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Message-ID: <20240913082937.444367-3-andrei.stefanescu@oss.nxp.com>
Date: Fri, 13 Sep 2024 11:29:33 +0300
From: Andrei Stefanescu <andrei.stefanescu@....nxp.com>
To: Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chester Lin <chester62515@...il.com>,
	Matthias Brugger <mbrugger@...e.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>
Cc: linux-gpio@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	NXP S32 Linux Team <s32@....com>,
	Andrei Stefanescu <andrei.stefanescu@....nxp.com>
Subject: [PATCH v2 2/4] dt-bindings: gpio: add support for NXP S32G2/S32G3 SoCs

Add support for the GPIO driver of the NXP S32G2/S32G3 SoCs.

Signed-off-by: Phu Luu An <phu.luuan@....com>
Signed-off-by: Larisa Grigore <larisa.grigore@....com>
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@....com>
Signed-off-by: Andrei Stefanescu <andrei.stefanescu@....nxp.com>
---
 .../bindings/gpio/nxp,s32g2-siul2-gpio.yaml   | 106 ++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml

diff --git a/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml b/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml
new file mode 100644
index 000000000000..8be8eb3a971d
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/nxp,s32g2-siul2-gpio.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause
+# Copyright 2024 NXP
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/nxp,gpio-siul2-s32g2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP S32G2 SIUL2 GPIO controller
+
+maintainers:
+  - Ghennadi Procopciuc <Ghennadi.Procopciuc@....com>
+  - Larisa Grigore <larisa.grigore@....com>
+  - Andrei Stefanescu <andrei.stefanescu@....nxp.com>
+
+description:
+  Support for the SIUL2 GPIOs found on the S32G2 and S32G3
+  chips. It includes an IRQ controller for all pins which have
+  an EIRQ associated.
+
+properties:
+  compatible:
+    items:
+      - const: nxp,s32g2-siul2-gpio
+
+  reg:
+    items:
+      - description: PGPDO (output value) registers for SIUL2_0
+      - description: PGPDO (output value) registers for SIUL2_1
+      - description: PGPDI (input value) registers for SIUL2_0
+      - description: PGPDI (input value) registers for SIUL2_1
+      - description: EIRQ (interrupt) configuration registers from SIUL2_1
+      - description: EIRQ IMCR registers for interrupt muxing between pads
+
+  reg-names:
+    items:
+      - const: opads0
+      - const: opads1
+      - const: ipads0
+      - const: ipads1
+      - const: eirqs
+      - const: eirq-imcrs
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  gpio-ranges:
+    minItems: 2
+
+  gpio-reserved-ranges:
+    minItems: 2
+
+patternProperties:
+  "-hog(-[0-9]+)?$":
+    required:
+      - gpio-hog
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - gpio-controller
+  - "#gpio-cells"
+  - gpio-ranges
+  - gpio-reserved-ranges
+  - interrupts
+  - interrupt-controller
+  - "#interrupt-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    gpio: siul2-gpio@...9d700 {
+        compatible = "nxp,s32g2-siul2-gpio";
+        reg = <0x4009d700 0x10>,
+              <0x44011700 0x18>,
+              <0x4009d740 0x10>,
+              <0x44011740 0x18>,
+              <0x44010010 0xb4>,
+              <0x44011078 0x80>;
+        reg-names = "opads0", "opads1", "ipads0",
+                    "ipads1", "eirqs", "eirq-imcrs";
+        gpio-controller;
+        #gpio-cells = <2>;
+                      /* GPIO 0-101 */
+        gpio-ranges = <&pinctrl 0   0   102>,
+                      /* GPIO 112-190 */
+                      <&pinctrl 112 112 79>;
+        gpio-reserved-ranges = <102 10>, <123 21>;
+        interrupts = <GIC_SPI 210 IRQ_TYPE_LEVEL_HIGH>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+    };
-- 
2.45.2


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