From: "Paweł Anikiel" <pan@semihalf.com>
To: jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com,
mika.westerberg@linux.intel.com, robh+dt@kernel.org,
p.zabel@pengutronix.de, arnd@arndb.de, olof@lixom.net,
soc@kernel.org, dinguyen@kernel.org, p.yadav@ti.com,
Tudor.Ambarus@microchip.com
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
alexandre.belloni@bootlin.com, sre@kernel.org,
thunder.leizhen@huawei.com, Jonathan.Cameron@huawei.com,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
ka@semihalf.com, tn@semihalf.com, jam@semihalf.com,
amstan@google.com, "Paweł Anikiel" <pan@semihalf.com>
Subject: [PATCH v2 2/4] dt-bindings: add bus number property
Date: Tue, 5 Oct 2021 16:37:46 +0200 [thread overview]
Message-ID: <20211005143748.2471647-3-pan@semihalf.com> (raw)
In-Reply-To: <20211005143748.2471647-1-pan@semihalf.com>
On SoCFPGA systems, it's desireable to have fixed numbering for
i2c busses, while being able to enable/disable them (e.g. have i2c1
be mapped to /dev/i2c-1, even though i2c0 is disabled). This can also
be achieved using devicetree aliases (see i2c_add_adapter). However,
having the driver be self-contained without relying on aliases is more
robust.
Signed-off-by: Paweł Anikiel <pan@semihalf.com>
---
.../devicetree/bindings/i2c/snps,designware-i2c.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
index d9293c57f573..1e02ddcbd690 100644
--- a/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/snps,designware-i2c.yaml
@@ -93,6 +93,11 @@ properties:
- const: tx
- const: rx
+ busno:
+ description: |
+ The property should contain the desired bus number (as opposed to
+ being assigned automatically)
+
unevaluatedProperties: false
required:
--
2.25.1
next prev parent reply other threads:[~2021-10-05 14:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-05 14:37 [PATCH v2 0/4] Add support for the Mercury+ AA1 module Paweł Anikiel
2021-10-05 14:37 ` [PATCH v2 1/4] i2c: check bus number property in DesignWare I2C Controller Paweł Anikiel
2021-10-05 16:19 ` Andy Shevchenko
2021-10-05 14:37 ` Paweł Anikiel [this message]
2021-10-05 16:22 ` [PATCH v2 2/4] dt-bindings: add bus number property Arnd Bergmann
2021-10-05 16:28 ` Alexandre Belloni
2021-10-06 9:29 ` Paweł Anikiel
[not found] ` <CAF9_jYT6mbk6dr8=ZYZ8B=gxnuHas7QBfDfuoTJnMzSKZt=WGw@mail.gmail.com>
2021-10-06 9:41 ` Arnd Bergmann
2021-10-05 14:37 ` [PATCH v2 3/4] reset: socfpga: add empty driver allowing consumers to probe Paweł Anikiel
2021-10-05 14:37 ` [PATCH v2 4/4] dts: socfpga: Add Mercury+ AA1 devicetree Paweł Anikiel
[not found] ` <20211005143746.xE5rCkt-P_XlNkn9bJ8ZqYPY4nQQ7doqzSd4FrAlICY@z>
2021-10-14 16:46 ` [PATCH v2 2/4] dt-bindings: add bus number property Rob Herring
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=20211005143748.2471647-3-pan@semihalf.com \
--to=pan@semihalf.com \
--cc=Jonathan.Cameron@huawei.com \
--cc=Tudor.Ambarus@microchip.com \
--cc=alexandre.belloni@bootlin.com \
--cc=amstan@google.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=arnd@arndb.de \
--cc=devicetree@vger.kernel.org \
--cc=dinguyen@kernel.org \
--cc=jam@semihalf.com \
--cc=jarkko.nikula@linux.intel.com \
--cc=ka@semihalf.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mika.westerberg@linux.intel.com \
--cc=olof@lixom.net \
--cc=p.yadav@ti.com \
--cc=p.zabel@pengutronix.de \
--cc=robh+dt@kernel.org \
--cc=soc@kernel.org \
--cc=sre@kernel.org \
--cc=thunder.leizhen@huawei.com \
--cc=tn@semihalf.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;
as well as URLs for NNTP newsgroup(s).