[PATCH v6 1/6] dt-bindings: clock: Add spread spectrum definition

Peng Fan (OSS)
2025-11-28T03:14:33Z

Per dt-schema, the modulation methods are: down-spread(3), up-spread(2),
center-spread(1), no-spread(0). So define them in dt-bindings to avoid
write the magic number in device tree.

Reviewed-by: Brian Masney <bmasney@redhat.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
include/dt-bindings/clock/clock.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/include/dt-bindings/clock/clock.h b/include/dt-bindings/clock/clock.h
new file mode 100644
index 0000000000000000000000000000000000000000..155e2653a120bf10747bd7f4d47f25e0493e0464
--- /dev/null
+++ b/include/dt-bindings/clock/clock.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/*
+ * Copyright 2025 NXP
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_H
+#define __DT_BINDINGS_CLOCK_H
+
+#define CLK_SSC_NO_SPREAD 0
+#define CLK_SSC_CENTER_SPREAD 1
+#define CLK_SSC_UP_SPREAD 2
+#define CLK_SSC_DOWN_SPREAD 3
+
+#endif /* __DT_BINDINGS_CLOCK_H */

--
2.37.1