ARM: dts: s3c2410: use local header for pinctrl register values

The DTS uses hardware register values directly in pin controller pin
configuration. These are not some IDs or other abstraction layer but
raw numbers used in the registers.

These numbers were previously put in the bindings header to avoid code
duplication and to provide some context meaning (name), but they do not
fit the purpose of bindings. It is also quite confusing to use
constants prefixed with Exynos for other SoC, because there is actually
nothing here in common, except the actual value.

Store the constants in a header next to DTS and use them instead of
bindings.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Chanho Park <[e-mail]>
Acked-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/s3c2410-pinctrl.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Samsung S3C2410 DTS pinctrl constants
+ *
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2022 Linaro Ltd
+ * Author: Krzysztof Kozlowski <[e-mail]>
+ */
+
+#ifndef __DTS_ARM_SAMSUNG_S3C2410_PINCTRL_H__
+#define __DTS_ARM_SAMSUNG_S3C2410_PINCTRL_H__
+
+#define S3C2410_PIN_FUNC_INPUT		0
+#define S3C2410_PIN_FUNC_OUTPUT		1
+#define S3C2410_PIN_FUNC_2		2
+#define S3C2410_PIN_FUNC_3		3
+
+#endif /* __DTS_ARM_SAMSUNG_S3C2410_PINCTRL_H__ */

arch/arm/boot/dts/s3c2416-pinctrl.dtsi

···
  * Copyright (c) 2013 Heiko Stuebner <[e-mail]>
  */
 
-#include <dt-bindings/pinctrl/samsung.h>
+#include "s3c2410-pinctrl.h"
 
 &pinctrl_0 {
 	/*
···
 
 	uart0_data: uart0-data-pins {
 		samsung,pins = "gph-0", "gph-1";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart0_fctl: uart0-fctl-pins {
 		samsung,pins = "gph-8", "gph-9";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart1_data: uart1-data-pins {
 		samsung,pins = "gph-2", "gph-3";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart1_fctl: uart1-fctl-pins {
 		samsung,pins = "gph-10", "gph-11";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart2_data: uart2-data-pins {
 		samsung,pins = "gph-4", "gph-5";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart2_fctl: uart2-fctl-pins {
 		samsung,pins = "gph-6", "gph-7";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	uart3_data: uart3-data-pins {
 		samsung,pins = "gph-6", "gph-7";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	extuart_clk: extuart-clk-pins {
 		samsung,pins = "gph-12";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	i2c0_bus: i2c0-bus-pins {
 		samsung,pins = "gpe-14", "gpe-15";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	spi0_bus: spi0-bus-pins {
 		samsung,pins = "gpe-11", "gpe-12", "gpe-13";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd0_clk: sd0-clk-pins {
 		samsung,pins = "gpe-5";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd0_cmd: sd0-cmd-pins {
 		samsung,pins = "gpe-6";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd0_bus1: sd0-bus1-pins {
 		samsung,pins = "gpe-7";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd0_bus4: sd0-bus4-pins {
 		samsung,pins = "gpe-8", "gpe-9", "gpe-10";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd1_cmd: sd1-cmd-pins {
 		samsung,pins = "gpl-8";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd1_clk: sd1-clk-pins {
 		samsung,pins = "gpl-9";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd1_bus1: sd1-bus1-pins {
 		samsung,pins = "gpl-0";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 
 	sd1_bus4: sd1-bus4-pins {
 		samsung,pins = "gpl-1", "gpl-2", "gpl-3";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-function = <S3C2410_PIN_FUNC_2>;
 	};
 };