From: Gregor Herburger <gregor.herburger@linutronix.de>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Florian Fainelli <florian.fainelli@broadcom.com>,
Ray Jui <rjui@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>,
Eric Anholt <eric@anholt.net>, Stefan Wahren <wahrenst@gmx.net>,
Srinivas Kandagatla <srini@kernel.org>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
Gregor Herburger <gregor.herburger@linutronix.de>
Subject: [PATCH v2 0/4] nvmem: Add Raspberry Pi OTP nvmem driver
Date: Tue, 05 May 2026 09:25:08 +0200 [thread overview]
Message-ID: <20260505-rpi-otp-driver-v2-0-e9176ec72837@linutronix.de> (raw)
Hi,
This series adds support for the Raspberry Pis OTP registers. The
Raspberry Pi has one or more OTP regions. These registers are accessible
through the firmware. Add a driver for it and add updates the devicetree
for the Raspberry Pi 5.
---
Changes in v2:
- register nvmem driver from firmware driver and drop firmware sub nodes
- Use struct_size and __counted_by for dynamic array
- Drop unneeded comment in Kconfig
- Use NVMEM_DEVID_NONE
- Use kzalloc
- Update module description
- Link to v1: https://patch.msgid.link/20260408-rpi-otp-driver-v1-0-e02d1dbe6008@linutronix.de
---
Gregor Herburger (4):
dt-bindings: raspberrypi,bcm2835-firmware: Add bcm2712-firmware compatible
nvmem: Add the Raspberry Pi OTP driver
firmware: raspberrypi: register nvmem driver
arm64: dts: broadcom: bcm2712: add bcm2712-firmware compatible
.../arm/bcm/raspberrypi,bcm2835-firmware.yaml | 4 +-
.../boot/dts/broadcom/bcm2712-rpi-5-b-base.dtsi | 2 +-
drivers/firmware/raspberrypi.c | 59 +++++++++-
drivers/nvmem/Kconfig | 10 ++
drivers/nvmem/Makefile | 1 +
drivers/nvmem/raspberrypi-otp.c | 119 +++++++++++++++++++++
include/soc/bcm2835/raspberrypi-firmware.h | 14 +++
7 files changed, 206 insertions(+), 3 deletions(-)
---
base-commit: f3e6330d7fe42b204af05a2dbc68b379e0ad179e
change-id: 20260408-rpi-otp-driver-75fce1dcff7d
Best regards,
--
Gregor Herburger <gregor.herburger@linutronix.de>
next reply other threads:[~2026-05-05 7:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-05 7:25 Gregor Herburger [this message]
2026-05-05 7:25 ` [PATCH v2 1/4] dt-bindings: raspberrypi,bcm2835-firmware: Add bcm2712-firmware compatible Gregor Herburger
2026-05-05 9:00 ` Rob Herring (Arm)
2026-05-05 7:25 ` [PATCH v2 2/4] nvmem: Add the Raspberry Pi OTP driver Gregor Herburger
2026-05-05 7:25 ` [PATCH v2 3/4] firmware: raspberrypi: register nvmem driver Gregor Herburger
2026-05-05 7:25 ` [PATCH v2 4/4] arm64: dts: broadcom: bcm2712: add bcm2712-firmware compatible Gregor Herburger
2026-05-05 9:21 ` Krzysztof Kozlowski
2026-05-05 9:22 ` Krzysztof Kozlowski
2026-05-05 15:07 ` Gregor Herburger
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=20260505-rpi-otp-driver-v2-0-e9176ec72837@linutronix.de \
--to=gregor.herburger@linutronix.de \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=eric@anholt.net \
--cc=florian.fainelli@broadcom.com \
--cc=gustavoars@kernel.org \
--cc=kees@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=rjui@broadcom.com \
--cc=robh@kernel.org \
--cc=sbranden@broadcom.com \
--cc=srini@kernel.org \
--cc=wahrenst@gmx.net \
/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