hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k
This patch splits CONFIG_I8K compile option to SENSORS_DELL_SMM and CONFIG_I8K.
Option SENSORS_DELL_SMM is now used to enable compilation of dell-smm-hwmon
driver and old CONFIG_I8K option to enable /proc/i8k interface in driver.
So this change allows to compile dell-smm-hwmon driver without legacy /proc/i8k
interface which is needed only for old Dell Inspirion models or for userspace
i8kutils package.
For backward compatibility when CONFIG_I8K is enabled then also SENSORS_DELL_SMM
is enabled and so driver dell-smm-hwmon (with /proc/i8k) is compiled.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 226d569..7b756b3 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1055,24 +1055,19 @@
Say N otherwise.
config I8K
- tristate "Dell laptop support"
+ tristate "Dell i8k legacy laptop support"
select HWMON
+ select SENSORS_DELL_SMM
---help---
- This adds a driver to safely access the System Management Mode
- of the CPU on the Dell Inspiron 8000. The System Management Mode
- is used to read cpu temperature and cooling fan status and to
- control the fans on the I8K portables.
+ 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.
- This driver has been tested only on the Inspiron 8000 but it may
- also work with other Dell laptops. You can force loading on other
- models by passing the parameter `force=1' to the module. Use at
- your own risk.
-
- For information on utilities to make use of this driver see the
- I8K Linux utilities web site at:
- <http://people.debian.org/~dz/i8k/>
-
- Say Y if you intend to run this kernel on a Dell Inspiron 8000.
+ 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