit message.
> >
> > I plan to apply patches 1 to 7 soon, so if there's anything you don't
> > like in there, please say it now. Still waiting for review on the LVDS
> > bridge and panel stuff.
> >
> > This patch series is also available here [1].
> >
> > Thanks,
> >
> > Boris
> >
> > [1]https://github.com/bbrezillon/linux-0day/commits/drm-bridge-busfmt-v10
> >
> > Boris Brezillon (12):
> > drm/bridge: Add a drm_bridge_state object
> > drm/rcar-du: Plug atomic state hooks to the default implementation
> > drm/bridge: analogix: Plug atomic state hooks to the default
> > implementation
> > drm/bridge: Patch atomic hooks to take a drm_bridge_state
> > drm/bridge: Add an ->atomic_check() hook
> > drm/bridge: Add the necessary bits to support bus format negotiation
> > drm/imx: pd: Use bus format/flags provided by the bridge when
> > available
>
> Patches 1 to 7 applied.
>
> > drm/bridge: lvds-codec: Implement basic bus format negotiation
> > dt-bindings: display: bridge: lvds-codec: Add new bus-width prop
> > drm/bridge: panel: Propage bus format/flags
>
> Laurent, when you find some time, could you have a look at patches 8-10?
>
> > drm/panel: simple: Fix the lt089ac29000 bus_format
>
> Sam, I'll let you apply that one since dim complained that it was
> missing a R-b (you only gave your A-b).
A-b should be enough ... some typo in the A-b tag maybe?
-Daniel
>
> > ARM: dts: imx: imx51-zii-rdu1: Fix the display pipeline definition
> >
> > .../bindings/display/bridge/lvds-codec.yaml | 8 +
> > arch/arm/boot/dts/imx51-zii-rdu1.dts | 24 +-
> > .../drm/bridge/analogix/analogix_dp_core.c | 44 +-
> > drivers/gpu/drm/bridge/lvds-codec.c | 64 ++-
> > drivers/gpu/drm/bridge/panel.c | 4 +
> > drivers/gpu/drm/drm_atomic.c | 116 +++++
> > drivers/gpu/drm/drm_atomic_helper.c | 73 ++-
> > drivers/gpu/drm/drm_atomic_state_helper.c | 103 +++++
> > drivers/gpu/drm/drm_bridge.c | 437 +++++++++++++++++-
> > drivers/gpu/drm/imx/parallel-display.c | 177 ++++++-
> > drivers/gpu/drm/panel/panel-simple.c | 2 +-
> > drivers/gpu/drm/rcar-du/rcar_lvds.c | 11 +-
> > include/drm/drm_atomic.h | 76 +++
> > include/drm/drm_atomic_helper.h | 8 +
> > include/drm/drm_atomic_state_helper.h | 13 +
> > include/drm/drm_bridge.h | 179 ++++++-
> > 16 files changed, 1258 insertions(+), 81 deletions(-)
> >
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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prev parent reply other threads:[~2020-01-31 18:08 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 13:55 [PATCH v10 00/12] drm: Add support for bus-format negotiation Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 01/12] drm/bridge: Add a drm_bridge_state object Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 02/12] drm/rcar-du: Plug atomic state hooks to the default implementation Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 03/12] drm/bridge: analogix: " Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 04/12] drm/bridge: Patch atomic hooks to take a drm_bridge_state Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 05/12] drm/bridge: Add an ->atomic_check() hook Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 06/12] drm/bridge: Add the necessary bits to support bus format negotiation Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 07/12] drm/imx: pd: Use bus format/flags provided by the bridge when available Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 08/12] drm/bridge: lvds-codec: Implement basic bus format negotiation Boris Brezillon
2020-02-24 23:03 ` Laurent Pinchart
2020-02-25 6:15 ` Sam Ravnborg
2020-02-25 8:44 ` Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 09/12] dt-bindings: display: bridge: lvds-codec: Add new bus-width prop Boris Brezillon
2020-01-31 17:12 ` Sam Ravnborg
2020-01-31 17:23 ` Boris Brezillon
2020-02-24 22:31 ` Laurent Pinchart
2020-02-25 9:13 ` Boris Brezillon
2020-03-09 10:35 ` Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 10/12] drm/bridge: panel: Propage bus format/flags Boris Brezillon
2020-01-31 17:25 ` Boris Brezillon
2020-02-24 22:34 ` Laurent Pinchart
2020-02-25 8:45 ` Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 11/12] drm/panel: simple: Fix the lt089ac29000 bus_format Boris Brezillon
2020-01-28 13:55 ` [PATCH v10 12/12] ARM: dts: imx: imx51-zii-rdu1: Fix the display pipeline definition Boris Brezillon
2020-01-31 15:42 ` [PATCH v10 00/12] drm: Add support for bus-format negotiation Boris Brezillon
2020-01-31 16:51 ` Sam Ravnborg
2020-01-31 18:08 ` Daniel Vetter [this message]
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