From: "Pali Rohár" <pali@kernel.org>
To: Andrew Lunn <andrew@lunn.ch>,
Gregory Clement <gregory.clement@bootlin.com>,
Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Marek Behun <marek.behun@nic.cz>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ARM: dts: turris-omnia: Add mcu node
Date: Fri, 19 Aug 2022 15:11:52 +0200 [thread overview]
Message-ID: <20220819131152.6513-1-pali@kernel.org> (raw)
At i2c address 0x2a is MCU command interface which provides access to GPIOs
connected to Turris Omnia MCU. So define mcu node in Turris Omnia DTS file.
Signed-off-by: Pali Rohár <pali@kernel.org>
---
Same change was already sent to U-Boot project together with driver. As
Turris Omnia DTS file is shared between Linux kernel U-Boot, I'm sending
this change also in Linux. There is a plan to write also Linux driver for
Turris Omnia MCU, like there is already in U-Boot.
https://source.denx.de/u-boot/u-boot/-/commit/832738974806e6264a3d0ac2aaa92d0f662fd128
https://source.denx.de/u-boot/u-boot/-/blob/master/drivers/gpio/turris_omnia_mcu.c
---
arch/arm/boot/dts/armada-385-turris-omnia.dts | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts
index f4878df39753..f655e9229d68 100644
--- a/arch/arm/boot/dts/armada-385-turris-omnia.dts
+++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts
@@ -184,7 +184,13 @@
#size-cells = <0>;
reg = <0>;
- /* STM32F0 command interface at address 0x2a */
+ /* MCU command i2c API */
+ mcu: mcu@2a {
+ compatible = "cznic,turris-omnia-mcu";
+ reg = <0x2a>;
+ gpio-controller;
+ #gpio-cells = <3>;
+ };
led-controller@2b {
compatible = "cznic,turris-omnia-leds";
--
2.20.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2022-08-19 13:22 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-19 13:11 Pali Rohár [this message]
2022-08-31 14:28 ` [PATCH] ARM: dts: turris-omnia: Add mcu node Pali Rohár
2022-09-01 22:45 ` Andrew Lunn
2022-09-03 2:39 ` Marek Behún
2022-09-03 15:12 ` Andrew Lunn
2022-09-03 15:27 ` Pali Rohár
2022-09-04 1:02 ` Andrew Lunn
2022-09-05 16:19 ` Florian Fainelli
2022-09-05 16:34 ` Krzysztof Kozlowski
2022-09-05 17:12 ` Pali Rohár
2022-09-06 6:34 ` Krzysztof Kozlowski
2022-09-06 7:24 ` Pali Rohár
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=20220819131152.6513-1-pali@kernel.org \
--to=pali@kernel.org \
--cc=andrew@lunn.ch \
--cc=devicetree@vger.kernel.org \
--cc=gregory.clement@bootlin.com \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marek.behun@nic.cz \
--cc=robh+dt@kernel.org \
--cc=sebastian.hesselbarth@gmail.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).