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Date: Mon, 9 Dec 2019 11:08:35 +0000
From: Mihail Atanassov <Mihail.Atanassov@....com>
To: Neil Armstrong <narmstrong@...libre.com>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
CC: Martyn Welch <martyn.welch@...labora.co.uk>,
David Airlie <airlied@...ux.ie>,
Peter Senna Tschudin <peter.senna@...il.com>,
Russell King <linux@...linux.org.uk>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Boris Brezillon <boris.brezillon@...labora.com>,
Sam Ravnborg <sam@...nborg.org>,
Jerome Brunet <jbrunet@...libre.com>,
"linux-renesas-soc@...r.kernel.org"
<linux-renesas-soc@...r.kernel.org>,
"linux-samsung-soc@...r.kernel.org"
<linux-samsung-soc@...r.kernel.org>,
Vincent Abriou <vincent.abriou@...com>,
Martin Donnelly <martin.donnelly@...com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Vasily Khoruzhick <anarsoul@...il.com>,
Kukjin Kim <kgene@...nel.org>, Icenowy Zheng <icenowy@...c.io>,
Jonas Karlman <jonas@...boo.se>,
"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
Brian Masney <masneyb@...tation.org>,
"linux-mediatek@...ts.infradead.org"
<linux-mediatek@...ts.infradead.org>,
Matthias Brugger <matthias.bgg@...il.com>, nd <nd@....com>,
Sean Paul <sean@...rly.run>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
Jernej Skrabec <jernej.skrabec@...l.net>,
Wolfram Sang <wsa+renesas@...g-engineering.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Douglas Anderson <dianders@...omium.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Yannick Fertré <yannick.fertre@...com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Torsten Duwe <duwe@....de>,
Dariusz Marcinkiewicz <darekm@...gle.com>,
"freedreno@...ts.freedesktop.org" <freedreno@...ts.freedesktop.org>
Subject: Re: [PATCH v2 00/28] drm/bridge: Consolidate initialization
On Monday, 9 December 2019 10:39:07 GMT Neil Armstrong wrote:
> Hi Mihail,
Hi Neil,
>
> On 04/12/2019 12:48, Mihail Atanassov wrote:
> > Hi all,
> >
> > I've dropped the fun parts of this series since they need more work, but
> > figured drm_bridge_init() as a concept is still valuable on its own (and
> > I think I'll need it to roll out device links for registered bridges),
> > so here goes.
> >
> > v2:
> > - expanded commit messages and added some extra bridge-related
> > documentation (Daniel)
> > - dropped v1 patches 29 and 30: 29 needs more work, and 30 depends on
> > it
> > - added all remaining drm_bridge implementers, found by searching for
> > drm_bridge_funcs which is mandatory for any bridge; new uses in
> > patches 3, 27, and 28 (Sam)
> > - due to the above, I've decided to squash all analogix changes into
> > one patch
> >
> > ---
> > v1 [https://patchwork.freedesktop.org/series/70039/] cover text below:
> >
> > This series adds device links support to drm_bridge. The motivation
> > behind it is that a drm_bridge in a module could get removed under the
> > feet of the bridge user without warning, so we need a way to remove and
> > reprobe the client as needed to avoid peering into the void.
> >
> > 1: Add a drm_bridge_init() function which wraps all initialisation of
> > the structure prior to calling drm_bridge_add().
> >
> > 2-26,28: Apply the drm_bridge_init() refactor to every bridge that uses
> > drm_bridge_add().
> >
> > 27: Minor cleanup in rcar-du.
> >
> > 29: Add of_drm_find_bridge_devlink() which functions the same as
> > of_drm_find_bridge() plus adds a device device link from the owning
> > drm_device to the bridge device.
> >
> > 30: As a motivating example, convert komeda to exclusively use
> > drm_bridge for its pipe outputs; this isn't a regression in usability
> > any more since device links bring the same automatic remove/reprobe
> > feature as components.
