Messages in this thread | | | Date | Mon, 1 Mar 2010 19:50:59 +0000 | From | Alan Cox <> | Subject | Re: [PATCH v3 3/3] gpio: add Intel SCH GPIO controller driver |
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On Mon, 01 Mar 2010 13:09:22 -0500 (EST) Len Brown <lenb@kernel.org> wrote:
> > I've looked at two x86 drivers in drivers/gpiolib (cs5535 and langwell) and > > there's no treatment of ACPI in either of them. Since SCH is defined by Intel > > as "embedded" product, having a GPIO driver for it seems logical even despite > > problems you mention. > > FWIW > I believe that Langwell is used only in products without an ACPI BIOS. > > Poulsbo, OTOH, is used in zillions of netbooks running Windows XP. > I don't know what a cs5535 is.
Cyrix (then NatSemi then AMD) Geode companion chip. May be present without having ACPI although ACPI was added as a BIOS upgrade to the older ones.
Alan
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