Messages in this thread | | | Date | Thu, 20 Oct 2016 15:29:29 +0300 | From | Mika Westerberg <> | Subject | Re: [PATCH v2 3/4] ACPI / gpio: Add hogging support |
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On Thu, Oct 20, 2016 at 02:09:30PM +0200, Linus Walleij wrote: > On Thu, Sep 29, 2016 at 3:39 PM, Mika Westerberg > <mika.westerberg@linux.intel.com> wrote: > > > GPIO hogging means that the GPIO controller can "hog" and configure certain > > GPIOs without need for a driver or userspace to do that. This is useful in > > open-connected boards where BIOS cannot possibly know beforehand which > > devices will be connected to the board. > > > > This adds GPIO hogging mechanism to ACPI analogous to Device Tree. > > > > Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> > > Overall nice to have the hogs in ACPI too! > > Again here my comment is to break out device_property() and fwnode_* > accessing code to a file shared between ACPI and OF. > > If it makes sense. > > Because the idea was not to invent those abstractions in order to > just use them with ACPI I hope. > > The problem is that some of the code seems to be ACPI-specific, > so if it doesn't work out, I'm also OK to keep it like this.
Yeah, this one differs between ACPI and DT and I'm not sure if it can be easily generalized using device_property APIs.
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