From 93d6ba0889d0247ac264172858ef57698c960464 Mon Sep 17 00:00:00 2001 From: Alexey Kharlamov Date: Tue, 9 Jan 2018 00:50:06 +0300 Subject: ec/lenovo/h8: Implement ACPI methods to set battery thresholds There are two known reverse-engineered ways to manage battery thresholds. This patch implements them and adds a way to enable them for different mainboards. Tested on W530 with 4.18.3-gentoo kernel and X220 with 4.20.11. Works fine with new Linux userspace API for controlling battery thresholds, available since 4.17. (/sys/class/power_supply/BAT0/charge_(start|stop)_threshold). The new API is supported by TLP (you might need to set NATACPI_ENABLE=1 in /etc/tlp.conf). tpacpi-bat works fine too. Signed-off-by: Alexey Kharlamov Signed-off-by: Evgeny Zinoviev Change-Id: I2a90f9e9b32462b8a5e9bc8d3087ae0fea563ea5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/23178 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Rudolph --- src/mainboard/lenovo/t420/Kconfig | 1 + src/mainboard/lenovo/t420/acpi/ec.asl | 2 ++ 2 files changed, 3 insertions(+) (limited to 'src/mainboard/lenovo/t420') diff --git a/src/mainboard/lenovo/t420/Kconfig b/src/mainboard/lenovo/t420/Kconfig index d4492321af..f40e9c0c92 100644 --- a/src/mainboard/lenovo/t420/Kconfig +++ b/src/mainboard/lenovo/t420/Kconfig @@ -8,6 +8,7 @@ config BOARD_SPECIFIC_OPTIONS select SOUTHBRIDGE_INTEL_BD82X6X select EC_LENOVO_PMH7 select EC_LENOVO_H8 + select H8_HAS_BAT_TRESHOLDS_IMPL select NO_UART_ON_SUPERIO select BOARD_ROMSIZE_KB_8192 select HAVE_ACPI_TABLES diff --git a/src/mainboard/lenovo/t420/acpi/ec.asl b/src/mainboard/lenovo/t420/acpi/ec.asl index d631f121fb..4b11e56bed 100644 --- a/src/mainboard/lenovo/t420/acpi/ec.asl +++ b/src/mainboard/lenovo/t420/acpi/ec.asl @@ -19,3 +19,5 @@ Scope(\_SB.PCI0.LPCB.EC) { } + +#include -- cgit v1.2.3