From: Chris Morgan <macroalpha82@gmail.com>
To: devicetree@vger.kernel.org
Cc: heiko@sntech.de, conor+dt@kernel.org, krzk+dt@kernel.org,
robh@kernel.org, Chris Morgan <macromorgan@hotmail.com>
Subject: [PATCH] arm64: dts: rockchip: Document unused device on i2c1
Date: Tue, 3 Jun 2025 21:41:19 -0500 [thread overview]
Message-ID: <20250604024119.381337-1-macroalpha82@gmail.com> (raw)
From: Chris Morgan <macromorgan@hotmail.com>
Update the i2c1 bus noting that the unknown/unused device at 0x3c is an
iSmartWare SW2001 "encryption IC".
Based on the documentation I was able to find, this IC appears to be
used to authenticate a device for certain programs to ensure they only
run on authorized devices as a form of digital rights management.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
index 233eade30f21..645db9d3d297 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
@@ -469,7 +469,7 @@ regulator-state-mem {
};
&i2c1 {
- /* Unknown/unused device at 0x3c */
+ /* Unused iSmartWare SW2001 encryption device at 0x3c */
status = "disabled";
};
--
2.43.0
next reply other threads:[~2025-06-04 2:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-04 2:41 Chris Morgan [this message]
2025-06-09 10:23 ` [PATCH] arm64: dts: rockchip: Document unused device on i2c1 Heiko Stuebner
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=20250604024119.381337-1-macroalpha82@gmail.com \
--to=macroalpha82@gmail.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=heiko@sntech.de \
--cc=krzk+dt@kernel.org \
--cc=macromorgan@hotmail.com \
--cc=robh@kernel.org \
/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).