gpio: dwapb: Don't use IRQ 0 as valid Linux interrupt (aa90939d) · Commits · 戴 / test

IRQ 0 is not valid in Linux interrupt number space. Refactor the code with this kept in mind. Signed-off-by:

drivers/gpio/gpio-dwapb.c

+7 −7

Original line number	Diff line number	Diff line
		@@ -417,7 +417,7 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
		int i;

		for (i = 0; i < pp->ngpio; i++) {
		if (pp->irq[i] >= 0)
		if (pp->irq[i])
		irq_set_chained_handler_and_data(pp->irq[i],
		dwapb_irq_handler, gpio);
		}
		@@ -538,20 +538,20 @@ static void dwapb_get_irq(struct device dev, struct fwnode_handle fwnode,
		struct dwapb_port_property *pp)
		{
		struct device_node *np = NULL;
		int j;
		int irq = -ENXIO, j;

		if (fwnode_property_read_bool(fwnode, "interrupt-controller"))
		np = to_of_node(fwnode);

		for (j = 0; j < pp->ngpio; j++) {
		pp->irq[j] = -ENXIO;

		if (np)
		pp->irq[j] = of_irq_get(np, j);
		irq = of_irq_get(np, j);
		else if (has_acpi_companion(dev))
		pp->irq[j] = platform_get_irq_optional(to_platform_device(dev), j);
		irq = platform_get_irq_optional(to_platform_device(dev), j);
		if (irq > 0)
		pp->irq[j] = irq;

		if (pp->irq[j] >= 0)
		if (pp->irq[j])
		pp->has_irq = true;
		}