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gpio: em: use a helper variable for &pdev->dev 

Instead of always dereferencing &pdev->dev, just assign a helper local
variable of type struct device * and use it where applicable.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Bartosz Golaszewski 2019-07-11 10:29:36 +02:00
parent 5f9e832c13
commit 66ad66293e
1 changed files with 19 additions and 18 deletions
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37
drivers/gpio/gpio-em.c
View File

@ -272,11 +272,12 @@ static int em_gio_probe(struct platform_device *pdev)
struct resource *io[2], *irq[2];
struct gpio_chip *gpio_chip;
struct irq_chip *irq_chip;
const char *name = dev_name(&pdev->dev);
struct device *dev = &pdev->dev;
const char *name = dev_name(dev);
unsigned int ngpios;
int ret;
p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL);
p = devm_kzalloc(dev, sizeof(*p), GFP_KERNEL);
if (!p)
return -ENOMEM;
@ -290,27 +291,27 @@ static int em_gio_probe(struct platform_device *pdev)
irq[1] = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
if (!io[0] || !io[1] || !irq[0] || !irq[1]) {
dev_err(&pdev->dev, "missing IRQ or IOMEM\n");
dev_err(dev, "missing IRQ or IOMEM\n");
return -EINVAL;
}
p->base0 = devm_ioremap_nocache(&pdev->dev, io[0]->start,
p->base0 = devm_ioremap_nocache(dev, io[0]->start,
resource_size(io[0]));
if (!p->base0)
return -ENOMEM;
p->base1 = devm_ioremap_nocache(&pdev->dev, io[1]->start,
p->base1 = devm_ioremap_nocache(dev, io[1]->start,
resource_size(io[1]));
if (!p->base1)
return -ENOMEM;
if (of_property_read_u32(pdev->dev.of_node, "ngpios", &ngpios)) {
dev_err(&pdev->dev, "Missing ngpios OF property\n");
if (of_property_read_u32(dev->of_node, "ngpios", &ngpios)) {
dev_err(dev, "Missing ngpios OF property\n");
return -EINVAL;
}
gpio_chip = &p->gpio_chip;
gpio_chip->of_node = pdev->dev.of_node;
gpio_chip->of_node = dev->of_node;
gpio_chip->direction_input = em_gio_direction_input;
gpio_chip->get = em_gio_get;
gpio_chip->direction_output = em_gio_direction_output;
@ -319,7 +320,7 @@ static int em_gio_probe(struct platform_device *pdev)
gpio_chip->request = em_gio_request;
gpio_chip->free = em_gio_free;
gpio_chip->label = name;
gpio_chip->parent = &pdev->dev;
gpio_chip->parent = dev;
gpio_chip->owner = THIS_MODULE;
gpio_chip->base = -1;
gpio_chip->ngpio = ngpios;
@ -333,33 +334,33 @@ static int em_gio_probe(struct platform_device *pdev)
irq_chip->irq_release_resources = em_gio_irq_relres;
irq_chip->flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
p->irq_domain = irq_domain_add_simple(pdev->dev.of_node, ngpios, 0,
p->irq_domain = irq_domain_add_simple(dev->of_node, ngpios, 0,
&em_gio_irq_domain_ops, p);
if (!p->irq_domain) {
dev_err(&pdev->dev, "cannot initialize irq domain\n");
dev_err(dev, "cannot initialize irq domain\n");
return -ENXIO;
}
ret = devm_add_action_or_reset(&pdev->dev, em_gio_irq_domain_remove,
ret = devm_add_action_or_reset(dev, em_gio_irq_domain_remove,
p->irq_domain);
if (ret)
return ret;
if (devm_request_irq(&pdev->dev, irq[0]->start,
if (devm_request_irq(dev, irq[0]->start,
em_gio_irq_handler, 0, name, p)) {
dev_err(&pdev->dev, "failed to request low IRQ\n");
dev_err(dev, "failed to request low IRQ\n");
return -ENOENT;
}
if (devm_request_irq(&pdev->dev, irq[1]->start,
if (devm_request_irq(dev, irq[1]->start,
em_gio_irq_handler, 0, name, p)) {
dev_err(&pdev->dev, "failed to request high IRQ\n");
dev_err(dev, "failed to request high IRQ\n");
return -ENOENT;
}
ret = devm_gpiochip_add_data(&pdev->dev, gpio_chip, p);
ret = devm_gpiochip_add_data(dev, gpio_chip, p);
if (ret) {
dev_err(&pdev->dev, "failed to add GPIO controller\n");
dev_err(dev, "failed to add GPIO controller\n");
return ret;
}