ARM64: dts: meson: add comments with the GPIO for the PHY interrupts

Currently one has to look/calculate the GPIO for the PHY interrupts
manually. Add a comment for the existing PHY interrupt lines to make it
easier to find out which GPIO is used.
This is done using the following calculation:
- number of GPIO AO pins (14 on GXBB: GPIOAO_0..13)
- add the offset of the pin which is used for the interrupt (for example
  GPIOZ_15 = 15 on Odroid-C2)

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-By: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

4 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
index 4a4251001bfd..011e8e08e429 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -169,6 +169,7 @@
                         /* Realtek RTL8211F (0x001cc916) */
                         reg = <0>;
                         interrupt-parent = <&gpio_intc>;
+                        /* MAC_INTR on GPIOZ_15 */
                         interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
                 };
         };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index d6d3af5eaf55..ee4ada61c59c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -174,8 +174,10 @@
                 #size-cells = <0>;
 
                 eth_phy0: ethernet-phy@0 {
+                        /* Realtek RTL8211F (0x001cc916) */
                         reg = <0>;
                         interrupt-parent = <&gpio_intc>;
+                        /* MAC_INTR on GPIOZ_15 */
                         interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
                         eee-broken-1000t;
                 };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
index 9bf16bb7c491..09f34f7ef084 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p200.dts
@@ -118,6 +118,7 @@
                         /* Micrel KSZ9031 (0x00221620) */
                         reg = <3>;
                         interrupt-parent = <&gpio_intc>;
+                        /* MAC_INTR on GPIOZ_15 */
                         interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
                 };
         };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
index 66c6da7e112c..9847fce443a8 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-q200.dts
@@ -111,6 +111,7 @@
                 reg = <0>;
                 max-speed = <1000>;
                 interrupt-parent = <&gpio_intc>;
+                /* MAC_INTR on GPIOH_3 */
                 interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
         };
 };