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net: ethernet: wiznet: w5X00 add device tree support

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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>
This commit is contained in:
Nicolas Saenz Julienne 2019-06-12 14:25:25 +02:00 • committed by David S. Miller
parent 7a096d579e
commit b9dd694eb0
1 changed files with 22 additions and 2 deletions
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24
drivers/net/ethernet/wiznet/w5100-spi.c
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@ -15,6 +15,7 @@
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/netdevice.h> #include <linux/netdevice.h>
#include <linux/of_net.h> #include <linux/of_net.h>
#include <linux/of_device.h>
#include <linux/spi/spi.h> #include <linux/spi/spi.h>
#include "w5100.h" #include "w5100.h"
@ -409,14 +410,32 @@ static const struct w5100_ops w5500_ops = {
.init = w5500_spi_init, .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) 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; const struct w5100_ops *ops;
kernel_ulong_t driver_data;
int priv_size; int priv_size;
const void *mac = of_get_mac_address(spi->dev.of_node); 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: case W5100:
ops = &w5100_spi_ops; ops = &w5100_spi_ops;
priv_size = 0; priv_size = 0;
@ -453,6 +472,7 @@ static struct spi_driver w5100_spi_driver = {
.driver = { .driver = {
.name = "w5100", .name = "w5100",
.pm = &w5100_pm_ops, .pm = &w5100_pm_ops,
.of_match_table = w5100_of_match,
}, },
.probe = w5100_spi_probe, .probe = w5100_spi_probe,
.remove = w5100_spi_remove, .remove = w5100_spi_remove,