diff options
| author | Evgeny Sorokin <me@ch1p.io> | 2024-02-10 03:32:41 +0300 |
|---|---|---|
| committer | Felix Singer <service+coreboot-gerrit@felixsinger.de> | 2024-02-12 13:03:32 +0000 |
| commit | d48d72c9ceeccb56d89f13fa2f78d7c6b8666a0b (patch) | |
| tree | 8f255ff32c22a294249dd0195f2cb8f1f01953b7 /src/ec | |
| parent | 60a68295b817a40fd42af2f3c3de118bab97feee (diff) | |
ec/lenovo/h8/acpi: Support pulsing LEDLOGO on Haswell ThinkPads
The name LEDLOGO comes from schematics. It's the red indicator, embedded
in the dot of the 'i' of the ThinkPad logo on laptop's lid.
In vendor firmware, this led starts fading in-and-out, or, in other
words, pulsing, when laptop is put to S3. It helps to determine whether
the laptop is in S3 just by taking a look at the logo.
As of now, coreboot doesn't do anything with this particular indicator,
it's always in enabled (on) state, which is not very convenient.
This patch fixes it.
Tested on T440p.
Change-Id: I85fb69c8c1bed8635a1b31e9b8385c7036bb46dd
Signed-off-by: Evgeny Zinoviev <me@ch1p.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80437
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Nicholas Chin <nic.c3.14@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/lenovo/h8/Kconfig | 4 | ||||
| -rw-r--r-- | src/ec/lenovo/h8/acpi/systemstatus.asl | 16 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/Kconfig b/src/ec/lenovo/h8/Kconfig index 57d7da6c69..6311d54163 100644 --- a/src/ec/lenovo/h8/Kconfig +++ b/src/ec/lenovo/h8/Kconfig @@ -52,6 +52,10 @@ config H8_HAS_PRIMARY_FN_KEYS bool default n +config H8_HAS_LEDLOGO + bool + default n + config THINKPADEC_HKEY_EISAID string default "IBM0068" diff --git a/src/ec/lenovo/h8/acpi/systemstatus.asl b/src/ec/lenovo/h8/acpi/systemstatus.asl index 7598154282..80544499ee 100644 --- a/src/ec/lenovo/h8/acpi/systemstatus.asl +++ b/src/ec/lenovo/h8/acpi/systemstatus.asl @@ -12,6 +12,10 @@ Scope (\_SI) \_SB.PCI0.LPCB.EC.TLED(0x00) /* suspend TLED off */ \_SB.PCI0.LPCB.EC.TLED(0x07) +#if CONFIG(H8_HAS_LEDLOGO) + /* logo TLED off */ + \_SB.PCI0.LPCB.EC.TLED(0x0a) +#endif } If (Arg0 == 1) { @@ -21,6 +25,10 @@ Scope (\_SI) \_SB.PCI0.LPCB.EC.TLED(0x80) /* suspend TLED off */ \_SB.PCI0.LPCB.EC.TLED(0x07) +#if CONFIG(H8_HAS_LEDLOGO) + /* logo TLED on */ + \_SB.PCI0.LPCB.EC.TLED(0x8a) +#endif } If (Arg0 == 2) { @@ -30,6 +38,10 @@ Scope (\_SI) \_SB.PCI0.LPCB.EC.TLED(0x80) /* suspend LED blinking */ \_SB.PCI0.LPCB.EC.TLED(0xc7) +#if CONFIG(H8_HAS_LEDLOGO) + /* logo TLED on */ + \_SB.PCI0.LPCB.EC.TLED(0x8a) +#endif } If (Arg0 == 3) { @@ -39,6 +51,10 @@ Scope (\_SI) \_SB.PCI0.LPCB.EC.TLED(0xa0) /* suspend TLED on */ \_SB.PCI0.LPCB.EC.TLED(0x87) +#if CONFIG(H8_HAS_LEDLOGO) + /* logo TLED pulsing */ + \_SB.PCI0.LPCB.EC.TLED(0xaa) +#endif } } } |