From: Shenwei Wang <shenwei.wang@nxp.com>
To: Linus Walleij <linusw@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Jonathan Corbet <corbet@lwn.net>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Shenwei Wang <shenwei.wang@nxp.com>, Peng Fan <peng.fan@nxp.com>,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-remoteproc@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-doc@vger.kernel.org, linux-imx@nxp.com
Subject: [PATCH v6 0/5] Enable Remote GPIO over RPMSG on i.MX Platform
Date: Fri, 12 Dec 2025 13:43:36 -0600 [thread overview]
Message-ID: <20251212194341.966387-1-shenwei.wang@nxp.com> (raw)
Support the remote devices on the remote processor via the RPMSG bus on
i.MX platform.
Changes in v6:
- make the driver more generic with the actions below:
rename the driver file to gpio-rpmsg.c
remove the imx related info in the function and variable names
rename the imx_rpmsg.h to rpdev_info.h
create a gpio-rpmsg.yaml and refer it in imx_rproc.yaml
- update the gpio-rpmsg.rst according to the feedback from Andrew and
move the source file to driver-api/gpio
- fix the bug reported by Zhongqiu Han
- remove the I2C related info
Changes in v5:
- move the gpio-rpmsg.rst from admin-guide to staging directory after
discussion with Randy Dunlap.
- add include files with some code improvements per Bartosz's comments.
Changes in v4:
- add a documentation to describe the transport protocol per Andrew's
comments.
- add a new handler to get the gpio direction.
Changes in v3:
- fix various format issue and return value check per Peng 's review
comments.
- add the logic to also populate the subnodes which are not in the
device map per Arnaud's request. (in imx_rproc.c)
- update the yaml per Frank's review comments.
Changes in v2:
- re-implemented the gpio driver per Linus Walleij's feedback by using
GPIOLIB_IRQCHIP helper library.
- fix various format issue per Mathieu/Peng 's review comments.
- update the yaml doc per Rob's feedback
Shenwei Wang (5):
dt-bindings: remoteproc: imx_rproc: Add "rpmsg" subnode support
remoteproc: imx_rproc: Populate devices under "rpmsg" subnode
docs: driver-api: gpio: generic gpio driver over rpmsg bus
gpio: rpmsg: add generic rpmsg GPIO driver
arm64: dts: imx8ulp: Add rpmsg node under imx_rproc
.../devicetree/bindings/gpio/gpio-rpmsg.yaml | 49 ++
.../bindings/remoteproc/fsl,imx-rproc.yaml | 54 ++
Documentation/driver-api/gpio/gpio-rpmsg.rst | 232 +++++++++
Documentation/driver-api/gpio/index.rst | 1 +
arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 27 +
drivers/gpio/Kconfig | 16 +
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-rpmsg.c | 490 ++++++++++++++++++
drivers/remoteproc/imx_rproc.c | 143 +++++
include/linux/rpmsg/rpdev_info.h | 33 ++
10 files changed, 1046 insertions(+)
create mode 100644 Documentation/devicetree/bindings/gpio/gpio-rpmsg.yaml
create mode 100644 Documentation/driver-api/gpio/gpio-rpmsg.rst
create mode 100644 drivers/gpio/gpio-rpmsg.c
create mode 100644 include/linux/rpmsg/rpdev_info.h
--
2.43.0
next reply other threads:[~2025-12-12 19:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 19:43 Shenwei Wang [this message]
2025-12-12 19:43 ` [PATCH v6 1/5] dt-bindings: remoteproc: imx_rproc: Add "rpmsg" subnode support Shenwei Wang
2025-12-12 19:43 ` [PATCH v6 2/5] remoteproc: imx_rproc: Populate devices under "rpmsg" subnode Shenwei Wang
2025-12-12 19:43 ` [PATCH v6 3/5] docs: driver-api: gpio: generic gpio driver over rpmsg bus Shenwei Wang
2025-12-12 19:43 ` [PATCH v6 4/5] gpio: rpmsg: add generic rpmsg GPIO driver Shenwei Wang
2025-12-12 19:43 ` [PATCH v6 5/5] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc Shenwei Wang
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