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Message-Id: <20200517003354.233373-14-marex@denx.de>
Date: Sun, 17 May 2020 02:33:47 +0200
From: Marek Vasut <marex@...x.de>
To: netdev@...r.kernel.org
Cc: Marek Vasut <marex@...x.de>, Andrew Lunn <andrew@...n.ch>,
"David S . Miller" <davem@...emloft.net>,
Lukas Wunner <lukas@...ner.de>, Petr Stetiar <ynezz@...e.cz>,
YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH V6 13/20] net: ks8851: Split out SPI specific code from probe() and remove()
Factor out common code into ks8851_probe_common() and
ks8851_remove_common() to permit both SPI and parallel
bus driver variants to use the common code path for
both probing and removal.
There should be no functional change.
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Signed-off-by: Marek Vasut <marex@...x.de>
Cc: David S. Miller <davem@...emloft.net>
Cc: Lukas Wunner <lukas@...ner.de>
Cc: Petr Stetiar <ynezz@...e.cz>
Cc: YueHaibing <yuehaibing@...wei.com>
---
V2: - Add RB from Andrew
- Rework on top of locking patches, drop RB
V3: No change
V4: No change
V5: Pass message enable as parameter to common probe function,
so the MODULE_* bits can be per-driver
V6: No change
---
drivers/net/ethernet/micrel/ks8851.c | 86 ++++++++++++++++------------
1 file changed, 48 insertions(+), 38 deletions(-)
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index 482c65b1accf..4283ba5bee81 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -1431,27 +1431,15 @@ static int ks8851_resume(struct device *dev)
static SIMPLE_DEV_PM_OPS(ks8851_pm_ops, ks8851_suspend, ks8851_resume);
-static int ks8851_probe(struct spi_device *spi)
+static int ks8851_probe_common(struct net_device *netdev, struct device *dev,
+ int msg_en)
{
- struct device *dev = &spi->dev;
- struct ks8851_net_spi *kss;
- struct net_device *netdev;
- struct ks8851_net *ks;
- int ret;
+ struct ks8851_net *ks = netdev_priv(netdev);
unsigned cider;
int gpio;
-
- netdev = devm_alloc_etherdev(dev, sizeof(struct ks8851_net_spi));
- if (!netdev)
- return -ENOMEM;
-
- spi->bits_per_word = 8;
-
- ks = netdev_priv(netdev);
- kss = to_ks8851_spi(ks);
+ int ret;
ks->netdev = netdev;
- kss->spidev = spi;
ks->tx_space = 6144;
gpio = of_get_named_gpio_flags(dev->of_node, "reset-gpios", 0, NULL);
@@ -1497,23 +1485,11 @@ static int ks8851_probe(struct spi_device *spi)
gpio_set_value(gpio, 1);
}
- mutex_init(&kss->lock);
spin_lock_init(&ks->statelock);
- INIT_WORK(&kss->tx_work, ks8851_tx_work);
INIT_WORK(&ks->rxctrl_work, ks8851_rxctrl_work);
- /* initialise pre-made spi transfer messages */
-
- spi_message_init(&kss->spi_msg1);
- spi_message_add_tail(&kss->spi_xfer1, &kss->spi_msg1);
-
- spi_message_init(&kss->spi_msg2);
- spi_message_add_tail(&kss->spi_xfer2[0], &kss->spi_msg2);
- spi_message_add_tail(&kss->spi_xfer2[1], &kss->spi_msg2);
-
/* setup EEPROM state */
-
ks->eeprom.data = ks;
ks->eeprom.width = PCI_EEPROM_WIDTH_93C46;
ks->eeprom.register_read = ks8851_eeprom_regread;
@@ -1527,12 +1503,12 @@ static int ks8851_probe(struct spi_device *spi)
ks->mii.mdio_read = ks8851_phy_read;
ks->mii.mdio_write = ks8851_phy_write;
- dev_info(dev, "message enable is %d\n", msg_enable);
+ dev_info(dev, "message enable is %d\n", msg_en);
/* set the default message enable */
- ks->msg_enable = netif_msg_init(msg_enable, (NETIF_MSG_DRV |
- NETIF_MSG_PROBE |
- NETIF_MSG_LINK));
+ ks->msg_enable = netif_msg_init(msg_en, NETIF_MSG_DRV |
+ NETIF_MSG_PROBE |
+ NETIF_MSG_LINK);
skb_queue_head_init(&ks->txq);
@@ -1544,7 +1520,6 @@ static int ks8851_probe(struct spi_device *spi)
netif_carrier_off(ks->netdev);
netdev->if_port = IF_PORT_100BASET;
netdev->netdev_ops = &ks8851_netdev_ops;
- netdev->irq = spi->irq;
/* issue a global soft reset to reset the device. */
ks8851_soft_reset(ks, GRR_GSR);
@@ -1586,12 +1561,9 @@ static int ks8851_probe(struct spi_device *spi)
return ret;
}
-static int ks8851_remove(struct spi_device *spi)
+static int ks8851_remove_common(struct device *dev)
{
- struct device *dev = &spi->dev;
- struct ks8851_net *priv;
-
- priv = dev_get_drvdata(dev);
+ struct ks8851_net *priv = dev_get_drvdata(dev);
if (netif_msg_drv(priv))
dev_info(dev, "remove\n");
@@ -1605,6 +1577,44 @@ static int ks8851_remove(struct spi_device *spi)
return 0;
}
+static int ks8851_probe(struct spi_device *spi)
+{
+ struct device *dev = &spi->dev;
+ struct ks8851_net_spi *kss;
+ struct net_device *netdev;
+ struct ks8851_net *ks;
+
+ netdev = devm_alloc_etherdev(dev, sizeof(struct ks8851_net_spi));
+ if (!netdev)
+ return -ENOMEM;
+
+ spi->bits_per_word = 8;
+
+ ks = netdev_priv(netdev);
+ kss = to_ks8851_spi(ks);
+
+ kss->spidev = spi;
+ mutex_init(&kss->lock);
+ INIT_WORK(&kss->tx_work, ks8851_tx_work);
+
+ /* initialise pre-made spi transfer messages */
+ spi_message_init(&kss->spi_msg1);
+ spi_message_add_tail(&kss->spi_xfer1, &kss->spi_msg1);
+
+ spi_message_init(&kss->spi_msg2);
+ spi_message_add_tail(&kss->spi_xfer2[0], &kss->spi_msg2);
+ spi_message_add_tail(&kss->spi_xfer2[1], &kss->spi_msg2);
+
+ netdev->irq = spi->irq;
+
+ return ks8851_probe_common(netdev, dev, msg_enable);
+}
+
+static int ks8851_remove(struct spi_device *spi)
+{
+ return ks8851_remove_common(&spi->dev);
+}
+
static const struct of_device_id ks8851_match_table[] = {
{ .compatible = "micrel,ks8851" },
{ }
--
2.25.1
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