The APM emulation code does multiple things, and some of them depend on PM_SLEEP, while the battery management does not. However, selecting the symbol like SHARPSL_PM does causes a Kconfig warning:
warning: (SHARPSL_PM && PMAC_APM_EMU) selects APM_EMULATION which has unmet direct dependencies (PM && SYS_SUPPORTS_APM_EMULATION) >From all I can tell, this is completely harmless, and we can simply allow APM_EMULATION to be enabled here, even if PM is not. Signed-off-by: Arnd Bergmann <[email protected]> --- kernel/power/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 02e8dfaa1ce2..68d3ebc12601 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -235,7 +235,7 @@ config PM_TRACE_RTC config APM_EMULATION tristate "Advanced Power Management Emulation" - depends on PM && SYS_SUPPORTS_APM_EMULATION + depends on SYS_SUPPORTS_APM_EMULATION help APM is a BIOS specification for saving power using several different techniques. This is mostly useful for battery powered laptops with -- 2.7.0
