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authorTim Crawford <tcrawford@system76.com>2022-11-01 11:42:28 -0600
committerFelix Held <felix-coreboot@felixheld.de>2022-11-03 12:58:26 +0000
commitc6529c7c0aadf200f187078244fbeea13ed5303a (patch)
tree2dd35e249f511f57d6571e7c3572c1fc0267b4de /src/soc/intel/alderlake/Kconfig
parent8541325f38c754299664b9f9320a29ee8394bb04 (diff)
soc/intel/alderlake: Hook up GMA ACPI brightness controls
Add function needed to generate ACPI backlight control SSDT, along with Kconfig values for accessing the registers. Tested by adding gfx register on system76/lemp11. Backlight controls work on Windows 10 and Linux 6.1. Change-Id: I1cc33bf0121ff44aea68a7e3615c5e58e2ab6ce2 Signed-off-by: Tim Crawford <tcrawford@system76.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/69076 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/soc/intel/alderlake/Kconfig')
-rw-r--r--src/soc/intel/alderlake/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/Kconfig b/src/soc/intel/alderlake/Kconfig
index cbc02e75e5..08d4132f61 100644
--- a/src/soc/intel/alderlake/Kconfig
+++ b/src/soc/intel/alderlake/Kconfig
@@ -484,4 +484,16 @@ config BUILDING_WITH_DEBUG_FSP
help
Set this option if debug build of FSP is used.
+config INTEL_GMA_BCLV_OFFSET
+ default 0xc8258
+
+config INTEL_GMA_BCLV_WIDTH
+ default 32
+
+config INTEL_GMA_BCLM_OFFSET
+ default 0xc8254
+
+config INTEL_GMA_BCLM_WIDTH
+ default 32
+
endif