linux-kernel - [PATCH 1/2] dt-bindings: clock: imx8m: introduce fsl,protected-clocks property

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Message-Id: <20220815033632.1687854-2-peng.fan@oss.nxp.com>
Date:   Mon, 15 Aug 2022 11:36:31 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     abelvesa@...nel.org, abel.vesa@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-imx@....com, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH 1/2] dt-bindings: clock: imx8m: introduce fsl,protected-clocks property

From: Peng Fan <peng.fan@....com>

i.MX8M Linux run on top of Jailhouse hypervisor, the root cell Linux
should not disable clocks used by inmate. This would also benifit
AMP to avoid Linux disable clocks used by Cortex-M4/M7.

So introduce fsl,protected-clocks for above case.

Signed-off-by: Peng Fan <peng.fan@....com>
---
 Documentation/devicetree/bindings/clock/imx8m-clock.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
index 458c7645ee68..0ec490ff9a09 100644
--- a/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/imx8m-clock.yaml
@@ -39,6 +39,10 @@ properties:
       ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
       for the full list of i.MX8M clock IDs.
 
+  fsl,protected-clocks:
+    description: List of the Protected clock.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
 required:
   - compatible
   - reg
-- 
2.37.1