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path: root/drivers/net/ethernet/ti/davinci_emac.c
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Diffstat (limited to 'drivers/net/ethernet/ti/davinci_emac.c')
-rw-r--r--drivers/net/ethernet/ti/davinci_emac.c81
1 files changed, 43 insertions, 38 deletions
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 31df3267a01a..ed8116fb05e9 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -38,6 +38,7 @@
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
+#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/semaphore.h>
#include <linux/phy.h>
@@ -47,10 +48,7 @@
#include <linux/pm_runtime.h>
#include <linux/davinci_emac.h>
#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
#include <linux/of_mdio.h>
-#include <linux/of_irq.h>
#include <linux/of_net.h>
#include <linux/mfd/syscon.h>
@@ -113,7 +111,6 @@ static const char emac_version_string[] = "TI DaVinci EMAC Linux v6.1";
#define EMAC_DEF_RX_NUM_DESC (128)
#define EMAC_DEF_MAX_TX_CH (1) /* Max TX channels configured */
#define EMAC_DEF_MAX_RX_CH (1) /* Max RX channels configured */
-#define EMAC_POLL_WEIGHT (64) /* Default NAPI poll weight */
/* Buffer descriptor parameters */
#define EMAC_DEF_TX_MAX_SERVICE (32) /* TX max service BD's */
@@ -375,8 +372,8 @@ static char *emac_rxhost_errcodes[16] = {
static void emac_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
- strlcpy(info->driver, emac_version_string, sizeof(info->driver));
- strlcpy(info->version, EMAC_MODULE_VERSION, sizeof(info->version));
+ strscpy(info->driver, emac_version_string, sizeof(info->driver));
+ strscpy(info->version, EMAC_MODULE_VERSION, sizeof(info->version));
}
/**
@@ -950,7 +947,7 @@ static void emac_tx_handler(void *token, int len, int status)
*
* Returns success(NETDEV_TX_OK) or error code (typically out of desc's)
*/
-static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
+static netdev_tx_t emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
{
struct device *emac_dev = &ndev->dev;
int ret_code;
@@ -1422,9 +1419,8 @@ static int emac_dev_open(struct net_device *ndev)
struct phy_device *phydev = NULL;
struct device *phy = NULL;
- ret = pm_runtime_get_sync(&priv->pdev->dev);
+ ret = pm_runtime_resume_and_get(&priv->pdev->dev);
if (ret < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
dev_err(&priv->pdev->dev, "%s: failed to get_sync(%d)\n",
__func__, ret);
return ret;
@@ -1604,6 +1600,7 @@ static int emac_dev_stop(struct net_device *ndev)
int irq_num;
struct emac_priv *priv = netdev_priv(ndev);
struct device *emac_dev = &ndev->dev;
+ int ret = 0;
/* inform the upper layers. */
netif_stop_queue(ndev);
@@ -1618,17 +1615,31 @@ static int emac_dev_stop(struct net_device *ndev)
phy_disconnect(ndev->phydev);
/* Free IRQ */
- while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) {
- for (irq_num = res->start; irq_num <= res->end; irq_num++)
- free_irq(irq_num, priv->ndev);
- i++;
+ if (dev_of_node(&priv->pdev->dev)) {
+ do {
+ ret = platform_get_irq_optional(priv->pdev, i);
+ if (ret < 0 && ret != -ENXIO)
+ break;
+ if (ret > 0) {
+ free_irq(ret, priv->ndev);
+ } else {
+ ret = 0;
+ break;
+ }
+ } while (++i);
+ } else {
+ while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, i))) {
+ for (irq_num = res->start; irq_num <= res->end; irq_num++)
+ free_irq(irq_num, priv->ndev);
+ i++;
+ }
}
if (netif_msg_drv(priv))
dev_notice(emac_dev, "DaVinci EMAC: %s stopped\n", ndev->name);
pm_runtime_put(&priv->pdev->dev);
- return 0;
+ return ret;
}
/**
@@ -1646,9 +1657,8 @@ static struct net_device_stats *emac_dev_getnetstats(struct net_device *ndev)
u32 stats_clear_mask;
int err;
- err = pm_runtime_get_sync(&priv->pdev->dev);
+ err = pm_runtime_resume_and_get(&priv->pdev->dev);
if (err < 0) {
- pm_runtime_put_noidle(&priv->pdev->dev);
dev_err(&priv->pdev->dev, "%s: failed to get_sync(%d)\n",
__func__, err);
return &ndev->stats;
@@ -1714,13 +1724,10 @@ static const struct net_device_ops emac_netdev_ops = {
#endif
};
-static const struct of_device_id davinci_emac_of_match[];
-
static struct emac_platform_data *
davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
{
struct device_node *np;
- const struct of_device_id *match;
const struct emac_platform_data *auxdata;
struct emac_platform_data *pdata = NULL;
@@ -1767,9 +1774,8 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
pdata->interrupt_disable = auxdata->interrupt_disable;
}
- match = of_match_device(davinci_emac_of_match, &pdev->dev);
- if (match && match->data) {
- auxdata = match->data;
+ auxdata = device_get_match_data(&pdev->dev);
+ if (auxdata) {
pdata->version = auxdata->version;
pdata->hw_ram_addr = auxdata->hw_ram_addr;
}
@@ -1922,26 +1928,27 @@ static int davinci_emac_probe(struct platform_device *pdev)
goto err_free_rxchan;
ndev->irq = rc;
- rc = davinci_emac_try_get_mac(pdev, res_ctrl ? 0 : 1, priv->mac_addr);
- if (!rc)
- eth_hw_addr_set(ndev, priv->mac_addr);
-
+ /* If the MAC address is not present, read the registers from the SoC */
if (!is_valid_ether_addr(priv->mac_addr)) {
- /* Use random MAC if still none obtained. */
- eth_hw_addr_random(ndev);
- memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
- dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
- priv->mac_addr);
+ rc = davinci_emac_try_get_mac(pdev, res_ctrl ? 0 : 1, priv->mac_addr);
+ if (!rc)
+ eth_hw_addr_set(ndev, priv->mac_addr);
+
+ if (!is_valid_ether_addr(priv->mac_addr)) {
+ /* Use random MAC if still none obtained. */
+ eth_hw_addr_random(ndev);
+ memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
+ dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
+ priv->mac_addr);
+ }
}
-
ndev->netdev_ops = &emac_netdev_ops;
ndev->ethtool_ops = &ethtool_ops;
- netif_napi_add(ndev, &priv->napi, emac_poll, EMAC_POLL_WEIGHT);
+ netif_napi_add(ndev, &priv->napi, emac_poll);
pm_runtime_enable(&pdev->dev);
- rc = pm_runtime_get_sync(&pdev->dev);
+ rc = pm_runtime_resume_and_get(&pdev->dev);
if (rc < 0) {
- pm_runtime_put_noidle(&pdev->dev);
dev_err(&pdev->dev, "%s: failed to get_sync(%d)\n",
__func__, rc);
goto err_napi_del;
@@ -1991,7 +1998,7 @@ err_free_netdev:
* Called when removing the device driver. We disable clock usage and release
* the resources taken up by the driver and unregister network device
*/
-static int davinci_emac_remove(struct platform_device *pdev)
+static void davinci_emac_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct emac_priv *priv = netdev_priv(ndev);
@@ -2011,8 +2018,6 @@ static int davinci_emac_remove(struct platform_device *pdev)
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
free_netdev(ndev);
-
- return 0;
}
static int davinci_emac_suspend(struct device *dev)
generated by cgit (git 2.34.1) at 2025-12-26 13:26:23 +0000