[PATCH v5 08/13] gpio: mxc: use local dev variable

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@xxxxxxx>

Introduce a local 'struct device *dev' variable to replace repeated
'&pdev->dev' dereferences throughout mxc_gpio_probe(), improving
readability.

No functional change.

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---
 drivers/gpio/gpio-mxc.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 70fa139338c9..5ae9cdee6424 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -449,17 +449,18 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 {
 	struct gpio_generic_chip_config config = { };
 	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
 	struct mxc_gpio_port *port;
 	int irq_count;
 	int irq_base;
 	int err;
 
-	port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL);
+	port = devm_kzalloc(dev, sizeof(*port), GFP_KERNEL);
 	if (!port)
 		return -ENOMEM;
 
-	port->dev = &pdev->dev;
-	port->hwdata = device_get_match_data(&pdev->dev);
+	port->dev = dev;
+	port->hwdata = device_get_match_data(dev);
 
 	port->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(port->base))
@@ -480,13 +481,13 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 		return port->irq;
 
 	/* the controller clock is optional */
-	port->clk = devm_clk_get_optional_enabled(&pdev->dev, NULL);
+	port->clk = devm_clk_get_optional_enabled(dev, NULL);
 	if (IS_ERR(port->clk))
 		return PTR_ERR(port->clk);
 
-	pm_runtime_get_noresume(&pdev->dev);
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_noresume(dev);
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
 
 	/* disable the interrupt and clear the status */
 	writel(0, port->base + GPIO_IMR);
@@ -503,7 +504,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 	} else
 		port->mx_irq_handler = mx3_gpio_irq_handler;
 
-	config.dev = &pdev->dev;
+	config.dev = dev;
 	config.sz = 4;
 	config.dat = port->base + GPIO_PSR;
 	config.set = port->base + GPIO_DR;
@@ -526,24 +527,24 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 	else /* silence boot time warning */
 		port->gen_gc.gc.base = -1;
 
-	err = devm_gpiochip_add_data(&pdev->dev, &port->gen_gc.gc, port);
+	err = devm_gpiochip_add_data(dev, &port->gen_gc.gc, port);
 	if (err)
 		goto out_bgio;
 
-	irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0, 32, numa_node_id());
+	irq_base = devm_irq_alloc_descs(dev, -1, 0, 32, numa_node_id());
 	if (irq_base < 0) {
 		err = irq_base;
 		goto out_bgio;
 	}
 
-	port->domain = irq_domain_create_legacy(dev_fwnode(&pdev->dev), 32, irq_base, 0,
+	port->domain = irq_domain_create_legacy(dev_fwnode(dev), 32, irq_base, 0,
 						&irq_domain_simple_ops, NULL);
 	if (!port->domain) {
 		err = -ENODEV;
 		goto out_bgio;
 	}
 
-	irq_domain_set_pm_device(port->domain, &pdev->dev);
+	irq_domain_set_pm_device(port->domain, dev);
 
 	/* gpio-mxc can be a generic irq chip */
 	err = mxc_gpio_init_gc(port, irq_base);
@@ -555,16 +556,16 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 	mxc_update_irq_chained_handler(port, true);
 
 	platform_set_drvdata(pdev, port);
-	pm_runtime_put_autosuspend(&pdev->dev);
+	pm_runtime_put_autosuspend(dev);
 
 	return 0;
 
 out_irqdomain_remove:
 	irq_domain_remove(port->domain);
 out_bgio:
-	pm_runtime_disable(&pdev->dev);
-	pm_runtime_put_noidle(&pdev->dev);
-	dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, err);
+	pm_runtime_disable(dev);
+	pm_runtime_put_noidle(dev);
+	dev_info(dev, "%s failed with errno %d\n", __func__, err);
 	return err;
 }
 

-- 
2.51.0