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Date:   Wed, 1 Jul 2020 15:01:27 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...com>
To:     <hugues.fruchet@...com>, <mchehab@...nel.org>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
        <robh+dt@...nel.org>
CC:     <linux-media@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <vincent.guittot@...aro.org>,
        <valentin.schneider@....com>, <rjw@...ysocki.net>,
        <devicetree@...r.kernel.org>,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v7 1/3] dt-bindings: media: stm32-dcmi: Add DCMI min frequency property

Document st,stm32-dcmi-min-frequency property which is used to
request CPUs minimum frequency when streaming frames.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
---
 Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
index 3fe778cb5cc3..05ca85a2411a 100644
--- a/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
+++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml
@@ -44,6 +44,13 @@ properties:
       bindings defined in
       Documentation/devicetree/bindings/media/video-interfaces.txt.
 
+  st,stm32-dcmi-min-frequency:
+    description: DCMI minimum CPUs frequency requirement (in KHz).
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - minimum: 0
+      - default: 0
+
 required:
   - compatible
   - reg
@@ -71,6 +78,7 @@ examples:
         clock-names = "mclk";
         dmas = <&dmamux1 75 0x400 0x0d>;
         dma-names = "tx";
+        st,stm32-dcmi-min-frequency = <650000>;
 
         port {
              dcmi_0: endpoint {
-- 
2.15.0

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