From: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
To: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shawn Guo <shawnguo@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>,
Fabio Estevam <fabio.estevam@nxp.com>,
Mark Rutland <mark.rutland@arm.com>,
Nandor Han <nandor.han@ge.com>,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
kernel@collabora.com
Subject: [PATCHv2 0/3] GE Healthcare PPD firmware upgrade driver for ACHC
Date: Tue, 27 Mar 2018 15:52:56 +0200 [thread overview]
Message-ID: <20180327135259.30890-1-sebastian.reichel@collabora.co.uk> (raw)
Hi,
The PPD has a secondary processor from NXP, which can be programmed
from the main system. It is connected to the main processor by having
it's EzPort interface connected to the SPI bus.
This adds a generic driver to handle firmware flashing via NXP EzPort
and adds a custom compatible for the instance found in GE's device.
The reset gpio is only requested during flashing, since it is also
used for resetting other devices. A better solution for the shared
reset gpio is required at some point, but this does neither affect
the userspace interface, nor the DT interface and should not block
upstreaming this driver.
Changes since PATCHv1:
* split DT binding update into its own patch
* add sysfs attribute documentation
* fix problem reported by kbuild test robot
-- Sebastian
Sebastian Reichel (3):
dt-bindings: misc: achc: Make ezport distinguishable
misc: ezport-firmware: new driver
ARM: dts: imx53: PPD: Update ACHC programming interface
Documentation/ABI/testing/sysfs-bus-spi-ezport-fw | 23 +
Documentation/devicetree/bindings/misc/ge-achc.txt | 19 +-
arch/arm/boot/dts/imx53-ppd.dts | 5 +-
drivers/misc/Kconfig | 9 +
drivers/misc/Makefile | 1 +
drivers/misc/ezport-firmware.c | 491 +++++++++++++++++++++
6 files changed, 543 insertions(+), 5 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-bus-spi-ezport-fw
create mode 100644 drivers/misc/ezport-firmware.c
--
2.16.2
next reply other threads:[~2018-03-27 13:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-27 13:52 Sebastian Reichel [this message]
2018-03-27 13:52 ` [PATCHv2 1/3] dt-bindings: misc: achc: Make ezport distinguishable Sebastian Reichel
2018-04-09 18:57 ` Rob Herring
2018-04-09 21:13 ` Sebastian Reichel
2018-04-13 15:33 ` Rob Herring
2018-04-26 14:39 ` Sebastian Reichel
2018-03-27 13:52 ` [PATCHv2 2/3] misc: ezport-firmware: new driver Sebastian Reichel
2018-03-27 13:52 ` [PATCHv2 3/3] ARM: dts: imx53: PPD: Update ACHC programming interface Sebastian Reichel
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=20180327135259.30890-1-sebastian.reichel@collabora.co.uk \
--to=sebastian.reichel@collabora.co.uk \
--cc=arnd@arndb.de \
--cc=devicetree@vger.kernel.org \
--cc=fabio.estevam@nxp.com \
--cc=gregkh@linuxfoundation.org \
--cc=kernel@collabora.com \
--cc=kernel@pengutronix.de \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=nandor.han@ge.com \
--cc=robh+dt@kernel.org \
--cc=shawnguo@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).