> >
> > Mihail Atanassov (28):
> > drm: Introduce drm_bridge_init()
> > drm/bridge: adv7511: Use drm_bridge_init()
> > drm/bridge/analogix: Use drm_bridge_init()
> > drm/bridge: cdns: Use drm_bridge_init()
> > drm/bridge: dumb-vga-dac: Use drm_bridge_init()
> > drm/bridge: lvds-encoder: Use drm_bridge_init()
> > drm/bridge: megachips-stdpxxxx-ge-b850v3-fw: Use drm_bridge_init()
> > drm/bridge: nxp-ptn3460: Use drm_bridge_init()
> > drm/bridge: panel: Use drm_bridge_init()
> > drm/bridge: ps8622: Use drm_bridge_init()
> > drm/bridge: sii902x: Use drm_bridge_init()
> > gpu: drm: bridge: sii9234: Use drm_bridge_init()
> > drm/bridge: sil_sii8620: Use drm_bridge_init()
> > drm/bridge: dw-hdmi: Use drm_bridge_init()
> > drm/bridge/synopsys: dsi: Use drm_bridge_init()
> > drm/bridge: tc358764: Use drm_bridge_init()
> > drm/bridge: tc358767: Use drm_bridge_init()
> > drm/bridge: thc63: Use drm_bridge_init()
> > drm/bridge: ti-sn65dsi86: Use drm_bridge_init()
> > drm/bridge: ti-tfp410: Use drm_bridge_init()
> > drm/exynos: mic: Use drm_bridge_init()
> > drm/i2c: tda998x: Use drm_bridge_init()
> > drm/mcde: dsi: Use drm_bridge_init()
> > drm/mediatek: hdmi: Use drm_bridge_init()
> > drm: rcar-du: lvds: Use drm_bridge_init()
> > drm: rcar-du: lvds: Don't set drm_bridge private pointer
> > drm/sti: Use drm_bridge_init()
> > drm/msm: Use drm_bridge_init()
> >
> > drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 5 ++-
> > .../drm/bridge/analogix/analogix-anx6345.c | 5 ++-
> > .../drm/bridge/analogix/analogix-anx78xx.c | 8 ++---
> > .../drm/bridge/analogix/analogix_dp_core.c | 5 ++-
> > drivers/gpu/drm/bridge/cdns-dsi.c | 4 +--
> > drivers/gpu/drm/bridge/dumb-vga-dac.c | 6 ++--
> > drivers/gpu/drm/bridge/lvds-encoder.c | 7 ++--
> > .../bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 4 +--
> > drivers/gpu/drm/bridge/nxp-ptn3460.c | 4 +--
> > drivers/gpu/drm/bridge/panel.c | 7 ++--
> > drivers/gpu/drm/bridge/parade-ps8622.c | 3 +-
> > drivers/gpu/drm/bridge/sii902x.c | 5 ++-
> > drivers/gpu/drm/bridge/sii9234.c | 3 +-
> > drivers/gpu/drm/bridge/sil-sii8620.c | 3 +-
> > drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 7 ++--
> > drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 7 ++--
> > drivers/gpu/drm/bridge/tc358764.c | 4 +--
> > drivers/gpu/drm/bridge/tc358767.c | 3 +-
> > drivers/gpu/drm/bridge/thc63lvd1024.c | 7 ++--
> > drivers/gpu/drm/bridge/ti-sn65dsi86.c | 5 ++-
> > drivers/gpu/drm/bridge/ti-tfp410.c | 5 ++-
> > drivers/gpu/drm/drm_bridge.c | 34 ++++++++++++++++++-
> > drivers/gpu/drm/exynos/exynos_drm_mic.c | 8 +----
> > drivers/gpu/drm/i2c/tda998x_drv.c | 6 +---
> > drivers/gpu/drm/mcde/mcde_dsi.c | 3 +-
> > drivers/gpu/drm/mediatek/mtk_hdmi.c | 4 +--
> > drivers/gpu/drm/msm/dsi/dsi_manager.c | 4 +--
> > drivers/gpu/drm/msm/edp/edp_bridge.c | 3 +-
> > drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 4 +--
> > drivers/gpu/drm/rcar-du/rcar_lvds.c | 5 ++-
> > drivers/gpu/drm/sti/sti_dvo.c | 4 +--
> > drivers/gpu/drm/sti/sti_hda.c | 3 +-
> > drivers/gpu/drm/sti/sti_hdmi.c | 3 +-
> > include/drm/drm_bridge.h | 15 +++++++-
> > 34 files changed, 100 insertions(+), 103 deletions(-)
> >
>
> Can you check it doesn't collides with Boris 1-7 of "drm: Add support for bus-format negotiation" patches he just pushed on drm-misc-next ?
Thanks for the heads-up. There's no technical conflict but the build fails.
I'll fix it for v3 after I get the de-midlayering of drm_bridge done
(see https://patchwork.freedesktop.org/patch/343643/?series=70432&rev=1 for
context) and the s/bridge->dev/bridge->drm/ patch merged
(https://patchwork.freedesktop.org/patch/343824/).
>
> Neil
>
--
Mihail
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