dt-bindings: gpio: Add a header file for Amlogic Meson S4

Add a new dt-binding header file which documents the detail pin names.
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Link: https://lore.kernel.org/r/20220113031044.2665-3-qianggui.song@amlogic.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

include/dt-bindings/gpio/meson-s4-gpio.h

+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
+/*
+ * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
+ * Author: Qianggui Song <qianggui.song@amlogic.com>
+ */
+
+#ifndef _DT_BINDINGS_MESON_S4_GPIO_H
+#define _DT_BINDINGS_MESON_S4_GPIO_H
+
+#define	GPIOB_0		0
+#define	GPIOB_1		1
+#define	GPIOB_2		2
+#define	GPIOB_3		3
+#define	GPIOB_4		4
+#define	GPIOB_5		5
+#define	GPIOB_6		6
+#define	GPIOB_7		7
+#define	GPIOB_8		8
+#define	GPIOB_9		9
+#define	GPIOB_10	10
+#define	GPIOB_11	11
+#define	GPIOB_12	12
+#define	GPIOB_13	13
+
+#define	GPIOC_0		14
+#define	GPIOC_1		15
+#define	GPIOC_2		16
+#define	GPIOC_3		17
+#define	GPIOC_4		18
+#define	GPIOC_5		19
+#define	GPIOC_6		20
+#define	GPIOC_7		21
+
+#define	GPIOE_0		22
+#define	GPIOE_1		23
+
+#define	GPIOD_0		24
+#define	GPIOD_1		25
+#define	GPIOD_2		26
+#define	GPIOD_3		27
+#define	GPIOD_4		28
+#define	GPIOD_5		29
+#define	GPIOD_6		30
+#define	GPIOD_7		31
+#define	GPIOD_8		32
+#define	GPIOD_9		33
+#define	GPIOD_10	34
+#define	GPIOD_11	35
+
+#define	GPIOH_0		36
+#define	GPIOH_1		37
+#define	GPIOH_2		38
+#define	GPIOH_3		39
+#define	GPIOH_4		40
+#define	GPIOH_5		41
+#define	GPIOH_6		42
+#define	GPIOH_7		43
+#define	GPIOH_8		44
+#define	GPIOH_9		45
+#define	GPIOH_10	46
+#define	GPIOH_11	47
+
+#define	GPIOX_0		48
+#define	GPIOX_1		49
+#define	GPIOX_2		50
+#define	GPIOX_3		51
+#define	GPIOX_4		52
+#define	GPIOX_5		53
+#define	GPIOX_6		54
+#define	GPIOX_7		55
+#define	GPIOX_8		56
+#define	GPIOX_9		57
+#define	GPIOX_10	58
+#define	GPIOX_11	59
+#define	GPIOX_12	60
+#define	GPIOX_13	61
+#define	GPIOX_14	62
+#define	GPIOX_15	63
+#define	GPIOX_16	64
+#define	GPIOX_17	65
+#define	GPIOX_18	66
+#define	GPIOX_19	67
+
+#define	GPIOZ_0		68
+#define	GPIOZ_1		69
+#define	GPIOZ_2		70
+#define	GPIOZ_3		71
+#define	GPIOZ_4		72
+#define	GPIOZ_5		73
+#define	GPIOZ_6		74
+#define	GPIOZ_7		75
+#define	GPIOZ_8		76
+#define	GPIOZ_9		77
+#define	GPIOZ_10	78
+#define	GPIOZ_11	79
+#define	GPIOZ_12	80
+
+#define	GPIO_TEST_N	81
+#endif /* _DT_BINDINGS_MESON_S4_GPIO_H */