ACPI: Rename acpi_gsi_get_irq_type to acpi_dev_get_irq_type and export symbol

acpi_gsi_get_irq_type could be use out of GSI purpose.

Rename and make it available as a resource function.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 27 insertions, 20 deletions

diff --git a/drivers/acpi/gsi.c b/drivers/acpi/gsi.c
index fa4585a6914e..ee9e0f27b2bf 100644
--- a/drivers/acpi/gsi.c
+++ b/drivers/acpi/gsi.c
@@ -17,25 +17,6 @@ enum acpi_irq_model_id acpi_irq_model;
 
 static struct fwnode_handle *acpi_gsi_domain_id;
 
-static unsigned int acpi_gsi_get_irq_type(int trigger, int polarity)
-{
-        switch (polarity) {
-        case ACPI_ACTIVE_LOW:
-                return trigger == ACPI_EDGE_SENSITIVE ?
-                       IRQ_TYPE_EDGE_FALLING :
-                       IRQ_TYPE_LEVEL_LOW;
-        case ACPI_ACTIVE_HIGH:
-                return trigger == ACPI_EDGE_SENSITIVE ?
-                       IRQ_TYPE_EDGE_RISING :
-                       IRQ_TYPE_LEVEL_HIGH;
-        case ACPI_ACTIVE_BOTH:
-                if (trigger == ACPI_EDGE_SENSITIVE)
-                        return IRQ_TYPE_EDGE_BOTH;
-        default:
-                return IRQ_TYPE_NONE;
-        }
-}
-
 /**
  * acpi_gsi_to_irq() - Retrieve the linux irq number for a given GSI
  * @gsi: GSI IRQ number to map
@@ -82,7 +63,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger,
 
         fwspec.fwnode = acpi_gsi_domain_id;
         fwspec.param[0] = gsi;
-        fwspec.param[1] = acpi_gsi_get_irq_type(trigger, polarity);
+        fwspec.param[1] = acpi_dev_get_irq_type(trigger, polarity);
         fwspec.param_count = 2;
 
         return irq_create_fwspec_mapping(&fwspec);
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index cdc5c2599beb..d02fd53042a5 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -23,6 +23,7 @@
 #include <linux/export.h>
 #include <linux/ioport.h>
 #include <linux/slab.h>
+#include <linux/irq.h>
 
 #ifdef CONFIG_X86
 #define valid_IRQ(i) (((i) != 0) && ((i) != 2))
@@ -336,6 +337,31 @@ unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable)
 }
 EXPORT_SYMBOL_GPL(acpi_dev_irq_flags);
 
+/**
+ * acpi_dev_get_irq_type - Determine irq type.
+ * @triggering: Triggering type as provided by ACPI.
+ * @polarity: Interrupt polarity as provided by ACPI.
+ */
+unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
+{
+        switch (polarity) {
+        case ACPI_ACTIVE_LOW:
+                return triggering == ACPI_EDGE_SENSITIVE ?
+                       IRQ_TYPE_EDGE_FALLING :
+                       IRQ_TYPE_LEVEL_LOW;
+        case ACPI_ACTIVE_HIGH:
+                return triggering == ACPI_EDGE_SENSITIVE ?
+                       IRQ_TYPE_EDGE_RISING :
+                       IRQ_TYPE_LEVEL_HIGH;
+        case ACPI_ACTIVE_BOTH:
+                if (triggering == ACPI_EDGE_SENSITIVE)
+                        return IRQ_TYPE_EDGE_BOTH;
+        default:
+                return IRQ_TYPE_NONE;
+        }
+}
+EXPORT_SYMBOL_GPL(acpi_dev_get_irq_type);
+
 static void acpi_dev_irqresource_disabled(struct resource *res, u32 gsi)
 {
         res->start = gsi;