[PATCH 1/2] dt-bindings: hwlock: Update OMAP HwSpinlock binding for AM64x SoCs

[Suman Anna]

Hi Rob,

On 2/9/21 11:00 AM, Rob Herring wrote:
> On Mon, Jan 25, 2021 at 05:56:52PM -0600, Suman Anna wrote:
>> Update the existing OMAP HwSpinlock binding to include the info for
>> AM64x SoCs. There are some minor IP integration differences between
>> the AM64x SoCs and the previous AM65x and J721E SoC families. A new
>> example is also added showcasing the difference in the IP's presence
>> on the interconnect.
>>
>> Signed-off-by: Suman Anna <s-anna at ti.com>
>> ---
>>  .../bindings/hwlock/ti,omap-hwspinlock.yaml   | 26 +++++++++++++++++++
>>  1 file changed, 26 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
>> index ac35491a6f65..ac146c0d628f 100644
>> --- a/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
>> +++ b/Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml
>> @@ -14,6 +14,7 @@ properties:
>>      enum:
>>        - ti,omap4-hwspinlock  # for OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
>>        - ti,am654-hwspinlock  # for K3 AM65x, J721E and J7200 SoCs
>> +      - ti,am64-hwspinlock   # for K3 AM64x SoCs
>>  
>>    reg:
>>      maxItems: 1
>> @@ -74,3 +75,28 @@ examples:
>>              };
>>          };
>>      };
>> +
>> +  - |
>> +    / {
>> +        /* K3 AM64x SoCs */
>> +        model = "Texas Instruments K3 AM642 SoC";
>> +        compatible = "ti,am642-evm", "ti,am642";
>> +        #address-cells = <2>;
>> +        #size-cells = <2>;
>> +
>> +        bus at f4000 {
>> +            compatible = "simple-bus";
>> +            #address-cells = <2>;
>> +            #size-cells = <2>;
>> +            ranges = <0x00 0x000f4000 0x00 0x000f4000 0x00 0x000002d0>, /* PINCTRL */
>> +                     <0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */
>> +                     <0x00 0x0f000000 0x00 0x0f000000 0x00 0x00c44200>, /* Second peripheral window */
>> +                     <0x00 0x20000000 0x00 0x20000000 0x00 0x0a008000>; /* Third peripheral window */
>> +
>> +            spinlock at 2a000000 {
> 
> Why are you doing the whole hierarchy here? Don't do that.

I added it because it's integration is slightly different and to help our
downstream consumers.

> 
> In any case, a new compatible doesn't warrant a whole new example, so 
> drop the example.

Yeah ok, will drop the example.

regards
Suman

> 
>> +                compatible = "ti,am64-hwspinlock";
>> +                reg = <0x00 0x2a000000 0x00 0x1000>;
>> +                #hwlock-cells = <1>;
>> +            };
>> +        };
>> +    };
>> -- 
>> 2.29.2
>>