[PATCH v2 10/13] platform/x86: i2c-multi-instantiate: Introduce IOAPIC IRQ support

Andy Shevchenko
2018-11-26T15:09:55Z

If ACPI table provides an Interrupt() resource we may consider to use it
instead of GpioInt() one.

Here we leave an error condition, when getting IRQ resource, to the driver
to decide how to proceed, because some drivers may consider IRQ resource
optional.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/i2c-multi-instantiate.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
index 1faecc99e0a6..2110f2e4aa1a 100644
--- a/drivers/platform/x86/i2c-multi-instantiate.c
+++ b/drivers/platform/x86/i2c-multi-instantiate.c
@@ -18,6 +18,7 @@
#define IRQ_RESOURCE_TYPE GENMASK(1, 0)
#define IRQ_RESOURCE_NONE 0
#define IRQ_RESOURCE_GPIO 1
+#define IRQ_RESOURCE_APIC 2

struct i2c_inst_data {
const char *type;
@@ -104,6 +105,14 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
}
board_info.irq = ret;
break;
+ case IRQ_RESOURCE_APIC:
+ ret = platform_get_irq(pdev, inst_data[i].irq_idx);
+ if (ret < 0) {
+ dev_dbg(dev, "Error requesting irq at index %d: %d\n",
+ inst_data[i].irq_idx, ret);
+ }
+ board_info.irq = ret;
+ break;
default:
board_info.irq = 0;
break;
--
2.19.1