openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

x86/platform: Increase maximum GPIO number for X86_64 

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>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20210826150317.29435-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2021-08-26 18:03:17 +03:00 committed by Thomas Gleixner
parent aeef8b5089
commit d7109fe3a0
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/x86/Kconfig
View File

@ -340,6 +340,11 @@ 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