linux-kernel - [PATCH v2 0/6] Add support for Actions Semi Owl socinfo

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Date:   Tue, 30 Mar 2021 16:48:15 +0300
From:   Cristian Ciocaltea <cristian.ciocaltea@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-actions@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/6] Add support for Actions Semi Owl socinfo

This patchset adds a socinfo driver which provides information about
Actions Semi Owl SoCs to user space via sysfs: machine, family, soc_id,
serial_number.

Please note the serial number is currently available only for the S500
SoC variant.

This has been tested on the S500 SoC based RoseapplePi SBC.

Thanks,
Cristi

Changes in v2:
 - Exposed the memory range for reading the SoC serial number under
   /reserved-memory DT node, according to Rob's review; as a consequence
   added a new binding document (actions,owl-soc-serial.yaml) and updated
   owl-socinfo.yaml

 - Replaced the unportable usage of system_serial_{low,high} globals
   with a public API to provide external access to SoC serial number
   parts (e.g. Owl Ethernet MAC driver will use this to generate a
   stable MAC address)

 - Rebased patch series on v5.12-rc5

Cristian Ciocaltea (6):
  dt-bindings: reserved-memory: Add Owl SoC serial number binding
  dt-bindings: soc: actions: Add Actions Semi Owl socinfo binding
  soc: actions: Add Actions Semi Owl socinfo driver
  arm: dts: owl-s500: Add reserved-memory range for Owl SoC serial
    number
  arm: dts: owl-s500: Add socinfo support
  MAINTAINERS: Add entries for Owl reserved-memory and socinfo bindings

 .../actions,owl-soc-serial.yaml               |  53 ++++++
 .../bindings/soc/actions/owl-socinfo.yaml     |  57 +++++++
 MAINTAINERS                                   |   2 +
 arch/arm/boot/dts/owl-s500.dtsi               |  13 +-
 drivers/soc/actions/Kconfig                   |   8 +
 drivers/soc/actions/Makefile                  |   1 +
 drivers/soc/actions/owl-socinfo.c             | 152 ++++++++++++++++++
 include/linux/soc/actions/owl-serial-number.h |  20 +++
 8 files changed, 305 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/reserved-memory/actions,owl-soc-serial.yaml
 create mode 100644 Documentation/devicetree/bindings/soc/actions/owl-socinfo.yaml
 create mode 100644 drivers/soc/actions/owl-socinfo.c
 create mode 100644 include/linux/soc/actions/owl-serial-number.h

-- 
2.31.1