On Thu, Aug 26, 2021 at 5:03 PM Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> wrote: > > By default the 512 GPIOs is the maximum on any x86 platform. > With, for example, Intel Tiger Lake-H the SoC based controller > occupies up to 480 pins. This leaves only 32 available for > GPIO expanders or other drivers, like PMIC. Hence, bump the > maximum GPIO number to 1024 for X86_64 and leave 512 for X86_32. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > --- > v2 resend: actually added Rafael and linux-acpi@ to Cc list > v2: dropped confusing comment and help, simplified defaults (Rafael) > added Rb tag (Linus) > arch/x86/Kconfig | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index 858ce2736bd6..25960fe242bd 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -338,6 +338,11 @@ config NEED_PER_CPU_PAGE_FIRST_CHUNK > config ARCH_HIBERNATION_POSSIBLE > def_bool y > > +config ARCH_NR_GPIO > + int > + default 1024 if X86_64 > + default 512 > + > config ARCH_SUSPEND_POSSIBLE > def_bool y > > -- > 2.32.0 >
