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From: Sebastian Reichel <>
To: Arnd Bergmann <>,
	Greg Kroah-Hartman <>,
	Shawn Guo <>, Rob Herring <>
Cc: Sascha Hauer <>,
	Fabio Estevam <>,
	Mark Rutland <>,
	Nandor Han <>,,,
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: <> (raw)


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


             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

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