gpio: aspeed: Always register the irqchip

The driver was implemented in a way that made the irqchip optional, if a
irq was not present in the device tree. However, all of the device trees
have always had an irq, so the optional-ness has never been used.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index a94da80..129f6a6 100644 (file)
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1137,8 +1137,9 @@ MODULE_DEVICE_TABLE(of, aspeed_gpio_of_table);
 static int __init aspeed_gpio_probe(struct platform_device *pdev)
 {
        const struct of_device_id *gpio_id;
+       struct gpio_irq_chip *girq;
        struct aspeed_gpio *gpio;
-       int rc, i, banks, err;
+       int rc, irq, i, banks, err;
        u32 ngpio;
 
        gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);
@@ -1201,31 +1202,27 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
                aspeed_gpio_change_cmd_source(gpio, bank, 3, GPIO_CMDSRC_ARM);
        }
 
-       /* Optionally set up an irqchip if there is an IRQ */
-       rc = platform_get_irq(pdev, 0);
-       if (rc > 0) {
-               struct gpio_irq_chip *girq;
-
-               gpio->irq = rc;
-               girq = &gpio->chip.irq;
-               girq->chip = &gpio->irqc;
-               girq->chip->name = dev_name(&pdev->dev);
-               girq->chip->irq_ack = aspeed_gpio_irq_ack;
-               girq->chip->irq_mask = aspeed_gpio_irq_mask;
-               girq->chip->irq_unmask = aspeed_gpio_irq_unmask;
-               girq->chip->irq_set_type = aspeed_gpio_set_type;
-               girq->parent_handler = aspeed_gpio_irq_handler;
-               girq->num_parents = 1;
-               girq->parents = devm_kcalloc(&pdev->dev, 1,
-                                            sizeof(*girq->parents),
-                                            GFP_KERNEL);
-               if (!girq->parents)
-                       return -ENOMEM;
-               girq->parents[0] = gpio->irq;
-               girq->default_type = IRQ_TYPE_NONE;
-               girq->handler = handle_bad_irq;
-               girq->init_valid_mask = aspeed_init_irq_valid_mask;
-       }
+       /* Set up an irqchip */
+       irq = platform_get_irq(pdev, 0);
+       if (irq < 0)
+               return irq;
+       gpio->irq = irq;
+       girq = &gpio->chip.irq;
+       girq->chip = &gpio->irqc;
+       girq->chip->name = dev_name(&pdev->dev);
+       girq->chip->irq_ack = aspeed_gpio_irq_ack;
+       girq->chip->irq_mask = aspeed_gpio_irq_mask;
+       girq->chip->irq_unmask = aspeed_gpio_irq_unmask;
+       girq->chip->irq_set_type = aspeed_gpio_set_type;
+       girq->parent_handler = aspeed_gpio_irq_handler;
+       girq->num_parents = 1;
+       girq->parents = devm_kcalloc(&pdev->dev, 1, sizeof(*girq->parents), GFP_KERNEL);
+       if (!girq->parents)
+               return -ENOMEM;
+       girq->parents[0] = gpio->irq;
+       girq->default_type = IRQ_TYPE_NONE;
+       girq->handler = handle_bad_irq;
+       girq->init_valid_mask = aspeed_init_irq_valid_mask;
 
        gpio->offset_timer =
                devm_kzalloc(&pdev->dev, gpio->chip.ngpio, GFP_KERNEL);