[PATCH net-next 05/19] net: ethernet: ti: cpsw: use local var dev in probe

Grygorii Strashko
2019-04-23T13:11:42Z

Use local variable struct device *dev in probe to simplify code.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
drivers/net/ethernet/ti/cpsw.c | 65 +++++++++++++++++-----------------
1 file changed, 33 insertions(+), 32 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 13a339c64892..0b8cc4e6d9cd 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -3458,6 +3458,7 @@ static const struct soc_device_attribute cpsw_soc_devices[] = {

static int cpsw_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct clk *clk;
struct cpsw_platform_data *data;
struct net_device *ndev;
@@ -3474,15 +3475,15 @@ static int cpsw_probe(struct platform_device *pdev)
int ret = 0, i, ch;
int irq;

- cpsw = devm_kzalloc(&pdev->dev, sizeof(struct cpsw_common), GFP_KERNEL);
+ cpsw = devm_kzalloc(dev, sizeof(struct cpsw_common), GFP_KERNEL);
if (!cpsw)
return -ENOMEM;

- cpsw->dev = &pdev->dev;
+ cpsw->dev = dev;

ndev = alloc_etherdev_mq(sizeof(struct cpsw_priv), CPSW_MAX_QUEUES);
if (!ndev) {
- dev_err(&pdev->dev, "error allocating net_device\n");
+ dev_err(dev, "error allocating net_device\n");
return -ENOMEM;
}

@@ -3490,31 +3491,31 @@ static int cpsw_probe(struct platform_device *pdev)
priv = netdev_priv(ndev);
priv->cpsw = cpsw;
priv->ndev = ndev;
- priv->dev = &ndev->dev;
+ priv->dev = dev;
priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
cpsw->rx_packet_max = max(rx_packet_max, 128);

- mode = devm_gpiod_get_array_optional(&pdev->dev, "mode", GPIOD_OUT_LOW);
+ mode = devm_gpiod_get_array_optional(dev, "mode", GPIOD_OUT_LOW);
if (IS_ERR(mode)) {
ret = PTR_ERR(mode);
- dev_err(&pdev->dev, "gpio request failed, ret %d\n", ret);
+ dev_err(dev, "gpio request failed, ret %d\n", ret);
goto clean_ndev_ret;
}

/*
* This may be required here for child devices.
*/
- pm_runtime_enable(&pdev->dev);
+ pm_runtime_enable(dev);

/* Select default pin state */
- pinctrl_pm_select_default_state(&pdev->dev);
+ pinctrl_pm_select_default_state(dev);

/* Need to enable clocks with runtime PM api to access module
* registers
*/
- ret = pm_runtime_get_sync(&pdev->dev);
+ ret = pm_runtime_get_sync(dev);
if (ret < 0) {
- pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_put_noidle(dev);
goto clean_runtime_disable_ret;
}

@@ -3528,15 +3529,15 @@ static int cpsw_probe(struct platform_device *pdev)

if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
- dev_info(&pdev->dev, "Detected MACID = %pM\n", priv->mac_addr);
+ dev_info(dev, "Detected MACID = %pM\n", priv->mac_addr);
} else {
eth_random_addr(priv->mac_addr);
- dev_info(&pdev->dev, "Random MACID = %pM\n", priv->mac_addr);
+ dev_info(dev, "Random MACID = %pM\n", priv->mac_addr);
}

memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);

- cpsw->slaves = devm_kcalloc(&pdev->dev,
+ cpsw->slaves = devm_kcalloc(dev,
data->slaves, sizeof(struct cpsw_slave),
GFP_KERNEL);
if (!cpsw->slaves) {
@@ -3549,16 +3550,16 @@ static int cpsw_probe(struct platform_device *pdev)
cpsw->slaves[0].ndev = ndev;
priv->emac_port = 0;

- clk = devm_clk_get(&pdev->dev, "fck");
+ clk = devm_clk_get(dev, "fck");
if (IS_ERR(clk)) {
- dev_err(priv->dev, "fck is not found\n");
+ dev_err(dev, "fck is not found\n");
ret = -ENODEV;
goto clean_dt_ret;
}
cpsw->bus_freq_mhz = clk_get_rate(clk) / 1000000;

ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
+ ss_regs = devm_ioremap_resource(dev, ss_res);
if (IS_ERR(ss_regs)) {
ret = PTR_ERR(ss_regs);
goto clean_dt_ret;
@@ -3568,7 +3569,7 @@ static int cpsw_probe(struct platform_device *pdev)
cpsw->version = readl(&cpsw->regs->id_ver);

res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- cpsw->wr_regs = devm_ioremap_resource(&pdev->dev, res);
+ cpsw->wr_regs = devm_ioremap_resource(dev, res);
if (IS_ERR(cpsw->wr_regs)) {
ret = PTR_ERR(cpsw->wr_regs);
goto clean_dt_ret;
@@ -3606,7 +3607,7 @@ static int cpsw_probe(struct platform_device *pdev)
(u32 __force) ss_res->start + CPSW2_BD_OFFSET;
break;
default:
- dev_err(priv->dev, "unknown version 0x%08x\n", cpsw->version);
+ dev_err(dev, "unknown version 0x%08x\n", cpsw->version);
ret = -ENODEV;
goto clean_dt_ret;
}
@@ -3618,7 +3619,7 @@ static int cpsw_probe(struct platform_device *pdev)
sliver_offset += SLIVER_SIZE;
}

