From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-renesas-soc@vger.kernel.org
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Conor Dooley <conor+dt@kernel.org>,
devicetree@vger.kernel.org, Frank Li <Frank.Li@nxp.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Kees Cook <kees@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
linux-hardening@vger.kernel.org, linux-i3c@lists.infradead.org,
Magnus Damm <magnus.damm@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh@kernel.org>,
Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Subject: [PATCH 0/2] i3c: add support for the Renesas controller
Date: Mon, 14 Jul 2025 11:12:07 +0200 [thread overview]
Message-ID: <20250714091211.20497-1-wsa+renesas@sang-engineering.com> (raw)
Here is a basic driver for the I3C IP found in various Renesas SoCs like
RZ/G3S and G3E. Missing features to be added incrementally are IBI,
HotJoin and maybe target support. Other than that, this driver has been
tested with I3C pure busses (2 targets) and mixed busses (2 I3C +
various I2C targets). DAA and reading/writing to the temperature sensors
worked reliably at different speeds. Scoping the bus, the output from
the protocol analyzer seems reasonable, too. It was created by merging
two versions of it from two different BSPs. Then, improved according to
code analyzers, cleaned up with regard to coding style, and then
refactored to hopefully match I3C subsystem standards.
Changes since RFC are described in the individual patches. A branch with
enablement patches for RZ/G3S+G3E can be found here:
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/g3s/i3c
Looking forward to comments,
Wolfram
Tommaso Merciai (1):
dt-bindings: i3c: renesas,i3c: Add binding for Renesas I3C controller
Wolfram Sang (1):
i3c: add driver for Renesas I3C controller
.../devicetree/bindings/i3c/renesas,i3c.yaml | 180 +++
MAINTAINERS | 7 +
drivers/i3c/master/Kconfig | 10 +
drivers/i3c/master/Makefile | 1 +
drivers/i3c/master/renesas-i3c.c | 1433 +++++++++++++++++
5 files changed, 1631 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i3c/renesas,i3c.yaml
create mode 100644 drivers/i3c/master/renesas-i3c.c
--
2.47.2
next reply other threads:[~2025-07-14 9:12 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-14 9:12 Wolfram Sang [this message]
2025-07-14 9:12 ` [PATCH 1/2] dt-bindings: i3c: renesas,i3c: Add binding for Renesas I3C controller Wolfram Sang
2025-07-15 3:44 ` Rob Herring
2025-07-15 8:49 ` Wolfram Sang
2025-07-14 9:12 ` [PATCH 2/2] i3c: add driver " Wolfram Sang
2025-07-15 15:04 ` Frank Li
2025-07-16 11:53 ` Wolfram Sang
2025-07-16 16:45 ` Frank Li
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