dt-bindings: pinctrl: Add compatibles for Amlogic C3 SoCs

Add a new compatible name for Amlogic C3 pin controller, and add
a new dt-binding header file which document the detail pin names.
Signed-off-by: Huqiang Qin <huqiang.qin@amlogic.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714122441.3098337-2-huqiang.qin@amlogic.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml

@@ -15,6 +15,7 @@ allOf:
 properties:
   compatible:
     enum:
+      - amlogic,c3-periphs-pinctrl
       - amlogic,meson-a1-periphs-pinctrl
       - amlogic,meson-s4-periphs-pinctrl
 

include/dt-bindings/gpio/amlogic-c3-gpio.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
+ * Author: Huqiang Qin <huqiang.qin@amlogic.com>
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_C3_GPIO_H
+#define _DT_BINDINGS_AMLOGIC_C3_GPIO_H
+
+#define	GPIOE_0		0
+#define	GPIOE_1		1
+#define	GPIOE_2		2
+#define	GPIOE_3		3
+#define	GPIOE_4		4
+
+#define	GPIOB_0		5
+#define	GPIOB_1		6
+#define	GPIOB_2		7
+#define	GPIOB_3		8
+#define	GPIOB_4		9
+#define	GPIOB_5		10
+#define	GPIOB_6		11
+#define	GPIOB_7		12
+#define	GPIOB_8		13
+#define	GPIOB_9		14
+#define	GPIOB_10	15
+#define	GPIOB_11	16
+#define	GPIOB_12	17
+#define	GPIOB_13	18
+#define	GPIOB_14	19
+
+#define	GPIOC_0		20
+#define	GPIOC_1		21
+#define	GPIOC_2		22
+#define	GPIOC_3		23
+#define	GPIOC_4		24
+#define	GPIOC_5		25
+#define	GPIOC_6		26
+
+#define	GPIOX_0		27
+#define	GPIOX_1		28
+#define	GPIOX_2		29
+#define	GPIOX_3		30
+#define	GPIOX_4		31
+#define	GPIOX_5		32
+#define	GPIOX_6		33
+#define	GPIOX_7		34
+#define	GPIOX_8		35
+#define	GPIOX_9		36
+#define	GPIOX_10	37
+#define	GPIOX_11	38
+#define	GPIOX_12	39
+#define	GPIOX_13	40
+
+#define	GPIOD_0		41
+#define	GPIOD_1		42
+#define	GPIOD_2		43
+#define	GPIOD_3		44
+#define	GPIOD_4		45
+#define	GPIOD_5		46
+#define	GPIOD_6		47
+
+#define	GPIOA_0		48
+#define	GPIOA_1		49
+#define	GPIOA_2		50
+#define	GPIOA_3		51
+#define	GPIOA_4		52
+#define	GPIOA_5		53
+
+#define	GPIO_TEST_N	54
+
+#endif /* _DT_BINDINGS_AMLOGIC_C3_GPIO_H */