The ASpeed kcs-bmc nodes have a "clocks" property which isn't
documented. It looks like all the LPC child devices have the same clock
source and some of the drivers manage their clock. Perhaps it is the
parent device that should have the clock, but it's too late for that.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
index 129e32c4c774..610c79863208 100644
--- a/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
+++ b/Documentation/devicetree/bindings/ipmi/aspeed,ast2400-kcs-bmc.yaml
@@ -40,6 +40,9 @@ properties:
       - description: ODR register
       - description: STR register
 
+  clocks:
+    maxItems: 1
+
   aspeed,lpc-io-reg:
     $ref: /schemas/types.yaml#/definitions/uint32-array
     minItems: 1
-- 
2.47.2

On Thu, 2025-08-07 at 08:28 -0500, Rob Herring (Arm) wrote:
> The ASpeed kcs-bmc nodes have a "clocks" property which isn't
> documented. It looks like all the LPC child devices have the same clock
> source and some of the drivers manage their clock. Perhaps it is the
> parent device that should have the clock, but it's too late for that.
> 
> Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Thanks Rob.

Acked-by: Andrew Jeffery <andrew@codeconstruct.com.au>

On Fri, Aug 08, 2025 at 11:17:29AM +0930, Andrew Jeffery wrote:
> On Thu, 2025-08-07 at 08:28 -0500, Rob Herring (Arm) wrote:
> > The ASpeed kcs-bmc nodes have a "clocks" property which isn't
> > documented. It looks like all the LPC child devices have the same clock
> > source and some of the drivers manage their clock. Perhaps it is the
> > parent device that should have the clock, but it's too late for that.
> > 
> > Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
> 
> Thanks Rob.
> 
> Acked-by: Andrew Jeffery <andrew@codeconstruct.com.au>

Queued for 4.18, I'll add it to the next tree when 4.17-rc1 releases.

Thanks,

-corey