| From | Linus Walleij <> | Date | Thu, 19 Jan 2017 07:38:57 +0100 | Subject | Re: [PATCH 00/13] Ingenic JZ4740 / JZ4780 pinctrl driver |
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On Wed, Jan 18, 2017 at 12:14 AM, Paul Cercueil <paul@crapouillou.net> wrote:
> One problem still unresolved: the pinctrl framework does not allow us to > configure each pin on demand (someone please prove me wrong), when the > various PWM channels are requested or released. For instance, the PWM > channels can be configured from sysfs, which would require all PWM pins > to be configured properly beforehand for the PWM function, eventually > causing conflicts with other platform or board drivers.
Why do you think this?
- Pincontrol handles can be obtained at runtime. - Pincontrol states can be changed at runtime.
The fact that a the handle is retrived by the device core and set to the states named "init" or "default" during boot is just a convenience.
You can have as many and as fine-grained states as you want. They can pertain to just one pin too.
Linus Walleij
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