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Merge branches 'acpi-video' and 'acpi-x86' 

* acpi-video:
  ACPI / video: Extend chassis-type detection with a "Lunch Box" check
  ACPI / video: Refactor and fix dmi_is_desktop()

* acpi-x86:
  ACPI / x86: Make PWM2 device always present at Lenovo Yoga Book
This commit is contained in:
Rafael J. Wysocki 2019-03-04 11:17:28 +01:00
parent dcaed592b2 d693c008e3 ff6cdfd714
commit 8167e00e9e
2 changed files with 19 additions and 6 deletions
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20
drivers/acpi/acpi_video.c
View File

@ -2124,21 +2124,29 @@ static int __init intel_opregion_present(void)
return opregion;
}
/* Check if the chassis-type indicates there is no builtin LCD panel */
static bool dmi_is_desktop(void)
{
const char *chassis_type;
unsigned long type;
chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
if (!chassis_type)
return false;
if (!strcmp(chassis_type, "3") || /* 3: Desktop */
!strcmp(chassis_type, "4") || /* 4: Low Profile Desktop */
!strcmp(chassis_type, "5") || /* 5: Pizza Box */
!strcmp(chassis_type, "6") || /* 6: Mini Tower */
!strcmp(chassis_type, "7") || /* 7: Tower */
!strcmp(chassis_type, "11")) /* 11: Main Server Chassis */
if (kstrtoul(chassis_type, 10, &type) != 0)
return false;
switch (type) {
case 0x03: /* Desktop */
case 0x04: /* Low Profile Desktop */
case 0x05: /* Pizza Box */
case 0x06: /* Mini Tower */
case 0x07: /* Tower */
case 0x10: /* Lunch Box */
case 0x11: /* Main Server Chassis */
return true;
}
return false;
}

5
drivers/acpi/x86/utils.c
View File

@ -56,6 +56,11 @@ static const struct always_present_id always_present_ids[] = {
*/
ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT), {}),
ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),
/* Lenovo Yoga Book uses PWM2 for keyboard backlight control */
ENTRY("80862289", "2", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
}),
/*
* The INT0002 device is necessary to clear wakeup interrupt sources
* on Cherry Trail devices, without it we get nobody cared IRQ msgs.