[PATCH 1/9] dt-bindings: pwm: marvell,pxa: add optional property resets

Alex Elder elder at riscstar.com
Wed Apr 16 04:33:42 PDT 2025


On 4/16/25 12:18 AM, Uwe Kleine-König wrote:
> Hello,
> 
> On Tue, Apr 15, 2025 at 12:28:07PM +0000, Yixun Lan wrote:
>> maybe there are cases that users don't want to issue a reset..
>> so, want to make it optional.. I can think one example that,
>> display controller is up and working from bootloader to linux,
>> reset it will got a flicker picture..
> 
> Agreed. You can just deassert the reset at probe time. That shouldn't
> interfere with a PWM that is already producing an output.

I think you're saying reset can be a required property, to be
harmlessly deasserted at probe time?  Yixun was suggesting it
should not be required, because it might already be deasserted.

Anyway, I don't feel strongly either way.  Maybe the DTS
maintainers can recommend what to do.

					-Alex

> 
>> GPG Key ID AABEFD55
> 
> If you advertise your OpenPGP certificate, I recommend using the long
> id. See for example https://keys.openpgp.org/search?q=AABEFD55.




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