Re: [LINUX PATCH v2 1/3] clocksource: timer-cadence-ttc: Do not probe TTC device configured as PWM

[Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>]

On 15/11/2023 06:55, Sayyed, Mubin wrote:
>>> +	/*
>>> +	 * If pwm-cells property is present in TTC node,
>>> +	 * it would be treated as PWM device.
>>> +	 */
>>> +	if (of_property_read_bool(timer, "#pwm-cells"))
>>> +		return -ENODEV;
>>
>> You will introduce dmesg errors, so regressions.
>>
> [Mubin]: I will change it to "return 0" to avoid dmesg errors.

No, because solution is wrong.

> 
>> This does not look right. What you want is to bind one device driver and
>> choose different functionality based on properties.
> [Mubin]:  I am doing it based on earlier discussion related to AXI Timer PWM driver.  It was suggested to use #pwm-cells property for identifying role of device(PWM/clocksource) https://lore.kernel.org/linux-devicetree/20210513021631.GA878860@robh.at.kernel.org/. 

You are mixing bindings with driver. I said here about driver and yes -
you must use pwm-cells to differentiate that. It's obvious.

So again, one driver binding.

Wrap your emails to mailing list discussion style.

Best regards,
Krzysztof