linux-kernel - Re: [PATCH v3 1/3] dt-bindings: mailbox: Add mediatek,gce-props.yaml

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Date: Tue, 23 Jan 2024 09:21:10 +0000
From: Jason-JH Lin (林睿祥) <Jason-JH.Lin@...iatek.com>
To: "fshao@...omium.org" <fshao@...omium.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	Singo Chang (張興國) <Singo.Chang@...iatek.com>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>,
	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
	Jason-ch Chen (陳建豪)
	<Jason-ch.Chen@...iatek.com>, Shawn Sung (宋孝謙)
	<Shawn.Sung@...iatek.com>, Nancy Lin (林欣螢)
	<Nancy.Lin@...iatek.com>, Johnson Wang (王聖鑫)
	<Johnson.Wang@...iatek.com>, "conor+dt@...nel.org" <conor+dt@...nel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Project_Global_Chrome_Upstream_Group
	<Project_Global_Chrome_Upstream_Group@...iatek.com>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "krzysztof.kozlowski+dt@...aro.org"
	<krzysztof.kozlowski+dt@...aro.org>, "matthias.bgg@...il.com"
	<matthias.bgg@...il.com>, "angelogioacchino.delregno@...labora.com"
	<angelogioacchino.delregno@...labora.com>
Subject: Re: [PATCH v3 1/3] dt-bindings: mailbox: Add mediatek,gce-props.yaml

Hi Fei,

Thanks for the corrections.

On Mon, 2024-01-22 at 11:44 +0800, Fei Shao wrote:
>  	 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
>  On Fri, Jan 19, 2024 at 2:32 PM Jason-JH.Lin <
> jason-jh.lin@...iatek.com> wrote:
> Hi Jason,
> 
> Just few nitpicks about typo:
> >
> > Add mediatek,gce-props.yaml for common GCE properties that is used
> for
> > both mailbox providers and consumers. We place the common property
> > "mediatek,gce-events" in this binding currently.
> >
> > The property "mediatek,gce-events" is used for GCE event ID
> corresponding
> > to a hardware event signal sent by the hardware or a sofware
> driver.
> software
> 
> > If the mailbox providers or consumers want to manipulate the value
> of
> > the event ID, they need to know the specific event ID.
> >
> > Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> > ---
> >  .../bindings/mailbox/mediatek,gce-props.yaml  | 52
> +++++++++++++++++++
> >  1 file changed, 52 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/mailbox/mediatek,gce-props.yaml
> >
> > diff --git
> a/Documentation/devicetree/bindings/mailbox/mediatek,gce-props.yaml
> b/Documentation/devicetree/bindings/mailbox/mediatek,gce-props.yaml
> > new file mode 100644
> > index 000000000000..68b519ff089f
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-
> props.yaml
> > @@ -0,0 +1,52 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: 
> http://devicetree.org/schemas/mailbox/mediatek,gce-props.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: MediaTek Global Command Engine Common Propertes
> Properties
> 
> > +
> > +maintainers:
> > +  - Houlong Wei <houlong.wei@...iatek.com>
> > +
> > +description:
> > +  The Global Command Engine (GCE) is an instruction based, multi-
> threaded,
> > +  single-core command dispatcher for MediaTek hardware. The
> Command Queue
> > +  (CMDQ) mailbox driver is a driver for GCE, implemented using the
> Linux
> > +  mailbox framework. It is used to receive messages from mailbox
> consumers
> > +  and configure GCE to execute the specified instruction set in
> the message.
> > +  We use mediatek,gce-mailbox.yaml to define the properties for
> CMDQ mailbox
> > +  driver. A device driver that uses the CMDQ driver to configure
> its hardware
> > +  registers is a mailbox consumer. The mailbox consumer can
> request a mailbox
> > +  channel corresponding to a GCE hardware thread to send a
> message, specifying
> > +  that the GCE thread to configure its hardware. The mailbox
> provider can also
> > +  reserved a mailbox channel to configure GCE hardware register by
> the spcific
> s/reserved/reserve/
> s/spcific/specific/
> 
> Regards,
> Fei
> 
I'll fix these typo in the next version.

Regards,
Jason-JH.Lin