netdev - [PATCH v4 net-next 0/6] net: dsa: microchip: Modify KSZ9477 DSA driver in preparation to add other KSZ switch drivers

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Message-ID: <1542758110-1037-1-git-send-email-Tristram.Ha@microchip.com>
Date:   Tue, 20 Nov 2018 15:55:04 -0800
From:   <Tristram.Ha@...rochip.com>
To:     "David S. Miller" <davem@...emloft.net>
CC:     Tristram Ha <Tristram.Ha@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Pavel Machek <pavel@....cz>, <UNGLinuxDriver@...rochip.com>,
        <netdev@...r.kernel.org>
Subject: [PATCH v4 net-next 0/6] net: dsa: microchip: Modify KSZ9477 DSA driver in preparation to add other KSZ switch drivers

From: Tristram Ha <Tristram.Ha@...rochip.com>

This series of patches is to modify the original KSZ9477 DSA driver so
that other KSZ switch drivers can be added and use the common code.

There are several steps to accomplish this achievement.  First is to
rename some function names with a prefix to indicate chip specific
function.  Second is to move common code into header that can be shared.
Last is to modify tag_ksz.c so that it can handle many tail tag formats
used by different KSZ switch drivers.

ksz_common.c will contain the common code used by all KSZ switch drivers.
ksz9477.c will contain KSZ9477 code from the original ksz_common.c.
ksz9477_spi.c is renamed from ksz_spi.c.
ksz9477_reg.h is renamed from ksz_9477_reg.h.
ksz_common.h is added to provide common code access to KSZ switch
drivers.
ksz_spi.h is added to provide common SPI access functions to KSZ SPI
drivers.

v4
- Patches were removed to concentrate on changing driver structure without
adding new code.

v3
- The phy_device structure is used to hold port link information
- A structure is passed in ksz_xmit and ksz_rcv instead of function pointer
- Switch offload forwarding is supported

v2
- Initialize reg_mutex before use
- The alu_mutex is only used inside chip specific functions

v1
- Each patch in the set is self-contained
- Use ksz9477 prefix to indicate KSZ9477 specific code

Tristram Ha (6):
  net: dsa: microchip: replace license with GPL
  net: dsa: microchip: clean up code
  net: dsa: microchip: rename some functions with ksz9477 prefix
  net: dsa: microchip: rename ksz_spi.c to ksz9477_spi.c
  net: dsa: microchip: break KSZ9477 DSA driver into two files
  net: dsa: microchip: rename ksz_9477_reg.h to ksz9477_reg.h

 drivers/net/dsa/microchip/Kconfig                  |   16 +-
 drivers/net/dsa/microchip/Makefile                 |    5 +-
 drivers/net/dsa/microchip/ksz9477.c                | 1316 ++++++++++++++++++++
 .../microchip/{ksz_9477_reg.h => ksz9477_reg.h}    |   17 +-
 drivers/net/dsa/microchip/ksz9477_spi.c            |  177 +++
 drivers/net/dsa/microchip/ksz_common.c             | 1183 +++---------------
 drivers/net/dsa/microchip/ksz_common.h             |  214 ++++
 drivers/net/dsa/microchip/ksz_priv.h               |  245 ++--
 drivers/net/dsa/microchip/ksz_spi.c                |  217 ----
 drivers/net/dsa/microchip/ksz_spi.h                |   69 +
 10 files changed, 2039 insertions(+), 1420 deletions(-)
 create mode 100644 drivers/net/dsa/microchip/ksz9477.c
 rename drivers/net/dsa/microchip/{ksz_9477_reg.h => ksz9477_reg.h} (98%)
 create mode 100644 drivers/net/dsa/microchip/ksz9477_spi.c
 create mode 100644 drivers/net/dsa/microchip/ksz_common.h
 delete mode 100644 drivers/net/dsa/microchip/ksz_spi.c
 create mode 100644 drivers/net/dsa/microchip/ksz_spi.h

-- 
1.9.1