devicetree: add DT_INST_NUM_IRQS()

Add `DT_INST_NUM_IRQS()` to get the number of interrupt lines of the current `DT_DRV_COMPAT` Signed-off-by: Yong Cong Sin <ycsin@meta.com> Signed-off-by: Yong Cong Sin <yongcong.sin@gmail.com> (cherry picked from commit ee08ebd)
zephyrproject-rtos · Sep 23, 2024 · 331ad99 · 331ad99
1 parent f2ef1c8
commit 331ad99
Show file tree

Hide file tree

Showing 2 changed files with 11 additions and 0 deletions.
diff --git a/include/zephyr/devicetree.h b/include/zephyr/devicetree.h
@@ -4215,6 +4215,14 @@
  */
 #define DT_INST_REG_SIZE(inst) DT_INST_REG_SIZE_BY_IDX(inst, 0)
 
+/**
+ * @brief Get a `DT_DRV_COMPAT`'s number of interrupts
+ *
+ * @param inst instance number
+ * @return number of interrupts
+ */
+#define DT_INST_NUM_IRQS(inst) DT_NUM_IRQS(DT_DRV_INST(inst))
+
 /**
  * @brief Get a `DT_DRV_COMPAT` interrupt level
  *

diff --git a/tests/lib/devicetree/api/src/main.c b/tests/lib/devicetree/api/src/main.c
@@ -741,6 +741,9 @@ ZTEST(devicetree_api, test_irq)
 	/* DT_INST */
 	zassert_equal(DT_NUM_INST_STATUS_OKAY(DT_DRV_COMPAT), 1, "");
 
+	/* DT_INST_NUM_IRQS */
+	zassert_equal(DT_INST_NUM_IRQS(0), 3);
+
 	/* DT_INST_IRQ_HAS_IDX */
 	zassert_equal(DT_INST_IRQ_HAS_IDX(0, 0), 1, "");
 	zassert_equal(DT_INST_IRQ_HAS_IDX(0, 1), 1, "");