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]. As previously, I'm not sure I got the YAML DT bindings right. I have included the plain text DT bindings for reference, in the patch descriptions where they are relevant. [1]: http://www.netronixinc.com/products.aspx?ID=1 [2]: https://github.com/neuschaefer/linux/wiki/Netronix-MSP430-embedded-controller Changes in v2: - 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@xxxxxxx/ Jonathan Neuschäfer (10): dt-bindings: Add vendor prefix for Netronix, Inc. dt-bindings: mfd: Add binding for Netronix's embedded controller mfd: Add base driver for Netronix embedded controller dt-bindings: pwm: Add bindings for PWM function in Netronix EC pwm: ntxec: Add driver for PWM function in Netronix EC dt-bindings: rtc: Add bindings for Netronix embedded controller RTC rtc: Introduce RTC_TIMESTAMP_END_2255 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 | 83 +++++++ .../bindings/pwm/netronix,ntxec-pwm.yaml | 33 +++ .../bindings/rtc/netronix,ntxec-rtc.yaml | 27 +++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 11 + arch/arm/boot/dts/imx50-kobo-aura.dts | 27 ++- drivers/mfd/Kconfig | 7 + drivers/mfd/Makefile | 1 + drivers/mfd/ntxec.c | 216 ++++++++++++++++++ drivers/pwm/Kconfig | 8 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-ntxec.c | 160 +++++++++++++ drivers/rtc/Kconfig | 8 + drivers/rtc/Makefile | 1 + drivers/rtc/rtc-ntxec.c | 130 +++++++++++ include/linux/mfd/ntxec.h | 24 ++ include/linux/rtc.h | 1 + 17 files changed, 739 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/mfd/netronix,ntxec.yaml create mode 100644 Documentation/devicetree/bindings/pwm/netronix,ntxec-pwm.yaml create mode 100644 Documentation/devicetree/bindings/rtc/netronix,ntxec-rtc.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 -- 2.28.0
