Re: [PATCH v7 3/3] net: ax88796c: ASIX AX88796C SPI Ethernet Adapter Driver

ASIX AX88796[1] is a versatile ethernet adapter chip, that can be
connected to a CPU with a 8/16-bit bus or with an SPI. This driver
supports SPI connection.

The driver has been ported from the vendor kernel for ARTIK5[2]
boards. Several changes were made to adapt it to the current kernel
which include:

+ updated DT configuration,
+ clock configuration moved to DT,
+ new timer, ethtool and gpio APIs,
+ dev_* instead of pr_* and custom printk() wrappers,
+ removed awkward vendor power managemtn.
+ introduced ethtool tunable to control SPI compression

[1] https://www.asix.com.tw/products.php?op=pItemdetail&PItemID=104;65;86&PLine=65
[2] https://git.tizen.org/cgit/profile/common/platform/kernel/linux-3.10-artik/

The other ax88796 driver is for NE2000 compatible AX88796L chip. These
chips are not compatible. Hence, two separate drivers are required.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
---
 MAINTAINERS                                |    6 +
 drivers/net/ethernet/Kconfig               |    1 +
 drivers/net/ethernet/Makefile              |    1 +
 drivers/net/ethernet/asix/Kconfig          |   35 +
 drivers/net/ethernet/asix/Makefile         |    6 +
 drivers/net/ethernet/asix/ax88796c_ioctl.c |  221 ++++
 drivers/net/ethernet/asix/ax88796c_ioctl.h |   26 +
 drivers/net/ethernet/asix/ax88796c_main.c  | 1132 ++++++++++++++++++++
 drivers/net/ethernet/asix/ax88796c_main.h  |  561 ++++++++++
 drivers/net/ethernet/asix/ax88796c_spi.c   |  112 ++
 drivers/net/ethernet/asix/ax88796c_spi.h   |   69 ++
 include/uapi/linux/ethtool.h               |    1 +
 net/ethtool/common.c                       |    1 +
 13 files changed, 2172 insertions(+)
 create mode 100644 drivers/net/ethernet/asix/Kconfig
 create mode 100644 drivers/net/ethernet/asix/Makefile
 create mode 100644 drivers/net/ethernet/asix/ax88796c_ioctl.c
 create mode 100644 drivers/net/ethernet/asix/ax88796c_ioctl.h
 create mode 100644 drivers/net/ethernet/asix/ax88796c_main.c
 create mode 100644 drivers/net/ethernet/asix/ax88796c_main.h
 create mode 100644 drivers/net/ethernet/asix/ax88796c_spi.c
 create mode 100644 drivers/net/ethernet/asix/ax88796c_spi.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 14b8ec0bb58b..930dc859d4f7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS

@@ -2812,6 +2812,12 @@ S:	Maintained
 F:	Documentation/hwmon/asc7621.rst
 F:	drivers/hwmon/asc7621.c
 
+ASIX AX88796C SPI ETHERNET ADAPTER
+M:	Łukasz Stelmach <l.stelmach@samsung.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/asix,ax99706c-spi.yaml