linux-kernel - [PATCH v3 6/7] dt-bindings: phy: cadence-torrent: Add binding to specify SSC mode

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Message-ID: <1600280911-9214-7-git-send-email-sjakhade@cadence.com>
Date:   Wed, 16 Sep 2020 20:28:30 +0200
From:   Swapnil Jakhade <sjakhade@...ence.com>
To:     <vkoul@...nel.org>, <kishon@...com>, <robh+dt@...nel.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
CC:     <mparab@...ence.com>, <sjakhade@...ence.com>,
        <yamonkar@...ence.com>, <tomi.valkeinen@...com>, <jsarha@...com>,
        <nsekhar@...com>
Subject: [PATCH v3 6/7] dt-bindings: phy: cadence-torrent: Add binding to specify SSC mode

Add binding to specify Spread Spectrum Clocking mode used.

Signed-off-by: Swapnil Jakhade <sjakhade@...ence.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/phy/phy-cadence-torrent.yaml           |  9 +++++++++
 include/dt-bindings/phy/phy-cadence-torrent.h       | 13 +++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 include/dt-bindings/phy/phy-cadence-torrent.h

diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
index 4071438be2ba..a7ee19d27c19 100644
--- a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
@@ -87,6 +87,15 @@ patternProperties:
         enum: [1, 2, 4]
         default: 4
 
+      cdns,ssc-mode:
+        description:
+          Specifies the Spread Spectrum Clocking mode used. It can be NO_SSC,
+          EXTERNAL_SSC or INTERNAL_SSC.
+          Refer include/dt-bindings/phy/phy-cadence-torrent.h for the constants to be used.
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 1, 2]
+        default: 0
+
       cdns,max-bit-rate:
         description:
           Maximum DisplayPort link bit rate to use, in Mbps
diff --git a/include/dt-bindings/phy/phy-cadence-torrent.h b/include/dt-bindings/phy/phy-cadence-torrent.h
new file mode 100644
index 000000000000..e387b6a95741
--- /dev/null
+++ b/include/dt-bindings/phy/phy-cadence-torrent.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for Cadence Torrent SERDES.
+ */
+
+#ifndef _DT_BINDINGS_TORRENT_SERDES_H
+#define _DT_BINDINGS_TORRENT_SERDES_H
+
+#define TORRENT_SERDES_NO_SSC		0
+#define TORRENT_SERDES_EXTERNAL_SSC	1
+#define TORRENT_SERDES_INTERNAL_SSC	2
+
+#endif /* _DT_BINDINGS_TORRENT_SERDES_H */
-- 
2.26.1