linux-kernel - [PATCH 2/3] dt-bindings: phy: cadence-torrent: Add binding for refclk driver

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Date:   Wed, 10 Mar 2021 16:57:44 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Peter Rosin <peda@...ntia.se>,
        Swapnil Jakhade <sjakhade@...ence.com>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Aswath Govindraju <a-govindraju@...com>,
        Nishanth Menon <nm@...com>, Lokesh Vutla <lokeshvutla@...com>
Subject: [PATCH 2/3] dt-bindings: phy: cadence-torrent: Add binding for refclk driver

Add binding for refclk driver used to route the refclk out of torrent
SERDES.

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/phy/phy-cadence-torrent.yaml     | 20 ++++++++++++++++---
 include/dt-bindings/phy/phy-cadence-torrent.h |  2 ++
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
index e266ade53d87..4608599a31d8 100644
--- a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
@@ -28,13 +28,27 @@ properties:
   '#size-cells':
     const: 0
 
+  '#clock-cells':
+    const: 1
+
   clocks:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
     description:
-      PHY reference clock. Must contain an entry in clock-names.
+      PHY reference clock for 1 item. Must contain an entry in clock-names.
+      Optional Parent to enable output reference clock.
 
   clock-names:
-    const: refclk
+    minItems: 1
+    items:
+      - const: refclk
+      - const: phy_en_refclk
+
+  assigned-clocks:
+    maxItems: 3
+
+  assigned-clock-parents:
+    maxItems: 3
 
   reg:
     minItems: 1
diff --git a/include/dt-bindings/phy/phy-cadence-torrent.h b/include/dt-bindings/phy/phy-cadence-torrent.h
index e387b6a95741..3c92c6192493 100644
--- a/include/dt-bindings/phy/phy-cadence-torrent.h
+++ b/include/dt-bindings/phy/phy-cadence-torrent.h
@@ -10,4 +10,6 @@
 #define TORRENT_SERDES_EXTERNAL_SSC	1
 #define TORRENT_SERDES_INTERNAL_SSC	2
 
+#define CDNS_TORRENT_REFCLK_DRIVER      0
+
 #endif /* _DT_BINDINGS_TORRENT_SERDES_H */
-- 
2.17.1