ARM64: dts: marvell: armada-3720-db: add gpio expander

A gpio expander is present on the i2c bus on the Armada 3720 DB board. This
patch add it to the device tree.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-db.dts b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
index 86602c907a61..864936acc316 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-db.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-db.dts
@@ -64,6 +64,24 @@
 
 &i2c0 {
         status = "okay";
+
+        gpio_exp: pca9555@22 {
+                compatible = "nxp,pca9555";
+                gpio-controller;
+                #gpio-cells = <2>;
+
+                reg = <0x22>;
+                /*
+                 * IO0_0: PWR_EN_USB2   IO1_0: PWR_EN_VTT
+                 * IO0_1: PWR_EN_USB23  IO1_1: MPCIE_WDISABLE
+                 * IO0_2: PWR_EN_SATA   IO1_2: RGMII_DEV_RSTN
+                 * IO0_3: PWR_EN_PCIE   IO1_3: SGMII_DEV_RSTN
+                 * IO0_4: PWR_EN_SD
+                 * IO0_5: PWR_EN_EMMC
+                 * IO0_6: PWR_EN_RGMII  IO1_6: SATA_USB3.0_SEL
+                 * IO0_7: PWR_EN_SGMII  IO1_7: PWR_MCI_PS
+                 */
+        };
 };
 
 /* CON3 */