From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: linux-kernel@vger.kernel.org
Cc: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org
Subject: [PATCH 1/2] net: ethernet: wiznet: w5X00 add device tree support
Date: Tue, 30 Apr 2019 20:52:13 +0200 [thread overview]
Message-ID: <20190430185215.21685-1-nsaenzjulienne@suse.de> (raw)
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>
---
drivers/net/ethernet/wiznet/w5100-spi.c | 24 ++++++++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/wiznet/w5100-spi.c b/drivers/net/ethernet/wiznet/w5100-spi.c
index 93a2d3c07303..86ac8a06f69b 100644
--- a/drivers/net/ethernet/wiznet/w5100-spi.c
+++ b/drivers/net/ethernet/wiznet/w5100-spi.c
@@ -16,6 +16,7 @@
#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"
@@ -410,14 +411,32 @@ 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;
@@ -454,6 +473,7 @@ 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,
--
2.21.0
next reply other threads:[~2019-04-30 18:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-30 18:52 Nicolas Saenz Julienne [this message]
2019-04-30 18:52 ` [PATCH 2/2] dt-bindings: net: wiznet: add w5x00 support Nicolas Saenz Julienne
2019-05-02 21:09 ` Rob Herring
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