soc/intel/{icl,tgl,jsl,ehl}: enable ACPI CPPC entries
Enable CPPC entries generation, needed for Intel SpeedShift.
This can be tested by checking sysfs in Linux:
$ grep . /sys/devices/system/cpu/cpu?/acpi_cppc/*perf
The output should look like this, while the values may differ:
/sys/devices/system/cpu/cpu0/acpi_cppc/highest_perf:28
/sys/devices/system/cpu/cpu0/acpi_cppc/lowest_nonlinear_perf:5
/sys/devices/system/cpu/cpu0/acpi_cppc/lowest_perf:1
/sys/devices/system/cpu/cpu0/acpi_cppc/nominal_perf:24
/sys/devices/system/cpu/cpu1/acpi_cppc/highest_perf:28
/sys/devices/system/cpu/cpu1/acpi_cppc/lowest_nonlinear_perf:5
...
Change-Id: I910b4e17d4044f1bf1ecfa0643ac62fc7a8cb51b
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47543
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Sheng Lean Tan <sheng.tan@9elements.com>
diff --git a/src/soc/intel/tigerlake/Kconfig b/src/soc/intel/tigerlake/Kconfig
index cf59b60..3ef1005 100644
--- a/src/soc/intel/tigerlake/Kconfig
+++ b/src/soc/intel/tigerlake/Kconfig
@@ -44,6 +44,7 @@
select SOC_INTEL_COMMON_ACPI_WAKE_SOURCE
select SOC_INTEL_COMMON_BLOCK
select SOC_INTEL_COMMON_BLOCK_ACPI
+ select SOC_INTEL_COMMON_BLOCK_ACPI_CPPC
select SOC_INTEL_COMMON_BLOCK_ACPI_GPIO
select SOC_INTEL_COMMON_BLOCK_ACPI_LPIT
select SOC_INTEL_COMMON_BLOCK_ACPI_PEP