Hi all, This patch series adds support for platform data using the new code from net/dsa/dsa2.c. The motivation behind this is that we have a bit of in tree platforms (ar7, bcm47xx, x86, others) that could be benefiting from the new dsa_register_switch() API model but do not support Device Tree, nor is there a plan to bring Device Tree to these platforms (time vs. benefits).
The approach taken here is to introduced a new set of platform data structures: - dsa2_platform_data: per-switch platform data information - dsa2_port_data: per-port platform data information - dsa2_port_link: per-port link topology The platform data is mapped as closely as possible to the Device Tree binding. Where needed the code is looking either specifically for DT attributes/properties, or parses the platform data, unlike net/dsa/dsa.c we do not try to make the DT code allocate and fit within the platform data, but that could be an option if deemed necessary. This was tested against a "loopback" driver which is available here, and which was built as a module and into the kernel, modprobe & rmmod were succesful and working: https://github.com/ffainelli/linux/blob/27024f4c9b43cf879348baa5445763c690fbc618/drivers/net/dsa/dsa_loop.c in two configurations: - first configuration has 4 switches connected in a cascade [1] - second configuration is the actual binding example [2] [1]: https://github.com/ffainelli/linux/commit/0aa1e98c027e8e41ed2f83825da82a3d8a1c3ae2 [2]: https://github.com/ffainelli/linux/commit/27024f4c9b43cf879348baa5445763c690fbc618 Florian Fainelli (6): net: dsa: Pass device pointer to dsa_register_switch net: dsa: Make most functions take a dsa_port argument net: dsa: Suffix function manipulating device_node with _dn net: dsa: Move ports assignment closer to error checking net: dsa: Export dev_to_net_device() net: dsa: Add support for platform data drivers/net/dsa/b53/b53_common.c | 2 +- drivers/net/dsa/mv88e6xxx/chip.c | 7 +- include/linux/platform_data/dsa.h | 61 +++++++++++ include/net/dsa.h | 10 +- net/dsa/Kconfig | 1 + net/dsa/dsa.c | 58 ++++++---- net/dsa/dsa2.c | 216 ++++++++++++++++++++++++++++---------- net/dsa/dsa_priv.h | 4 +- 8 files changed, 273 insertions(+), 86 deletions(-) create mode 100644 include/linux/platform_data/dsa.h -- 2.7.4
