dt-bindings: pinctrl: renesas: Document RZ/G3E SoC

Add documentation for the pin controller found on the Renesas RZ/G3E
(R9A09G047) SoC. The RZ/G3E PFC is similar to the RZ/V2H SoC but has more
pins(P00-PS3).

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241216195325.164212-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Author: bijudas

Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml

@@ -26,6 +26,7 @@ properties:
               - renesas,r9a07g043-pinctrl # RZ/G2UL{Type-1,Type-2} and RZ/Five
               - renesas,r9a07g044-pinctrl # RZ/G2{L,LC}
               - renesas,r9a08g045-pinctrl # RZ/G3S
+              - renesas,r9a09g047-pinctrl # RZ/G3E
               - renesas,r9a09g057-pinctrl # RZ/V2H(P)
 
       - items:
@@ -125,7 +126,7 @@ additionalProperties:
         drive-push-pull: true
         renesas,output-impedance:
           description:
-            Output impedance for pins on the RZ/V2H(P) SoC. The value provided by this
+            Output impedance for pins on the RZ/{G3E,V2H(P)} SoC. The value provided by this
             property corresponds to register bit values that can be set in the PFC_IOLH_mn
             register, which adjusts the drive strength value and is pin-dependent.
           $ref: /schemas/types.yaml#/definitions/uint32
@@ -142,7 +143,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: renesas,r9a09g057-pinctrl
+            enum:
+              - renesas,r9a09g047-pinctrl
+              - renesas,r9a09g057-pinctrl
     then:
       properties:
         resets:

include/dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h

@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * This header provides constants for Renesas RZ/G3E family pinctrl bindings.
+ *
+ * Copyright (C) 2024 Renesas Electronics Corp.
+ *
+ */
+
+#ifndef __DT_BINDINGS_PINCTRL_RENESAS_R9A09G047_PINCTRL_H__
+#define __DT_BINDINGS_PINCTRL_RENESAS_R9A09G047_PINCTRL_H__
+
+#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
+
+/* RZG3E_Px = Offset address of PFC_P_mn  - 0x20 */
+#define RZG3E_P0	0
+#define RZG3E_P1	1
+#define RZG3E_P2	2
+#define RZG3E_P3	3
+#define RZG3E_P4	4
+#define RZG3E_P5	5
+#define RZG3E_P6	6
+#define RZG3E_P7	7
+#define RZG3E_P8	8
+#define RZG3E_PA	10
+#define RZG3E_PB	11
+#define RZG3E_PC	12
+#define RZG3E_PD	13
+#define RZG3E_PE	14
+#define RZG3E_PF	15
+#define RZG3E_PG	16
+#define RZG3E_PH	17
+#define RZG3E_PJ	19
+#define RZG3E_PK	20
+#define RZG3E_PL	21
+#define RZG3E_PM	22
+#define RZG3E_PS	28
+
+#define RZG3E_PORT_PINMUX(b, p, f)	RZG2L_PORT_PINMUX(RZG3E_P##b, p, f)
+#define RZG3E_GPIO(port, pin)		RZG2L_GPIO(RZG3E_P##port, pin)
+
+#endif /* __DT_BINDINGS_PINCTRL_RENESAS_R9A09G047_PINCTRL_H__ */