[PATCH] dt-bindings: mfd: Improve readability for TPS65217 interrupt sources

[Milo Kim]

AC and USB interrupts are related with external power input.
PB interrupt means push button pressed or released event.
Use better human readable definitions.

Signed-off-by: Milo Kim <woogyom.kim at gmail.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 4 ++--
 include/dt-bindings/mfd/tps65217.h        | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index dc561d5..1848d58 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -319,13 +319,13 @@
 	ti,pmic-shutdown-controller;
 
 	charger {
-		interrupts = <TPS65217_IRQ_AC>, <TPS65217_IRQ_USB>;
+		interrupts = <TPS65217_IRQ_AC_POWER>, <TPS65217_IRQ_USB_POWER>;
 		interrupts-names = "AC", "USB";
 		status = "okay";
 	};
 
 	pwrbutton {
-		interrupts = <TPS65217_IRQ_PB>;
+		interrupts = <TPS65217_IRQ_PUSHBUTTON>;
 		status = "okay";
 	};
 
diff --git a/include/dt-bindings/mfd/tps65217.h b/include/dt-bindings/mfd/tps65217.h
index cafb9e6..0293fdd 100644
--- a/include/dt-bindings/mfd/tps65217.h
+++ b/include/dt-bindings/mfd/tps65217.h
@@ -19,8 +19,8 @@
 #ifndef __DT_BINDINGS_TPS65217_H__
 #define __DT_BINDINGS_TPS65217_H__
 
-#define TPS65217_IRQ_USB	0
-#define TPS65217_IRQ_AC		1
-#define TPS65217_IRQ_PB		2
+#define TPS65217_IRQ_USB_POWER		0	/* USB power state change */
+#define TPS65217_IRQ_AC_POWER		1	/* AC power state change */
+#define TPS65217_IRQ_PUSHBUTTON		2	/* Push button state change */
 
 #endif
-- 
2.9.3