linux-kernel - Re: [PATCH V8 00/12] soc: imx8mp: Add support for HDMI

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Message-ID: <ZgJ9P3Wx2A2n9Gt+@tom-HP-ZBook-Fury-15-G7-Mobile-Workstation>
Date: Tue, 26 Mar 2024 08:46:07 +0100
From: Tommaso Merciai <tomm.merciai@...il.com>
To: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: Adam Ford <aford173@...il.com>, linux-arm-kernel@...ts.infradead.org,
	marex@...x.de, alexander.stein@...tq-group.com,
	frieder.schrempf@...tron.de,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>, Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Vinod Koul <vkoul@...nel.org>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Liu Ying <victor.liu@....com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Lucas Stach <l.stach@...gutronix.de>,
	dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH V8 00/12] soc: imx8mp: Add support for HDMI

Hi Laurent,

On Tue, Mar 26, 2024 at 12:03:38AM +0200, Laurent Pinchart wrote:
> Hi Tommaso,
> 
> On Mon, Mar 25, 2024 at 10:48:56PM +0100, Tommaso Merciai wrote:
> > Hi Adam, Lucas,
> > Thanks for this series.
> > 
> > This series make HDMI work on evk.
> > All is working properly on my side.
> > 
> > Tested on: Linux imx8mp-lpddr4-evk 6.9.0-rc1.
> > Hope this help.
> > 
> > Tested-by: Tommaso Merciai <tomm.merciai@...il.com>
> 
> The DRM side has been merged already. The only missing patches are for
> the PHY, and the latest version can be found in
> https://lore.kernel.org/linux-phy/20240227220444.77566-1-aford173@gmail.com/.
> You can test that series and send a Tested-by tag. I'm crossing my
> fingers and hoping it will be merged in v6.10.
(same here :) )

Thanks for sharing! :)

To be honest I test all this series rebasing my alvium next branch on top of media_stage/master (6.9.0-rc1)
All is working properly on my side.
I found v8 into the commit msg here: https://patches.linaro.org/project/linux-pm/patch/20240203165307.7806-9-aford173@gmail.com/
then I'm thinking this is the latest.

I'm going to switch to your suggestion that looks more recent :)

Thanks again,
Tommaso

> 
> > On Sat, Feb 03, 2024 at 10:52:40AM -0600, Adam Ford wrote:
> > > The i.MX8M Plus has an HDMI controller, but it depends on two
> > > other systems, the Parallel Video Interface (PVI) and the
> > > HDMI PHY from Samsung. The LCDIF controller generates the display
> > > and routes it to the PVI which converts passes the parallel video
> > > to the HDMI bridge.  The HDMI system has a corresponding power
> > > domain controller whose driver was partially written, but the
> > > device tree for it was never applied, so some changes to the
> > > power domain should be harmless because they've not really been
> > > used yet.
> > > 
> > > This series is adapted from multiple series from Lucas Stach with
> > > edits and suggestions from feedback from various series, but it
> > > since it's difficult to use and test them independently,
> > > I merged them into on unified series.  The version history is a
> > > bit ambiguous since different components were submitted at different
> > > times and had different amount of retries.  In an effort to merge them
> > > I used the highest version attempt.
> > > 
> > > Adam Ford (3):
> > >   dt-bindings: soc: imx: add missing clock and power-domains to
> > >     imx8mp-hdmi-blk-ctrl
> > >   pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix
> > >     domain
> > >   arm64: defconfig: Enable DRM_IMX8MP_DW_HDMI_BRIDGE as module
> > > 
> > > Lucas Stach (9):
> > >   dt-bindings: phy: add binding for the i.MX8MP HDMI PHY
> > >   phy: freescale: add Samsung HDMI PHY
> > >   arm64: dts: imx8mp: add HDMI power-domains
> > >   arm64: dts: imx8mp: add HDMI irqsteer
> > >   dt-bindings: display: imx: add binding for i.MX8MP HDMI PVI
> > >   drm/bridge: imx: add driver for HDMI TX Parallel Video Interface
> > >   dt-bindings: display: imx: add binding for i.MX8MP HDMI TX
> > >   drm/bridge: imx: add bridge wrapper driver for i.MX8MP DWC HDMI
> > >   arm64: dts: imx8mp: add HDMI display pipeline
> > > 
> > >  .../display/bridge/fsl,imx8mp-hdmi-tx.yaml    |  102 ++
> > >  .../display/imx/fsl,imx8mp-hdmi-pvi.yaml      |   84 ++
> > >  .../bindings/phy/fsl,imx8mp-hdmi-phy.yaml     |   62 +
> > >  .../soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml     |   22 +-
> > >  arch/arm64/boot/dts/freescale/imx8mp.dtsi     |  145 +++
> > >  arch/arm64/configs/defconfig                  |    1 +
> > >  drivers/gpu/drm/bridge/imx/Kconfig            |   18 +
> > >  drivers/gpu/drm/bridge/imx/Makefile           |    2 +
> > >  drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pvi.c  |  207 ++++
> > >  drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c   |  154 +++
> > >  drivers/phy/freescale/Kconfig                 |    6 +
> > >  drivers/phy/freescale/Makefile                |    1 +
> > >  drivers/phy/freescale/phy-fsl-samsung-hdmi.c  | 1075 +++++++++++++++++
> > >  drivers/pmdomain/imx/imx8mp-blk-ctrl.c        |   10 +-
> > >  14 files changed, 1876 insertions(+), 13 deletions(-)
> > >  create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
> > >  create mode 100644 Documentation/devicetree/bindings/display/imx/fsl,imx8mp-hdmi-pvi.yaml
> > >  create mode 100644 Documentation/devicetree/bindings/phy/fsl,imx8mp-hdmi-phy.yaml
> > >  create mode 100644 drivers/gpu/drm/bridge/imx/imx8mp-hdmi-pvi.c
> > >  create mode 100644 drivers/gpu/drm/bridge/imx/imx8mp-hdmi-tx.c
> > >  create mode 100644 drivers/phy/freescale/phy-fsl-samsung-hdmi.c
> 
> -- 
> Regards,
> 
> Laurent Pinchart