[PATCH v6 2/5] dt-bindings: pinctrl: Add support for Amlogic A4 SoCs

[Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@kernel.org>]

From: Xianwei Zhao <xianwei.zhao@amlogic.com>

Add the dt-bindings for Amlogic A4 pin controller, and add a new
dt-binding header file which document the GPIO bank names of all
Amlogic subsequent SoCs.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
---
 .../bindings/pinctrl/amlogic,meson-pinctrl-a4.yaml | 80 ++++++++++++++++++++++
 include/dt-bindings/gpio/amlogic-gpio.h            | 45 ++++++++++++
 2 files changed, 125 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a4.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a4.yaml
new file mode 100644
index 000000000000..db1d58c29478
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a4.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/amlogic,meson-pinctrl-a4.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A4 pinmux controller
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+  - Xianwei Zhao <xianwei.zhao@amlogic.com>
+
+allOf:
+  - $ref: amlogic,meson-pinctrl-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - amlogic,a4-aobus-pinctrl
+      - amlogic,a4-periphs-pinctrl
+
+required:
+  - compatible
+
+patternProperties:
+  "^bank@[0-9a-f]+$":
+    $ref: amlogic,meson-pinctrl-common.yaml#/$defs/meson-gpio
+
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        maxItems: 2
+
+      reg-names:
+        items:
+          - const: mux
+          - const: gpio
+
+      "#gpio-cells":
+        const: 3
+
+      gpio-line-names:
+        minItems: 8
+        maxItems: 73
+
+unevaluatedProperties:
+  type: object
+  $ref: amlogic,meson-pinctrl-common.yaml#/$defs/meson-pins
+
+examples:
+  - |
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      periphs_pinctrl: pinctrl@4000 {
+        compatible = "amlogic,a4-periphs-pinctrl";
+        #address-cells = <2>;
+        #size-cells = <2>;
+        ranges = <0x0 0x0 0x0 0x4000 0x0 0x02e0>;
+
+        bank@0 {
+          reg = <0x0 0x0 0x0 0x0050>,
+                <0x0 0xc0 0x0 0x0220>;
+          reg-names = "mux", "gpio";
+          gpio-controller;
+          #gpio-cells = <3>;
+          gpio-ranges = <&periphs_pinctrl 0 0 73>;
+        };
+
+        cec_ao_a_h_pins: cec_ao_a_h {
+          mux {
+            groups = "cec_ao_a_h";
+            function = "cec_ao_a_h";
+            bias-disable;
+          };
+        };
+      };
+    };
diff --git a/include/dt-bindings/gpio/amlogic-gpio.h b/include/dt-bindings/gpio/amlogic-gpio.h
new file mode 100644
index 000000000000..5bfdb39eeda8
--- /dev/null
+++ b/include/dt-bindings/gpio/amlogic-gpio.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (c) 2024 Amlogic, Inc. All rights reserved.
+ * Author: Xianwei Zhao <xianwei.zhao@amlogic.com>
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_GPIO_H
+#define _DT_BINDINGS_AMLOGIC_GPIO_H
+
+#include <dt-bindings/gpio/gpio.h>
+
+/* Normal GPIO bank */
+#define AMLOGIC_GPIO_A		0
+#define AMLOGIC_GPIO_B		1
+#define AMLOGIC_GPIO_C		2
+#define AMLOGIC_GPIO_D		3
+#define AMLOGIC_GPIO_E		4
+#define AMLOGIC_GPIO_F		5
+#define AMLOGIC_GPIO_G		6
+#define AMLOGIC_GPIO_H		7
+#define AMLOGIC_GPIO_I		8
+#define AMLOGIC_GPIO_J		9
+#define AMLOGIC_GPIO_K		10
+#define AMLOGIC_GPIO_L		11
+#define AMLOGIC_GPIO_M		12
+#define AMLOGIC_GPIO_N		13
+#define AMLOGIC_GPIO_O		14
+#define AMLOGIC_GPIO_P		15
+#define AMLOGIC_GPIO_Q		16
+#define AMLOGIC_GPIO_R		17
+#define AMLOGIC_GPIO_S		18
+#define AMLOGIC_GPIO_T		19
+#define AMLOGIC_GPIO_U		20
+#define AMLOGIC_GPIO_V		21
+#define AMLOGIC_GPIO_W		22
+#define AMLOGIC_GPIO_X		23
+#define AMLOGIC_GPIO_Y		24
+#define AMLOGIC_GPIO_Z		25
+/* Special GPIO bank */
+#define AMLOGIC_GPIO_DV		26
+#define AMLOGIC_GPIO_AO		27
+#define AMLOGIC_GPIO_CC		28
+#define AMLOGIC_GPIO_TEST_N	29
+
+#endif /* _DT_BINDINGS_AMLOGIC_GPIO_H */

-- 
2.37.1