[PATCH net-next v3 5/9] net: sunhme: Switch SBUS to devres

Sean Anderson
2023-03-14T00:37:00Z

The PCI half of this driver was converted in commit 914d9b2711dd ("sunhme:
switch to devres"). Do the same for the SBUS half.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
---

(no changes since v1)

drivers/net/ethernet/sun/sunhme.c | 118 +++++++++---------------------
1 file changed, 35 insertions(+), 83 deletions(-)

diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index acdcae2cb49a..3072578c334a 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -2313,29 +2313,28 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
struct net_device *dev;
int i, qfe_slot = -1;
u8 addr[ETH_ALEN];
- int err = -ENODEV;
+ int err;

sbus_dp = op->dev.parent->of_node;

/* We can match PCI devices too, do not accept those here. */
if (!of_node_name_eq(sbus_dp, "sbus") && !of_node_name_eq(sbus_dp, "sbi"))
- return err;
+ return -ENODEV;

if (is_qfe) {
qp = quattro_sbus_find(op);
if (qp == NULL)
- goto err_out;
+ return -ENODEV;
for (qfe_slot = 0; qfe_slot < 4; qfe_slot++)
if (qp->happy_meals[qfe_slot] == NULL)
break;
if (qfe_slot == 4)
- goto err_out;
+ return -ENODEV;
}

- err = -ENOMEM;
- dev = alloc_etherdev(sizeof(struct happy_meal));
+ dev = devm_alloc_etherdev(&op->dev, sizeof(struct happy_meal));
if (!dev)
- goto err_out;
+ return -ENOMEM;
SET_NETDEV_DEV(dev, &op->dev);

/* If user did not specify a MAC address specifically, use
@@ -2369,46 +2368,45 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)

spin_lock_init(&hp->happy_lock);

- err = -ENODEV;
if (qp != NULL) {
hp->qfe_parent = qp;
hp->qfe_ent = qfe_slot;
qp->happy_meals[qfe_slot] = dev;
}

- hp->gregs = of_ioremap(&op->resource[0], 0,
- GREG_REG_SIZE, "HME Global Regs");
- if (!hp->gregs) {
+ hp->gregs = devm_platform_ioremap_resource(op, 0);
+ if (IS_ERR(hp->gregs)) {
dev_err(&op->dev, "Cannot map global registers.\n");
- goto err_out_free_netdev;
+ err = PTR_ERR(hp->gregs);
+ goto err_out_clear_quattro;
}

- hp->etxregs = of_ioremap(&op->resource[1], 0,
- ETX_REG_SIZE, "HME TX Regs");
- if (!hp->etxregs) {
+ hp->etxregs = devm_platform_ioremap_resource(op, 1);
+ if (IS_ERR(hp->etxregs)) {
dev_err(&op->dev, "Cannot map MAC TX registers.\n");
- goto err_out_iounmap;
+ err = PTR_ERR(hp->etxregs);
+ goto err_out_clear_quattro;
}

- hp->erxregs = of_ioremap(&op->resource[2], 0,
- ERX_REG_SIZE, "HME RX Regs");
- if (!hp->erxregs) {
+ hp->erxregs = devm_platform_ioremap_resource(op, 2);
+ if (IS_ERR(hp->erxregs)) {
dev_err(&op->dev, "Cannot map MAC RX registers.\n");
- goto err_out_iounmap;
+ err = PTR_ERR(hp->erxregs);
+ goto err_out_clear_quattro;
}

- hp->bigmacregs = of_ioremap(&op->resource[3], 0,
- BMAC_REG_SIZE, "HME BIGMAC Regs");
- if (!hp->bigmacregs) {
+ hp->bigmacregs = devm_platform_ioremap_resource(op, 3);
+ if (IS_ERR(hp->bigmacregs)) {
dev_err(&op->dev, "Cannot map BIGMAC registers.\n");
- goto err_out_iounmap;
+ err = PTR_ERR(hp->bigmacregs);
+ goto err_out_clear_quattro;
}

