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Message-Id: <20221012062558.732930-2-matej.vasilevski@seznam.cz>
Date:   Wed, 12 Oct 2022 08:25:55 +0200
From:   Matej Vasilevski <matej.vasilevski@...nam.cz>
To:     Pavel Pisa <pisa@....felk.cvut.cz>,
        Ondrej Ille <ondrej.ille@...il.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-can@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org,
        Matej Vasilevski <matej.vasilevski@...nam.cz>
Subject: [PATCH v5 1/4] dt-bindings: can: ctucanfd: add another clock for HW timestamping

Add second clock phandle to specify the timestamping clock.

Signed-off-by: Matej Vasilevski <matej.vasilevski@...nam.cz>
---
 .../bindings/net/can/ctu,ctucanfd.yaml        | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
index 4635cb96fc64..7daee263dcfa 100644
--- a/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
+++ b/Documentation/devicetree/bindings/net/can/ctu,ctucanfd.yaml
@@ -44,9 +44,19 @@ properties:
 
   clocks:
     description: |
-      phandle of reference clock (100 MHz is appropriate
-      for FPGA implementation on Zynq-7000 system).
-    maxItems: 1
+      Phandle of reference clock (100 MHz is appropriate for FPGA
+      implementation on Zynq-7000 system). Optionally add a phandle to
+      the timestamping clock connected to timestamping counter, if used.
+    minItems: 1
+    items:
+      - description: core clock
+      - description: timestamping clock
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: core
+      - const: ts
 
 required:
   - compatible
@@ -61,6 +71,7 @@ examples:
     ctu_can_fd_0: can@...30000 {
       compatible = "ctu,ctucanfd";
       interrupts = <0 30 4>;
-      clocks = <&clkc 15>;
+      clocks = <&clkc 15>, <&clkc 16>;
+      clock-names = "core", "ts";
       reg = <0x43c30000 0x10000>;
     };
-- 
2.25.1

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