From: Ike Panhc <[email protected]> Subject: drivers/platform/x86/acer-wmi.c: no wifi rfkill on Lenovo machines
We have several reports which says acer-wmi is loaded on ideapads and register rfkill for wifi which can not be unblocked. Symptom is that wifi just doesn't work on these machines until the acer-wmi driver is unloaded. Since ideapad-laptop also register rfkill for wifi and it works reliably, it will be fine acer-wmi is not going to register rfkill for wifi once VPC2004 is found. Also put IBM0068/LEN0068 in the list. Though thinkpad_acpi has no wifi rfkill capability, there are reports which says acer-wmi also block wireless on Thinkpad E520/E420. Addresses http://bugs.debian.org/655941 and https://bugzilla.redhat.com/show_bug.cgi?id=674353 Signed-off-by: Ike Panhc <[email protected]> Acked-by: Lee, Chun-Yi <[email protected]> Tested-by: Andrey <[email protected]> # Ideapad Z570 Signed-off-by: Jonathan Nieder <[email protected]> Cc: Matthew Garrett <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> --- drivers/platform/x86/acer-wmi.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff -puN drivers/platform/x86/acer-wmi.c~drivers-platform-x86-acer-wmic-no-wifi-rfkill-on-lenovo-machines drivers/platform/x86/acer-wmi.c --- a/drivers/platform/x86/acer-wmi.c~drivers-platform-x86-acer-wmic-no-wifi-rfkill-on-lenovo-machines +++ a/drivers/platform/x86/acer-wmi.c @@ -679,6 +679,32 @@ static acpi_status AMW0_find_mailled(voi return AE_OK; } +static int AMW0_set_cap_acpi_check_device_found; + +static acpi_status AMW0_set_cap_acpi_check_device_cb(acpi_handle handle, + u32 level, void *context, void **retval) +{ + AMW0_set_cap_acpi_check_device_found = 1; + return AE_OK; +} + +static const struct acpi_device_id norfkill_ids[] = { + { "VPC2004", 0}, + { "IBM0068", 0}, + { "LEN0068", 0}, + { "", 0}, +}; + +static int AMW0_set_cap_acpi_check_device(void) +{ + const struct acpi_device_id *id; + + for (id = norfkill_ids; id->id[0]; id++) + acpi_get_devices(id->id, AMW0_set_cap_acpi_check_device_cb, + NULL, NULL); + return AMW0_set_cap_acpi_check_device_found; +} + static acpi_status AMW0_set_capabilities(void) { struct wmab_args args; @@ -692,7 +718,9 @@ static acpi_status AMW0_set_capabilities * work. */ if (wmi_has_guid(AMW0_GUID2)) { - interface->capability |= ACER_CAP_WIRELESS; + if ((quirks != &quirk_unknown) || + !AMW0_set_cap_acpi_check_device()) + interface->capability |= ACER_CAP_WIRELESS; return AE_OK; } _ -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
