diff options
| author | Nicolas Saenz Julienne <nsaenzjulienne@suse.de> | 2019-06-12 14:25:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-12 09:52:04 -0700 |
| commit | b9dd694eb058b30575f73af8950b35ab93a7c65c (patch) | |
| tree | 7c8e7225a948e5e9445cea6f6ec81d6ac6b388ea | |
| parent | 7a096d579e8e2bd8b8ff34d5ef3093cd9bf3f13b (diff) | |
net: ethernet: wiznet: w5X00 add device tree support
The w5X00 chip provides an SPI to Ethernet inteface. This patch allows
platform devices to be defined through the device tree.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/wiznet/w5100-spi.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/net/ethernet/wiznet/w5100-spi.c b/drivers/net/ethernet/wiznet/w5100-spi.c index 918b3e50850a..2b4126d2427d 100644 --- a/drivers/net/ethernet/wiznet/w5100-spi.c +++ b/drivers/net/ethernet/wiznet/w5100-spi.c @@ -15,6 +15,7 @@ #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/of_net.h> +#include <linux/of_device.h> #include <linux/spi/spi.h> #include "w5100.h" @@ -409,14 +410,32 @@ static const struct w5100_ops w5500_ops = { .init = w5500_spi_init, }; +static const struct of_device_id w5100_of_match[] = { + { .compatible = "wiznet,w5100", .data = (const void*)W5100, }, + { .compatible = "wiznet,w5200", .data = (const void*)W5200, }, + { .compatible = "wiznet,w5500", .data = (const void*)W5500, }, + { }, +}; +MODULE_DEVICE_TABLE(of, w5100_of_match); + static int w5100_spi_probe(struct spi_device *spi) { - const struct spi_device_id *id = spi_get_device_id(spi); + const struct of_device_id *of_id; const struct w5100_ops *ops; + kernel_ulong_t driver_data; int priv_size; const void *mac = of_get_mac_address(spi->dev.of_node); - switch (id->driver_data) { + if (spi->dev.of_node) { + of_id = of_match_device(w5100_of_match, &spi->dev); + if (!of_id) + return -ENODEV; + driver_data = (kernel_ulong_t)of_id->data; + } else { + driver_data = spi_get_device_id(spi)->driver_data; + } + + switch (driver_data) { case W5100: ops = &w5100_spi_ops; priv_size = 0; @@ -453,6 +472,7 @@ static struct spi_driver w5100_spi_driver = { .driver = { .name = "w5100", .pm = &w5100_pm_ops, + .of_match_table = w5100_of_match, }, .probe = w5100_spi_probe, .remove = w5100_spi_remove, |