On Thu, Nov 19, 2020 at 03:23:20PM +0000, Lukasz Luba wrote:

On 10/28/20 3:08 PM, Rob Herring wrote:

quoted

On Mon, Oct 26, 2020 at 04:19:08PM +0800, Hector Yuan wrote:

quoted

From: "Hector.Yuan" <redacted>

Add devicetree documentation for 'mediatek,freq-domain' property specific
to Mediatek CPUs. This property is used to reference the CPUFREQ node
along with the domain id.

Signed-off-by: Hector.Yuan <redacted>
---
  Documentation/devicetree/bindings/arm/cpus.yaml |    6 ++++++
  1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index 1222bf1..e995b26 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml

@@ -255,6 +255,12 @@ properties:
        where voltage is in V, frequency is in MHz.
+  mediatek,freq-domain:
+    $ref: '/schemas/types.yaml#/definitions/phandle-array'
+    description:
+      CPUs supporting freq-domain must set their "mediatek,freq-domain" property
+      with phandle to a cpufreq_hw node followed by the domain id.

This needs to be a common binding shared with SCMI domains.

Would it be accurate to create a new binding file:
Documentation/devicetree/bindings/cpufreq/cpufreq-mediatek-hw.txt
?

Nope, Rob already asked to unify all such bindings and generalise it.
Here is my attempt[1] and this must just use it or help to enhance that
in order to make use of that binding.

-- 
Regards,
Sudeep

[1] https://lore.kernel.org/lkml/20201116181356.804590-1-sudeep.holla@arm.com (local)

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