From: Stefan Schaeckeler schaecsn@gmx.net
[ Upstream commit 3d730ee686800d71ecc5c3cb8460dcdcdeaf38a3 ]
Let GK45 not go into BIOS for determining the AC power state.
The BIOS wrongly returns 0, so hardcode the power state to 1.
The mini PC GK45 by Besstar Tech Lld. (aka Kodlix) just runs off AC. It does not include any batteries. Nevertheless BIOS reports AC off:
root@kodlix:/usr/src/linux# cat /sys/class/power_supply/ADP1/online 0
root@kodlix:/usr/src/linux# modprobe acpi_dbg root@kodlix:/usr/src/linux# tools/power/acpi/acpidbg
- find _PSR _SB.PCI0.SBRG.H_EC.ADP1._PSR Method 000000009283cee8 001 Args 0 Len 001C Aml 00000000f54e5f67
- execute _SB.PCI0.SBRG.H_EC.ADP1._PSR Evaluating _SB.PCI0.SBRG.H_EC.ADP1._PSR Evaluation of _SB.PCI0.SBRG.H_EC.ADP1._PSR returned object 00000000dc08c187, external buffer length 18 [Integer] = 0000000000000000
that should be
[Integer] = 0000000000000001
Signed-off-by: Stefan Schaeckeler schaecsn@gmx.net Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/ac.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index b0cb662233f1a..81aff651a0d49 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -61,6 +61,7 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
static int ac_sleep_before_get_state_ms; static int ac_check_pmic = 1; +static int ac_only;
static struct acpi_driver acpi_ac_driver = { .name = "ac", @@ -93,6 +94,11 @@ static int acpi_ac_get_state(struct acpi_ac *ac) if (!ac) return -EINVAL;
+ if (ac_only) { + ac->state = 1; + return 0; + } + status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); if (ACPI_FAILURE(status)) { @@ -200,6 +206,12 @@ static int __init ac_do_not_check_pmic_quirk(const struct dmi_system_id *d) return 0; }
+static int __init ac_only_quirk(const struct dmi_system_id *d) +{ + ac_only = 1; + return 0; +} + /* Please keep this list alphabetically sorted */ static const struct dmi_system_id ac_dmi_table[] __initconst = { { @@ -209,6 +221,13 @@ static const struct dmi_system_id ac_dmi_table[] __initconst = { DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), }, }, + { + /* Kodlix GK45 returning incorrect state */ + .callback = ac_only_quirk, + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "GK45"), + }, + }, { /* Lenovo Ideapad Miix 320, AXP288 PMIC, separate fuel-gauge */ .callback = ac_do_not_check_pmic_quirk,