- dma_params.dev = &pdev->dev;
+ dma_params.dev = dev;
dma_params.rxthresh = dma_params.dmaregs + CPDMA_RXTHRESH;
dma_params.rxfree = dma_params.dmaregs + CPDMA_RXFREE;
dma_params.rxhdp = dma_params.txhdp + CPDMA_RXHDP;
@@ -3637,7 +3638,7 @@ static int cpsw_probe(struct platform_device *pdev)

cpsw->dma = cpdma_ctlr_create(&dma_params);
if (!cpsw->dma) {
- dev_err(priv->dev, "error initializing dma\n");
+ dev_err(dev, "error initializing dma\n");
ret = -ENOMEM;
goto clean_dt_ret;
}
@@ -3649,26 +3650,26 @@ static int cpsw_probe(struct platform_device *pdev)
ch = cpsw->quirk_irq ? 0 : 7;
cpsw->txv[0].ch = cpdma_chan_create(cpsw->dma, ch, cpsw_tx_handler, 0);
if (IS_ERR(cpsw->txv[0].ch)) {
- dev_err(priv->dev, "error initializing tx dma channel\n");
+ dev_err(dev, "error initializing tx dma channel\n");
ret = PTR_ERR(cpsw->txv[0].ch);
goto clean_dma_ret;
}

cpsw->rxv[0].ch = cpdma_chan_create(cpsw->dma, 0, cpsw_rx_handler, 1);
if (IS_ERR(cpsw->rxv[0].ch)) {
- dev_err(priv->dev, "error initializing rx dma channel\n");
+ dev_err(dev, "error initializing rx dma channel\n");
ret = PTR_ERR(cpsw->rxv[0].ch);
goto clean_dma_ret;
}

- ale_params.dev = &pdev->dev;
+ ale_params.dev = dev;
ale_params.ale_ageout = ale_ageout;
ale_params.ale_entries = data->ale_entries;
ale_params.ale_ports = CPSW_ALE_PORTS_NUM;

cpsw->ale = cpsw_ale_create(&ale_params);
if (!cpsw->ale) {
- dev_err(priv->dev, "error initializing ale engine\n");
+ dev_err(dev, "error initializing ale engine\n");
ret = -ENODEV;
goto clean_dma_ret;
}
@@ -3681,7 +3682,7 @@ static int cpsw_probe(struct platform_device *pdev)

ndev->irq = platform_get_irq(pdev, 1);
if (ndev->irq < 0) {
- dev_err(priv->dev, "error getting irq resource\n");
+ dev_err(dev, "error getting irq resource\n");
ret = ndev->irq;
goto clean_dma_ret;
}
@@ -3699,10 +3700,10 @@ static int cpsw_probe(struct platform_device *pdev)
cpsw_split_res(cpsw);

/* register the network device */
- SET_NETDEV_DEV(ndev, &pdev->dev);
+ SET_NETDEV_DEV(ndev, dev);
ret = register_netdev(ndev);
if (ret) {
- dev_err(priv->dev, "error registering net device\n");
+ dev_err(dev, "error registering net device\n");
ret = -ENODEV;
goto clean_dma_ret;
}
@@ -3731,10 +3732,10 @@ static int cpsw_probe(struct platform_device *pdev)
}

cpsw->irqs_table[0] = irq;
- ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
- 0, dev_name(&pdev->dev), cpsw);
+ ret = devm_request_irq(dev, irq, cpsw_rx_interrupt,
+ 0, dev_name(dev), cpsw);
if (ret < 0) {
- dev_err(priv->dev, "error attaching irq (%d)\n", ret);
+ dev_err(dev, "error attaching irq (%d)\n", ret);
goto clean_dma_ret;
}

@@ -3746,10 +3747,10 @@ static int cpsw_probe(struct platform_device *pdev)
}

cpsw->irqs_table[1] = irq;
- ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,
+ ret = devm_request_irq(dev, irq, cpsw_tx_interrupt,
0, dev_name(&pdev->dev), cpsw);
if (ret < 0) {
- dev_err(priv->dev, "error attaching irq (%d)\n", ret);
+ dev_err(dev, "error attaching irq (%d)\n", ret);
goto clean_dma_ret;
}

--
2.17.1