On Tuesday, October 06, 2015 06:36:27 PM Marc Zyngier wrote:
> As the only user of drivers/acpi/gsi.c is now using acpi_set_irq_model
> to set acpi_gsi_descriptor_populate to something meaningful, we can
> always rely on that information to be present (its absence is an error),
> and guarantee that new interrupt controllers will use this API.
>
> Take this opportunity to cleanup acpi_register_gsi.
>
> Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
Acked-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
> ---
> drivers/acpi/gsi.c | 30 ++++++++++--------------------
> 1 file changed, 10 insertions(+), 20 deletions(-)
>
> diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
> index 202a8fe..fa4585a 100644
> --- a/drivers/acpi/gsi.c
> +++ b/drivers/acpi/gsi.c
> @@ -73,29 +73,19 @@ EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
> int acpi_register_gsi(struct device *dev, u32 gsi, int trigger,
> int polarity)
> {
> - unsigned int irq;
> - unsigned int irq_type = acpi_gsi_get_irq_type(trigger, polarity);
> + struct irq_fwspec fwspec;
>
> - if (acpi_gsi_domain_id) {
> - struct irq_fwspec fwspec;
> -
> - fwspec.fwnode = acpi_gsi_domain_id;
> - fwspec.param[0] = gsi;
> - fwspec.param[1] = irq_type;
> - fwspec.param_count = 2;
> -
> - return irq_create_fwspec_mapping(&fwspec);
> - } else {
> - irq = irq_create_mapping(NULL, gsi);
> - if (!irq)
> - return -EINVAL;
> + if (WARN_ON(!acpi_gsi_domain_id)) {
> + pr_warn("GSI: No registered irqchip, giving up\n");
> + return -EINVAL;
> }
>
> - /* Set irq type if specified and different than the current one */
> - if (irq_type != IRQ_TYPE_NONE &&
> - irq_type != irq_get_trigger_type(irq))
> - irq_set_irq_type(irq, irq_type);
> - return irq;
> + fwspec.fwnode = acpi_gsi_domain_id;
> + fwspec.param[0] = gsi;
> + fwspec.param[1] = acpi_gsi_get_irq_type(trigger, polarity);
> + fwspec.param_count = 2;
> +
> + return irq_create_fwspec_mapping(&fwspec);
> }
> EXPORT_SYMBOL_GPL(acpi_register_gsi);
--
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