irq/gpio: ixp4xx: Drop boardfile probe path

The boardfiles for IXP4xx have been deleted. Delete all the
quirks and code dealing with that boot path and rely solely on
device tree boot.

Fix some missing static keywords that the kernel test robot
was complaining about while we're at it.

Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

1 files changed, 11 insertions, 29 deletions

diff --git a/drivers/gpio/gpio-ixp4xx.c b/drivers/gpio/gpio-ixp4xx.c
index 76ab9bd7d84b..312309be0287 100644
--- a/drivers/gpio/gpio-ixp4xx.c
+++ b/drivers/gpio/gpio-ixp4xx.c
@@ -14,8 +14,6 @@
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/bitops.h>
-/* Include that go away with DT transition */
-#include <linux/irqchip/irq-ixp4xx.h>
 
 #define IXP4XX_REG_GPOUT	0x00
 #define IXP4XX_REG_GPOE		0x04
@@ -193,6 +191,7 @@ static int ixp4xx_gpio_probe(struct platform_device *pdev)
 	struct resource *res;
 	struct ixp4xx_gpio *g;
 	struct gpio_irq_chip *girq;
+	struct device_node *irq_parent;
 	int ret;
 
 	g = devm_kzalloc(dev, sizeof(*g), GFP_KERNEL);
@@ -205,34 +204,17 @@ static int ixp4xx_gpio_probe(struct platform_device *pdev)
 	if (IS_ERR(g->base))
 		return PTR_ERR(g->base);
 
-	/*
-	 * When we convert to device tree we will simply look up the
-	 * parent irqdomain using irq_find_host(parent) as parent comes
-	 * from IRQCHIP_DECLARE(), then use of_node_to_fwnode() to get
-	 * the fwnode. For now we need this boardfile style code.
-	 */
-	if (np) {
-		struct device_node *irq_parent;
-
-		irq_parent = of_irq_find_parent(np);
-		if (!irq_parent) {
-			dev_err(dev, "no IRQ parent node\n");
-			return -ENODEV;
-		}
-		parent = irq_find_host(irq_parent);
-		if (!parent) {
-			dev_err(dev, "no IRQ parent domain\n");
-			return -ENODEV;
-		}
-		g->fwnode = of_node_to_fwnode(np);
-	} else {
-		parent = ixp4xx_get_irq_domain();
-		g->fwnode = irq_domain_alloc_fwnode(&res->start);
-		if (!g->fwnode) {
-			dev_err(dev, "no domain base\n");
-			return -ENODEV;
-		}
+	irq_parent = of_irq_find_parent(np);
+	if (!irq_parent) {
+		dev_err(dev, "no IRQ parent node\n");
+		return -ENODEV;
+	}
+	parent = irq_find_host(irq_parent);
+	if (!parent) {
+		dev_err(dev, "no IRQ parent domain\n");
+		return -ENODEV;
 	}
+	g->fwnode = of_node_to_fwnode(np);
 
 	/*
 	 * Make sure GPIO 14 and 15 are NOT used as clocks but GPIO on