[RFC 3/5] arm: dts: dt-bindings: Add Renesas RZ pinctrl header

[Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>]

Add dt-bindings header for Renesas RZ pincontroller.
The header defines macros for pin description and alternate function
numbers.

Signed-off-by: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
---
 include/dt-bindings/pinctrl/pinctrl-renesas-rz.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-renesas-rz.h

diff --git a/include/dt-bindings/pinctrl/pinctrl-renesas-rz.h b/include/dt-bindings/pinctrl/pinctrl-renesas-rz.h
new file mode 100644
index 0000000..92816d4
--- /dev/null
+++ b/include/dt-bindings/pinctrl/pinctrl-renesas-rz.h
@@ -0,0 +1,19 @@
+/*
+ * Defines macros and constants for Renesas RZ pin controller and muxer
+ */
+
+#ifndef __DT_BINDINGS_PINCTRL_RENESAS_RZ_H
+#define __DT_BINDINGS_PINCTRL_RENESAS_RZ_H
+
+#define RZ_PIN(b, p) b p
+
+#define ALTERNATE_FUNC_1	0
+#define ALTERNATE_FUNC_2	1
+#define ALTERNATE_FUNC_3	2
+#define ALTERNATE_FUNC_4	3
+#define ALTERNATE_FUNC_5	4
+#define ALTERNATE_FUNC_6	5
+#define ALTERNATE_FUNC_7	6
+#define ALTERNATE_FUNC_8	7
+
+#endif
-- 
2.7.4

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