diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/ac.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index f71b756b05c4..8f52483219ba 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -57,12 +57,23 @@ static int acpi_ac_add(struct acpi_device *device); static int acpi_ac_remove(struct acpi_device *device); static void acpi_ac_notify(struct acpi_device *device, u32 event); +struct acpi_ac_bl { + const char *hid; + int hrv; +}; + static const struct acpi_device_id ac_device_ids[] = { {"ACPI0003", 0}, {"", 0}, }; MODULE_DEVICE_TABLE(acpi, ac_device_ids); +/* Lists of PMIC ACPI HIDs with an (often better) native charger driver */ +static const struct acpi_ac_bl acpi_ac_blacklist[] = { + { "INT33F4", -1 }, /* X-Powers AXP288 PMIC */ + { "INT34D3", 3 }, /* Intel Cherrytrail Whiskey Cove PMIC */ +}; + #ifdef CONFIG_PM_SLEEP static int acpi_ac_resume(struct device *dev); #endif @@ -424,11 +435,20 @@ static int acpi_ac_remove(struct acpi_device *device) static int __init acpi_ac_init(void) { + unsigned int i; int result; if (acpi_disabled) return -ENODEV; + for (i = 0; i < ARRAY_SIZE(acpi_ac_blacklist); i++) + if (acpi_dev_present(acpi_ac_blacklist[i].hid, "1", + acpi_ac_blacklist[i].hrv)) { + pr_info(PREFIX "AC: found native %s PMIC, not loading\n", + acpi_ac_blacklist[i].hid); + return -ENODEV; + } + #ifdef CONFIG_ACPI_PROCFS_POWER acpi_ac_dir = acpi_lock_ac_dir(); if (!acpi_ac_dir) |