[PATCH v3 03/21] dt-bindings: Add RZ/G2L PFC bindings

[Paul Barker]

Import bindings for the Port Function Control (PFC) module in the
Renesas RZ/G2L SoC family.

This patch is based on the dt-bindings in Linux v6.5
(commit 52e12027d50affbf60c6c9c64db8017391b0c22e).

Signed-off-by: Paul Barker <paul.barker.ct at bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz at bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
---
v2->v3: No changes.
v1->v2:
  * Added the exact Linux commit we imported from.
  * Add Marek's Reivewed-by.

 include/dt-bindings/pinctrl/rzg2l-pinctrl.h | 23 +++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 include/dt-bindings/pinctrl/rzg2l-pinctrl.h

diff --git a/include/dt-bindings/pinctrl/rzg2l-pinctrl.h b/include/dt-bindings/pinctrl/rzg2l-pinctrl.h
new file mode 100644
index 000000000000..c78ed5e5efb7
--- /dev/null
+++ b/include/dt-bindings/pinctrl/rzg2l-pinctrl.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * This header provides constants for Renesas RZ/G2L family pinctrl bindings.
+ *
+ * Copyright (C) 2021 Renesas Electronics Corp.
+ *
+ */
+
+#ifndef __DT_BINDINGS_RZG2L_PINCTRL_H
+#define __DT_BINDINGS_RZG2L_PINCTRL_H
+
+#define RZG2L_PINS_PER_PORT	8
+
+/*
+ * Create the pin index from its bank and position numbers and store in
+ * the upper 16 bits the alternate function identifier
+ */
+#define RZG2L_PORT_PINMUX(b, p, f)	((b) * RZG2L_PINS_PER_PORT + (p) | ((f) << 16))
+
+/* Convert a port and pin label to its global pin index */
+#define RZG2L_GPIO(port, pin)	((port) * RZG2L_PINS_PER_PORT + (pin))
+
+#endif /* __DT_BINDINGS_RZG2L_PINCTRL_H */
-- 
2.39.2