gpio: phytium: Add irq clear macro and delete redundant code

Add irq clear macro definitions as 0xffffffff to make the
code more standardized. And delete the redundant code about
"is_resuming" variable initialization.

Mainline: Open-Source
Signed-off-by: Cui Fulong <cuifulong2112@phytium.com.cn>
Signed-off-by: Li Yuze <liyuze@phytium.com.cn>
Signed-off-by: Wang Yinfeng <wangyinfeng@phytium.com.cn>

Author: newearth-ss

drivers/gpio/gpio-phytium-core.h

@@ -32,6 +32,7 @@
 #define NGPIO_DEFAULT		8
 #define NGPIO_MAX		32
 #define GPIO_PORT_STRIDE	(GPIO_EXT_PORTB - GPIO_EXT_PORTA)
+#define GPIO_CLEAR_IRQ		0xffffffff
 
 #define PHYTIUM_GPIO_DRIVER_VERSION "1.1.2"
 

drivers/gpio/gpio-phytium-pci.c

@@ -74,7 +74,7 @@ static int phytium_gpio_pci_probe(struct pci_dev *pdev, const struct pci_device_
 	raw_spin_lock_init(&gpio->lock);
 
 	writel(0, gpio->regs + GPIO_INTEN);
-	writel(0xffffffff, gpio->regs + GPIO_PORTA_EOI);
+	writel(GPIO_CLEAR_IRQ, gpio->regs + GPIO_PORTA_EOI);
 
 	gpio->gc.base = -1;
 	gpio->gc.get_direction = phytium_gpio_get_direction;
@@ -90,7 +90,6 @@ static int phytium_gpio_pci_probe(struct pci_dev *pdev, const struct pci_device_
 	girq = &gpio->gc.irq;
 	girq->handler = handle_bad_irq;
 	girq->default_type = IRQ_TYPE_NONE;
-	gpio->is_resuming = 0;
 
 	girq->num_parents = 1;
 	girq->parents = devm_kcalloc(&pdev->dev, girq->num_parents,
@@ -171,7 +170,7 @@ static int phytium_gpio_pci_resume(struct device *dev)
 	writel(gpio->ctx.int_polarity, gpio->regs + GPIO_INT_POLARITY);
 	writel(gpio->ctx.debounce, gpio->regs + GPIO_DEBOUNCE);
 
-	writel(0xffffffff, gpio->regs + GPIO_PORTA_EOI);
+	writel(GPIO_CLEAR_IRQ, gpio->regs + GPIO_PORTA_EOI);
 
 	writel(gpio->ctx.inten, gpio->regs + GPIO_INTEN);
 	gpio->is_resuming = 0;

drivers/gpio/gpio-phytium-platform.c

@@ -93,7 +93,7 @@ static int phytium_gpio_probe(struct platform_device *pdev)
 	raw_spin_lock_init(&gpio->lock);
 
 	writel(0, gpio->regs + GPIO_INTEN);
-	writel(0xffffffff, gpio->regs + GPIO_PORTA_EOI);
+	writel(GPIO_CLEAR_IRQ, gpio->regs + GPIO_PORTA_EOI);
 
 	gpio->gc.base = -1;
 	gpio->gc.get_direction = phytium_gpio_get_direction;
@@ -109,7 +109,6 @@ static int phytium_gpio_probe(struct platform_device *pdev)
 	girq = &gpio->gc.irq;
 	girq->handler = handle_bad_irq;
 	girq->default_type = IRQ_TYPE_NONE;
-	gpio->is_resuming = 0;
 
 	for (irq_count = 0; irq_count < platform_irq_count(pdev); irq_count++) {
 		gpio->irq[irq_count] = -ENXIO;
@@ -187,7 +186,7 @@ static int phytium_gpio_resume(struct device *dev)
 	writel(gpio->ctx.int_polarity, gpio->regs + GPIO_INT_POLARITY);
 	writel(gpio->ctx.debounce, gpio->regs + GPIO_DEBOUNCE);
 
-	writel(0xffffffff, gpio->regs + GPIO_PORTA_EOI);
+	writel(GPIO_CLEAR_IRQ, gpio->regs + GPIO_PORTA_EOI);
 
 	writel(gpio->ctx.inten, gpio->regs + GPIO_INTEN);
 	gpio->is_resuming = 0;