Jim found that the current kernel may trigger a build error with some
config: drivers/built-in.o: In function `int3406_thermal_probe':
int3406_thermal.c:(.text+0x1d10b8): undefined reference to
`acpi_video_get_levels'. The problem happens when CONFIG_THERMAL=y and
CONFIG_ACPI_VIDEO=m. Solve the problem by separating a kernel config for
int3406 thermal driver and add dependency on ACPI video for it.
Reported-by: Jim Davis <jim.ep...@gmail.com>
Signed-off-by: Aaron Lu <aaron...@intel.com>
---
v2: v1 still has a problem so please ignore the last patch.
drivers/thermal/Kconfig | 22 +++------------------
drivers/thermal/int340x_thermal/Kconfig | 34 ++++++++++++++++++++++++++++++++
drivers/thermal/int340x_thermal/Makefile | 2 +-
3 files changed, 38 insertions(+), 20 deletions(-)
create mode 100644 drivers/thermal/int340x_thermal/Kconfig
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 9b012ff65220..3bca14d86482 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -229,25 +229,9 @@ config INTEL_SOC_DTS_THERMAL
notification methods.The other trip is a critical trip point, which
was set by the driver based on the TJ MAX temperature.
-config INT340X_THERMAL
- tristate "ACPI INT340X thermal drivers"
- depends on X86 && ACPI
- select THERMAL_GOV_USER_SPACE
- select ACPI_THERMAL_REL
- select ACPI_FAN
- help
- Newer laptops and tablets that use ACPI may have thermal sensors and
- other devices with thermal control capabilities outside the core
- CPU/SOC, for thermal safety reasons.
- They are exposed for the OS to use via the INT3400 ACPI device object
- as the master, and INT3401~INT340B ACPI device objects as the slaves.
- Enable this to expose the temperature information and cooling ability
- from these objects to userspace via the normal thermal framework.
- This means that a wide range of applications and GUI widgets can show
- the information to the user or use this information for making
- decisions. For example, the Intel Thermal Daemon can use this
- information to allow the user to select his laptop to run without
- turning on the fans.
+menu "ACPI INT340X thermal drivers"
+source drivers/thermal/int340x_thermal/Kconfig
+endmenu
config ACPI_THERMAL_REL
tristate
diff --git a/drivers/thermal/int340x_thermal/Kconfig
b/drivers/thermal/int340x_thermal/Kconfig
new file mode 100644
index 000000000000..9a58520d24a4
--- /dev/null
+++ b/drivers/thermal/int340x_thermal/Kconfig
@@ -0,0 +1,34 @@
+#
+# ACPI INT340x thermal drivers configuration
+#
+
+config INT340X_THERMAL
+ tristate "ACPI INT340X thermal drivers"
+ depends on X86 && ACPI
+ select THERMAL_GOV_USER_SPACE
+ select ACPI_THERMAL_REL
+ select ACPI_FAN
+ help
+ Newer laptops and tablets that use ACPI may have thermal sensors and
+ other devices with thermal control capabilities outside the core
+ CPU/SOC, for thermal safety reasons.
+ They are exposed for the OS to use via the INT3400 ACPI device object
+ as the master, and INT3401~INT340B ACPI device objects as the slaves.
+ Enable this to expose the temperature information and cooling ability
+ from these objects to userspace via the normal thermal framework.
+ This means that a wide range of applications and GUI widgets can show
+ the information to the user or use this information for making
+ decisions. For example, the Intel Thermal Daemon can use this
+ information to allow the user to select his laptop to run without
+ turning on the fans.
+
+config INT3406_THERMAL
+ tristate "ACPI INT3406 display thermal driver"
+ depends on INT340X_THERMAL
+ depends on ACPI_VIDEO
+ help
+ The display thermal device represents the LED/LCD display panel
+ that may or may not include touch support. The main function of
+ the display thermal device is to allow control of the display
+ brightness in order to address a thermal condition or to reduce
+ power consumed by display device.
diff --git a/drivers/thermal/int340x_thermal/Makefile
b/drivers/thermal/int340x_thermal/Makefile
index e3e2eb20da94..a9d0429be412 100644
--- a/drivers/thermal/int340x_thermal/Makefile
+++ b/drivers/thermal/int340x_thermal/Makefile
@@ -1,5 +1,5 @@
obj-$(CONFIG_INT340X_THERMAL) += int3400_thermal.o
obj-$(CONFIG_INT340X_THERMAL) += int3402_thermal.o
obj-$(CONFIG_INT340X_THERMAL) += int3403_thermal.o
-obj-$(CONFIG_INT340X_THERMAL) += int3406_thermal.o
+obj-$(CONFIG_INT3406_THERMAL) += int3406_thermal.o
obj-$(CONFIG_ACPI_THERMAL_REL) += acpi_thermal_rel.o
--
1.9.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
