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The Halo Box features an RGB LED light bar that can be controlled through WMI methods to display any color combination. The driver exposes the LED through the LED multicolor subsystem, allowing userspace to control RGB values via sysfs: /sys/class/leds/amd_halo:multicolor:status/multi_intensity /sys/class/leds/amd_halo:multicolor:status/brightness Hardware interface: - Three separate RGB channels (Red, Green, Blue) - All 3 channels are configured at once with a single WMI method call - Value range: 0-100 (matching hardware range directly) Co-developed-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Signed-off-by: Yo-Jung Leo Lin (AMD) <Leo.Lin@amd.com> Link: https://patch.msgid.link/20260709-halo-leds-v2-plus-v8-1-b34c64277193@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
58 lines
1.9 KiB
Plaintext
58 lines
1.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# AMD x86 Platform Specific Drivers
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#
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source "drivers/platform/x86/amd/hsmp/Kconfig"
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source "drivers/platform/x86/amd/pmf/Kconfig"
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source "drivers/platform/x86/amd/pmc/Kconfig"
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source "drivers/platform/x86/amd/hfi/Kconfig"
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config AMD_3D_VCACHE
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tristate "AMD 3D V-Cache Performance Optimizer Driver"
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depends on X86_64 && ACPI
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help
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The driver provides a sysfs interface, enabling the setting of a bias
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that alters CPU core reordering. This bias prefers cores with higher
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frequencies or larger L3 caches on processors supporting AMD 3D V-Cache
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technology.
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If you choose to compile this driver as a module the module will be
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called amd_3d_vcache.
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config AMD_WBRF
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bool "AMD Wifi RF Band mitigations (WBRF)"
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depends on ACPI
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help
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WBRF(Wifi Band RFI mitigation) mechanism allows Wifi drivers
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to notify the frequencies they are using so that other hardware
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can be reconfigured to avoid harmonic conflicts.
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AMD provides an ACPI based mechanism to support WBRF on platform with
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appropriate underlying support.
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This mechanism will only be activated on platforms that advertise a
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need for it.
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config AMD_HALO_LED
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tristate "AMD Halo Box RGB LED Driver"
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depends on ACPI_WMI && LEDS_CLASS_MULTICOLOR
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help
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This driver provides RGB LED control for AMD Halo Box devices
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through the LED multicolor subsystem. The Halo Box light bar can
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be controlled via sysfs to display any RGB color combination.
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To compile this driver as a module, choose M here: the module
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will be called amd_halo_led.
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config AMD_ISP_PLATFORM
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tristate "AMD ISP4 platform driver"
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depends on I2C && X86_64 && ACPI
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help
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Platform driver for AMD platforms containing image signal processor
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gen 4. Provides camera sensor module board information to allow
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sensor and V4L drivers to work properly.
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This driver can also be built as a module. If so, the module
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will be called amd_isp4.
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