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Date: Sat, 9 Jan 2021 19:02:13 +0100
From: Jonathan Neuschäfer <j.neuschaefer@....net>
To: linux-kernel@...r.kernel.org
Cc: Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
Jonathan Neuschäfer <j.neuschaefer@....net>,
Thierry Reding <thierry.reding@...il.com>,
Uwe Kleine-König
<u.kleine-koenig@...gutronix.de>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Sam Ravnborg <sam@...nborg.org>,
Linus Walleij <linus.walleij@...aro.org>,
Heiko Stuebner <heiko.stuebner@...obroma-systems.com>,
Stephan Gerhold <stephan@...hold.net>,
Lubomir Rintel <lkundrak@...sk>,
Mark Brown <broonie@...nel.org>, allen <allen.chen@....com.tw>,
Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
devicetree@...r.kernel.org, linux-pwm@...r.kernel.org,
linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Heiko Stuebner <heiko@...ech.de>,
Josua Mayer <josua.mayer@....eu>,
Andreas Kemnade <andreas@...nade.info>,
Arnd Bergmann <arnd@...db.de>, Daniel Palmer <daniel@...f.com>,
Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v7 0/7] Netronix embedded controller driver for Kobo and Tolino ebook readers
This patchset adds basic support for the embedded controller found on
older ebook reader boards designed by/with the ODM Netronix Inc.[1] and
sold by Kobo or Tolino, for example the Kobo Aura and the Tolino Shine.
These drivers are based on information contained in the vendor kernel
sources, but in order to all information in a single place, I documented
the register interface of the EC on GitHub[2].
[1]: http://www.netronixinc.com/products.aspx?ID=1
[2]: https://github.com/neuschaefer/linux/wiki/Netronix-MSP430-embedded-controller
v7:
- Adjust the RTC patch to a change in the RTC API:
rtc_register_device is now devm_rtc_register_device.
- Add a #define for the known firmware version (0xd726).
Lee Jones suggested doing this in a follow-up patch, but since I'm
respinning the series anyway, I'm doing it here.
v6:
- Additional cleanups in the PWM driver
- Added Lee Jones' ACK to the MFD driver patch
v5:
- https://lore.kernel.org/lkml/20201201011513.1627028-1-j.neuschaefer@gmx.net/
- Avoid truncation of PWM period and duty cycle to 32 bits
- A few cleanups and additional comments in the PWM driver
- Use regmap_multi_reg_write
v4:
- https://lore.kernel.org/lkml/20201122222739.1455132-1-j.neuschaefer@gmx.net/
- Spell out ODM (original design manufacturer)
- Solve corner cases in the RTC driver
- Clean up use of log levels vs. error codes
- Add more comments explaining some peculiarities
- Add missing MODULE_ALIAS lines
- Various other cleanups
v3:
- https://lore.kernel.org/lkml/20200924192455.2484005-1-j.neuschaefer@gmx.net/
- A few code cleanups
- A few devicetree related cleanups
- PWM and RTC functionality were moved from subnodes in the devicetree to
the main node. This also means that the subdrivers no longer need DT
compatible strings, but are instead loaded via the mfd_cell mechanism.
- The drivers are now published under GPLv2-or-later rather than GPLv2-only.
v2:
- https://lore.kernel.org/lkml/20200905133230.1014581-1-j.neuschaefer@gmx.net/
- Moved txt DT bindings to patch descriptions and removed patch 1/10
"DT bindings in plain text format"
- New patch 7/10 "rtc: Introduce RTC_TIMESTAMP_END_2255"
- Rebased on 5.9-rc3
- Various other changes which are documented in each patch
v1:
- https://lore.kernel.org/lkml/20200620223915.1311485-1-j.neuschaefer@gmx.net/
Jonathan Neuschäfer (7):
dt-bindings: Add vendor prefix for Netronix, Inc.
dt-bindings: mfd: Add binding for Netronix embedded controller
mfd: Add base driver for Netronix embedded controller
pwm: ntxec: Add driver for PWM function in Netronix EC
rtc: New driver for RTC in Netronix embedded controller
MAINTAINERS: Add entry for Netronix embedded controller
ARM: dts: imx50-kobo-aura: Add Netronix embedded controller
.../bindings/mfd/netronix,ntxec.yaml | 76 ++++++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
MAINTAINERS | 9 +
arch/arm/boot/dts/imx50-kobo-aura.dts | 16 +-
drivers/mfd/Kconfig | 11 +
drivers/mfd/Makefile | 1 +
drivers/mfd/ntxec.c | 216 ++++++++++++++++++
drivers/pwm/Kconfig | 8 +
drivers/pwm/Makefile | 1 +
drivers/pwm/pwm-ntxec.c | 182 +++++++++++++++
drivers/rtc/Kconfig | 8 +
drivers/rtc/Makefile | 1 +
drivers/rtc/rtc-ntxec.c | 143 ++++++++++++
include/linux/mfd/ntxec.h | 37 +++
14 files changed, 710 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml
create mode 100644 drivers/mfd/ntxec.c
create mode 100644 drivers/pwm/pwm-ntxec.c
create mode 100644 drivers/rtc/rtc-ntxec.c
create mode 100644 include/linux/mfd/ntxec.h
--
2.29.2
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