[PATCH v5 13/14] platform/x86: Update alienware-wmi config entries

Kurt Borja
2025-01-19T22:06:27Z

Add config entries for each WMI driver managed by the alienware-wmi
module to be able to conditionally compile them.

Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
---
drivers/platform/x86/dell/Kconfig | 30 +++++++++++++++++++----
drivers/platform/x86/dell/Makefile | 4 +--
drivers/platform/x86/dell/alienware-wmi.h | 23 +++++++++++++++++
3 files changed, 50 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig
index d09060aedd3f..f8a0dffcaab7 100644
--- a/drivers/platform/x86/dell/Kconfig
+++ b/drivers/platform/x86/dell/Kconfig
@@ -18,15 +18,35 @@ config ALIENWARE_WMI
tristate "Alienware Special feature control"
default m
depends on ACPI
+ depends on ACPI_WMI
+ depends on DMI
depends on LEDS_CLASS
depends on NEW_LEDS
- depends on ACPI_WMI
+ help
+ This is a driver for controlling Alienware WMI driven features.
+
+ On legacy devices, it exposes an interface for controlling the AlienFX
+ zones on Alienware machines that don't contain a dedicated
+ AlienFX USB MCU such as the X51 and X51-R2.
+
+ On newer devices, it exposes the AWCC thermal control interface through
+ known Kernel APIs.
+
+config ALIENWARE_WMI_LEGACY
+ bool "Alienware Legacy WMI device driver"
+ default y
+ depends on ALIENWARE_WMI
+ help
+ Legacy Alienware WMI driver with AlienFX LED control capabilities.
+
+config ALIENWARE_WMI_WMAX
+ bool "Alienware WMAX WMI device driver"
+ default y
+ depends on ALIENWARE_WMI
select ACPI_PLATFORM_PROFILE
help
- This is a driver for controlling Alienware BIOS driven
- features. It exposes an interface for controlling the AlienFX
- zones on Alienware machines that don't contain a dedicated AlienFX
- USB MCU such as the X51 and X51-R2.
+ Alienware WMI driver with AlienFX LED, HDMI, amplifier, deep sleep and
+ AWCC thermal control capabilities.

config DCDBAS
tristate "Dell Systems Management Base Driver"
diff --git a/drivers/platform/x86/dell/Makefile b/drivers/platform/x86/dell/Makefile
index d5718ef34c48..8ac9a933c770 100644
--- a/drivers/platform/x86/dell/Makefile
+++ b/drivers/platform/x86/dell/Makefile
@@ -6,8 +6,8 @@

obj-$(CONFIG_ALIENWARE_WMI) += alienware-wmi.o
alienware-wmi-objs := alienware-wmi-base.o
-alienware-wmi-y += alienware-wmi-legacy.o
-alienware-wmi-y += alienware-wmi-wmax.o
+alienware-wmi-$(CONFIG_ALIENWARE_WMI_LEGACY) += alienware-wmi-legacy.o
+alienware-wmi-$(CONFIG_ALIENWARE_WMI_WMAX) += alienware-wmi-wmax.o
obj-$(CONFIG_DCDBAS) += dcdbas.o
obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o
obj-$(CONFIG_DELL_RBTN) += dell-rbtn.o
diff --git a/drivers/platform/x86/dell/alienware-wmi.h b/drivers/platform/x86/dell/alienware-wmi.h
index 188440ef096e..f66ae2a6e5c5 100644
--- a/drivers/platform/x86/dell/alienware-wmi.h
+++ b/drivers/platform/x86/dell/alienware-wmi.h
@@ -70,10 +70,33 @@ int alienware_wmi_command(struct wmi_device *wdev, u32 method_id,
int alienware_alienfx_setup(struct alienfx_platdata *pdata);
void alienware_alienfx_exit(struct wmi_device *wdev);

+#if IS_ENABLED(CONFIG_ALIENWARE_WMI_LEGACY)
int __init alienware_legacy_wmi_init(void);
void __exit alienware_legacy_wmi_exit(void);
+#else
+static inline int alienware_legacy_wmi_init(void)
+{
+ return -ENODEV;
+}
+
+static inline void alienware_legacy_wmi_exit(void)
+{
+}
+#endif

+#if IS_ENABLED(CONFIG_ALIENWARE_WMI_WMAX)
int __init alienware_wmax_wmi_init(void);
void __exit alienware_wmax_wmi_exit(void);
+#else
+static inline int alienware_wmax_wmi_init(void)
+{
+ return -ENODEV;
+}
+
+
+static inline void alienware_wmax_wmi_exit(void)
+{
+}
+#endif

#endif
--
2.48.1