[PATCH v4 1/2] dt-bindings: timer: Add NXP System Timer Module

[Daniel Lezcano]

On 03/04/2025 17:21, Daniel Lezcano wrote:
> On 03/04/2025 08:33, Ghennadi Procopciuc wrote:
>> On 4/2/2025 12:07 PM, Daniel Lezcano wrote:
>> [ ... ]
>>> +examples:
>>> +  - |
>>> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
>>> +
>>> +    timer at 4011c000 {
>>> +        compatible = "nxp,s32g2-stm";
>>> +        reg = <0x4011c000 0x3000>;
>>> +        interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
>>> +        clocks = <&clks 0x3b>;
>>> +    };
>>
>> The S32G reference manual specifies two clocks for the STM module: one
>> for the registers and another for the counter itself. Shouldn't both
>> clocks be represented in the bindings?
> 
> AFAICS, there are two clocks as described in the documentation for the 
> s32g2 page 843, section 23.7.3 Timer modules.
> 
> The module and the register clock are fed by the XBAR_DIV3_CLK which is 
> an system clock always-on.
> 
> page 1994, 40.5.4 Clocking, the documentation says: "This module has no 
> clocking considerations."
> 
>  From my understanding, we should not describe the XBAR_DIV3_CLK as it 
> is a system clock.

Can you clarify for the STM if you still want to change the binding ?


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