- hp->tcvregs = of_ioremap(&op->resource[4], 0,
- TCVR_REG_SIZE, "HME Tranceiver Regs");
- if (!hp->tcvregs) {
+ hp->tcvregs = devm_platform_ioremap_resource(op, 4);
+ if (IS_ERR(hp->tcvregs)) {
dev_err(&op->dev, "Cannot map TCVR registers.\n");
- goto err_out_iounmap;
+ err = PTR_ERR(hp->tcvregs);
+ goto err_out_clear_quattro;
}

hp->hm_revision = of_getintprop_default(dp, "hm-rev", 0xff);
@@ -2428,13 +2426,12 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
hp->happy_bursts = of_getintprop_default(sbus_dp,
"burst-sizes", 0x00);

- hp->happy_block = dma_alloc_coherent(hp->dma_dev,
- PAGE_SIZE,
- &hp->hblock_dvma,
- GFP_ATOMIC);
- err = -ENOMEM;
- if (!hp->happy_block)
- goto err_out_iounmap;
+ hp->happy_block = dmam_alloc_coherent(&op->dev, PAGE_SIZE,
+ &hp->hblock_dvma, GFP_KERNEL);
+ if (!hp->happy_block) {
+ err = -ENOMEM;
+ goto err_out_clear_quattro;
+ }

/* Force check of the link first time we are brought up. */
hp->linkcheck = 0;
@@ -2472,10 +2469,10 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
happy_meal_set_initial_advertisement(hp);
spin_unlock_irq(&hp->happy_lock);

- err = register_netdev(hp->dev);
+ err = devm_register_netdev(&op->dev, dev);
if (err) {
dev_err(&op->dev, "Cannot register net device, aborting.\n");
- goto err_out_free_coherent;
+ goto err_out_clear_quattro;
}

platform_set_drvdata(op, hp);
@@ -2490,31 +2487,9 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)

return 0;

-err_out_free_coherent:
- dma_free_coherent(hp->dma_dev,
- PAGE_SIZE,
- hp->happy_block,
- hp->hblock_dvma);
-
-err_out_iounmap:
- if (hp->gregs)
- of_iounmap(&op->resource[0], hp->gregs, GREG_REG_SIZE);
- if (hp->etxregs)
- of_iounmap(&op->resource[1], hp->etxregs, ETX_REG_SIZE);
- if (hp->erxregs)
- of_iounmap(&op->resource[2], hp->erxregs, ERX_REG_SIZE);
- if (hp->bigmacregs)
- of_iounmap(&op->resource[3], hp->bigmacregs, BMAC_REG_SIZE);
- if (hp->tcvregs)
- of_iounmap(&op->resource[4], hp->tcvregs, TCVR_REG_SIZE);
-
+err_out_clear_quattro:
if (qp)
qp->happy_meals[qfe_slot] = NULL;
-
-err_out_free_netdev:
- free_netdev(dev);
-
-err_out:
return err;
}
#endif
@@ -2891,28 +2866,6 @@ static int hme_sbus_probe(struct platform_device *op)
return happy_meal_sbus_probe_one(op, is_qfe);
}

-static int hme_sbus_remove(struct platform_device *op)
-{
- struct happy_meal *hp = platform_get_drvdata(op);
- struct net_device *net_dev = hp->dev;
-
- unregister_netdev(net_dev);
-
- of_iounmap(&op->resource[0], hp->gregs, GREG_REG_SIZE);
- of_iounmap(&op->resource[1], hp->etxregs, ETX_REG_SIZE);
- of_iounmap(&op->resource[2], hp->erxregs, ERX_REG_SIZE);
- of_iounmap(&op->resource[3], hp->bigmacregs, BMAC_REG_SIZE);
- of_iounmap(&op->resource[4], hp->tcvregs, TCVR_REG_SIZE);
- dma_free_coherent(hp->dma_dev,
- PAGE_SIZE,
- hp->happy_block,
- hp->hblock_dvma);
-
- free_netdev(net_dev);
-
- return 0;
-}
-
static const struct of_device_id hme_sbus_match[] = {
{
.name = "SUNW,hme",
@@ -2936,7 +2889,6 @@ static struct platform_driver hme_sbus_driver = {
.of_match_table = hme_sbus_match,
},
.probe = hme_sbus_probe,
- .remove = hme_sbus_remove,
};

static int __init happy_meal_sbus_init(void)
--
2.37.1