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x86/Kconfig: move and modify CONFIG_I8K 

In Kconfig, inside the "Processor type and features" menu, there is
the CONFIG_I8K option: "Dell i8k legacy laptop support". This is
very confusing - enabling CONFIG_I8K is not required for the kernel to
support old Dell laptops. This option is specific to the dell-smm-hwmon
driver, which mostly exports some hardware monitoring information and
allows the user to change fan speed.

This option is misplaced, so move CONFIG_I8K to drivers/hwmon/Kconfig,
where it belongs.

Also, modify the dependency order - change
        select SENSORS_DELL_SMM
to
        depends on SENSORS_DELL_SMM
as it is just a configuration option of dell-smm-hwmon. This includes
changing the option type from tristate to bool. It was tristate because
it could select CONFIG_SENSORS_DELL_SMM=m .

When running "make oldconfig" on configurations with
CONFIG_SENSORS_DELL_SMM enabled , this change will result in an
additional question (which could be printed several times during
bisecting). I think that tidying up the configuration is worth it,
though.

Next patch tweaks the description of CONFIG_I8K.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Cc: Pali Rohár <pali@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Mark Gross <markgross@kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220212125654.357408-1-mat.jonczyk@o2.pl
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Mateusz Jończyk 2022-02-12 13:56:53 +01:00 committed by Guenter Roeck
parent f545a2fd47
commit a7a6f65a39
2 changed files with 16 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
arch/x86/Kconfig
View File

@ -1275,23 +1275,6 @@ config TOSHIBA
Say Y if you intend to run this kernel on a Toshiba portable.
Say N otherwise.
config I8K
tristate "Dell i8k legacy laptop support"
depends on HWMON
depends on PROC_FS
select SENSORS_DELL_SMM
help
This option enables legacy /proc/i8k userspace interface in hwmon
dell-smm-hwmon driver. Character file /proc/i8k reports bios version,
temperature and allows controlling fan speeds of Dell laptops via
System Management Mode. For old Dell laptops (like Dell Inspiron 8000)
it reports also power and hotkey status. For fan speed control is
needed userspace package i8kutils.
Say Y if you intend to run this kernel on old Dell laptops or want to
use userspace package i8kutils.
Say N otherwise.
config X86_REBOOTFIXUPS
bool "Enable X86 board specific fixups for reboot"
depends on X86_32

16
drivers/hwmon/Kconfig
View File

@ -506,6 +506,22 @@ config SENSORS_DELL_SMM
When option I8K is also enabled this driver provides legacy /proc/i8k
userspace interface for i8kutils package.
config I8K
bool "Dell i8k legacy laptop support"
depends on SENSORS_DELL_SMM
depends on PROC_FS
help
This option enables legacy /proc/i8k userspace interface in hwmon
dell-smm-hwmon driver. Character file /proc/i8k reports bios version,
temperature and allows controlling fan speeds of Dell laptops via
System Management Mode. For old Dell laptops (like Dell Inspiron 8000)
it reports also power and hotkey status. For fan speed control is
needed userspace package i8kutils.
Say Y if you intend to run this kernel on old Dell laptops or want to
use userspace package i8kutils.
Say N otherwise.
config SENSORS_DA9052_ADC
tristate "Dialog DA9052/DA9053 ADC"
depends on PMIC_DA9052