linux-kernel - [PATCH v2 3/3] arm64: dts: k3-am654-base-board: Add IRQ line for GPIO expander

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Message-ID: <20191211170414.7026-3-vigneshr@ti.com>
Date:   Wed, 11 Dec 2019 22:34:14 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>
CC:     Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Vignesh Raghavendra <vigneshr@...com>
Subject: [PATCH v2 3/3] arm64: dts: k3-am654-base-board: Add IRQ line for GPIO expander

Add IRQ line for IO expander present on wkup_i2c bus on  AM654 EVM

Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
---
v2:

New patch

 arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 94bec7aa9baf..a634dceaa964 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -85,6 +85,13 @@ AM65X_WKUP_IOPAD(0x0028, PIN_INPUT, 0)  /* (R3) MCU_OSPI0_D7 */
 			AM65X_WKUP_IOPAD(0x002c, PIN_OUTPUT, 0) /* (R4) MCU_OSPI0_CSn0 */
 		>;
 	};
+
+	wkup_pca554_default: wkup_pca554_default {
+		pinctrl-single,pins = <
+			AM65X_WKUP_IOPAD(0x0034, PIN_INPUT, 7) /* (T1) MCU_OSPI1_CLK.WKUP_GPIO0_25 */
+
+		>;
+	};
 };
 
 &main_pmx0 {
@@ -180,6 +187,12 @@ pca9554: gpio@39 {
 		reg = <0x39>;
 		gpio-controller;
 		#gpio-cells = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&wkup_pca554_default>;
+		interrupt-parent = <&wkup_gpio0>;
+		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 	};
 };
 
-- 
2.24.0