From: Tudor Ambarus <tudor.ambarus@linaro.org>
To: Conor Dooley <conor.dooley@microchip.com>
Cc: Jassi Brar <jassisinghbrar@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, andre.draszik@linaro.org,
peter.griffin@linaro.org, kernel-team@android.com,
willmcvicker@google.com, daniel.lezcano@linaro.org,
vincent.guittot@linaro.org, ulf.hansson@linaro.org,
arnd@arndb.de
Subject: Re: [PATCH 1/2] dt-bindings: mailbox: add support for referencing controllers solely by node
Date: Thu, 19 Dec 2024 15:42:11 +0000 [thread overview]
Message-ID: <d9e635c8-de05-4812-bf2b-11651f6da5c1@linaro.org> (raw)
In-Reply-To: <20241219-recent-everyone-865b19864693@wendy>
Hi, Conor,
On 12/19/24 2:11 PM, Conor Dooley wrote:
>> There are mailbox clients that can discover the mailbox channel ID at
>> run-time. For such cases passing the channel identifier via DT is
>> redundant. Add support for referencing controllers solely by node.
> I don't really get your implementation, why not just allow #mbox-cells = 0?
> That's what's done for things like fixed frequency clocks that only have
> a single output.
Ah, indeed!
instead of:
of_parse_phandle(dev->of_node, "mbox", 0);
I can do a:
of_parse_phandle_with_args(dev->of_node, "mboxes",
"#mbox-cells", 0, &of_args)
where #mbox-cells = 0;
Or ... can I pass NULL for cells_name and make the #mbox-cells property
optional and still keeping its requirement of being at least 1?
Thanks!
ta
next prev parent reply other threads:[~2024-12-19 15:43 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-19 13:07 [PATCH 0/2] mailbox: add support for clients to request channels by arguments Tudor Ambarus
2024-12-19 13:07 ` [PATCH 1/2] dt-bindings: mailbox: add support for referencing controllers solely by node Tudor Ambarus
2024-12-19 14:11 ` Conor Dooley
2024-12-19 15:42 ` Tudor Ambarus [this message]
2024-12-19 18:58 ` Conor Dooley
2024-12-20 7:51 ` Tudor Ambarus
2024-12-20 19:41 ` Conor Dooley
2024-12-19 13:07 ` [PATCH 2/2] mailbox: add support for clients to request channels by arguments Tudor Ambarus
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=d9e635c8-de05-4812-bf2b-11651f6da5c1@linaro.org \
--to=tudor.ambarus@linaro.org \
--cc=andre.draszik@linaro.org \
--cc=arnd@arndb.de \
--cc=conor+dt@kernel.org \
--cc=conor.dooley@microchip.com \
--cc=daniel.lezcano@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=jassisinghbrar@gmail.com \
--cc=kernel-team@android.com \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=peter.griffin@linaro.org \
--cc=robh@kernel.org \
--cc=ulf.hansson@linaro.org \
--cc=vincent.guittot@linaro.org \
--cc=willmcvicker@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox