There appears to be an issue with select vs choice statements; see the
message below.
Essentially, it appears a default selection in a choice statement takes
precidence over an explicit select statement for one of the choice
options.
----- Forwarded message from [EMAIL PROTECTED] -----
From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED], [EMAIL PROTECTED]
Bcc: [EMAIL PROTECTED]
Subject: RE: [BUG] 2.6.0: ARM won't build without CONFIG_CPU_FREQ_GOV_USERSPACE=y
Date: Fri, 26 Dec 2003 10:57:54 +0100
Because of "cpufreq_get()" being necessary for SA1100 it is already
special-handled for this architecture.
A snippet from arch/arm/Kconfig:
# CPUfreq on SA11x0 is special -- it _needs_ the userspace governor
config CPU_FREQ_SA1100
bool
depends on CPU_FREQ && SA1100_LART
default y
select CPU_FREQ_DEFAULT_GOV_USERSPACE
select CPU_FREQ_24_API if SYSCTL
config CPU_FREQ_SA1110
bool
depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF |
SA1100_PT_SYSTEM3)
default y
select CPU_FREQ_DEFAULT_GOV_USERSPACE
select CPU_FREQ_24_API if SYSCTL
IMO this should cause the default governor to be forced to "userspace",
and the deprecated 2.4. API [including cpufreq_get()] to be activated as
well. However, Kconfig thinks different: the default setting for
CPU_FREQ_DEFAULT_GOV (see drivers/cpufreq/Kconfig) is PERFORMANCE, and
this seems to take precedence over the "select". IMHO this is a Kconfig
bug -- can you notify the maintainer of this issue, please?
Else we'd have to change drivers/cpufreq/Kconfig from
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
to
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE if !CPU_FREQ_SA1100
default CPU_FREQ_DEFAULT_GOV_USERSPACE if !CPU_FREQ_SA1100
or disable the selection for CPU_FREQ_SA1100 completely.
Dominik
----- End forwarded message -----
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
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