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SubjectRe: [PATCH v2 2/6] i2c: acpi: Use available IRQ helper functions
On Tue, May 28, 2019 at 01:30:28PM +0300, Mika Westerberg wrote:
> On Mon, May 27, 2019 at 04:19:28PM +0100, Charles Keepax wrote:
> > static int i2c_acpi_get_info(struct acpi_device *adev,
> > struct i2c_board_info *info,
> > struct i2c_adapter *adapter,
> > acpi_handle *adapter_handle)
> > {
> > struct list_head resource_list;
> > - struct resource_entry *entry;
> > struct i2c_acpi_lookup lookup;
> > + int irq = -ENOENT;
> > int ret;
> >
> > memset(&lookup, 0, sizeof(lookup));
> > @@ -176,16 +187,13 @@ static int i2c_acpi_get_info(struct acpi_device *adev,
> >
> > /* Then fill IRQ number if any */
> > INIT_LIST_HEAD(&resource_list);
> > - ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
> > + ret = acpi_dev_get_resources(adev, &resource_list,
> > + i2c_acpi_add_resource, &irq);
> > if (ret < 0)
> > return -EINVAL;
> >
> > - resource_list_for_each_entry(entry, &resource_list) {
> > - if (resource_type(entry->res) == IORESOURCE_IRQ) {
> > - info->irq = entry->res->start;
> > - break;
> > - }
> > - }
> > + if (irq >= 0)
>
> Since 0 is not valid IRQ, I think this should be written like:
>
> if (irg > 0)
>

Yeah sorry thought IRQs were like GPIOs where 0 is a valid
number, will update the patches.

Thanks,
Charles
> > + info->irq = irq;
> >
> > acpi_dev_free_resource_list(&resource_list);
> >
> > --
> > 2.11.0

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