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SubjectRe: [resend, PATCH v2 1/1] x86/platform: Increase maximum GPIO number for X86_64
On Thu, Aug 26, 2021 at 5:03 PM Andy Shevchenko
<andriy.shevchenko@linux.intel.com> 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@linux.intel.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

> ---
> 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
>

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