[RFC PATCH] ARM: dts: renesas: r9a06g032-rzn1d400-db: use interrupt for Micrel PHYs

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

Make use of the interrupts wired to the Micrel PHYs via the GPIO IRQ
mux.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Works nicely and kinda out-of-the-box for the Micrel PHYs, couldn't get
it to work (reliably?) with the Marvell PHYs on the EB. Leaving this for
later (if ever), no more bandwidth currently. But at least we have an
upstream user for the gpioirqmux now.

RFC because Hervé's patches are still in-flight.

 .../dts/renesas/r9a06g032-rzn1d400-db.dts     | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
index c3786d54992a..d81e92f787a6 100644
--- a/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
+++ b/arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
@@ -186,6 +186,12 @@ fixed-link {
 	};
 };
 
+&gpioirqmux {
+	interrupt-map = <89 &gic GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>, /* pin 147: phy@4 */
+			<91 &gic GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>; /* pin 149: phy@5 */
+	status = "okay";
+};
+
 #if DB_SW2_2 == SW_OFF
 &gpio1 {
 	pinctrl-0 = <&pins_gpio1>;
@@ -194,6 +200,12 @@ &gpio1 {
 };
 #endif
 
+&gpio2 {
+	pinctrl-0 = <&pins_gpio2>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &i2c2 {
 	pinctrl-0 = <&pins_i2c2>;
 	pinctrl-names = "default";
@@ -286,6 +298,13 @@ pins_gpio1: pins-gpio1 {
 	};
 #endif
 
+	pins_gpio2: pins-gpio2 {
+		pinmux = <RZN1_PINMUX(147, RZN1_FUNC_GPIO)>,
+			 <RZN1_PINMUX(149, RZN1_FUNC_GPIO)>;
+		drive-strength = <6>;
+		bias-disable;
+	};
+
 	pins_eth3: pins_eth3 {
 		pinmux = <RZN1_PINMUX(36, RZN1_FUNC_CLK_ETH_MII_RGMII_RMII)>,
 			 <RZN1_PINMUX(37, RZN1_FUNC_CLK_ETH_MII_RGMII_RMII)>,
@@ -355,11 +374,13 @@ mdio {
 		switch0phy4: ethernet-phy@4 {
 			reg = <4>;
 			micrel,led-mode = <1>;
+			interrupts-extended = <&gpio2a 25 IRQ_TYPE_LEVEL_LOW>;
 		};
 
 		switch0phy5: ethernet-phy@5 {
 			reg = <5>;
 			micrel,led-mode = <1>;
+			interrupts-extended = <&gpio2a 27 IRQ_TYPE_LEVEL_LOW>;
 		};
 	};
 };
-- 
2.47.2