From: Ike Panhc <ike.pan@xxxxxxxxxxxxx> Date: Fri, 3 Feb 2012 16:46:39 +0800 We have several reports which says acer-wmi is loaded on ideapads and register rfkill for wifi which can not be unblocked. 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. Signed-off-by: Ike Panhc <ike.pan@xxxxxxxxxxxxx> Acked-by: Lee, Chun-Yi <jlee@xxxxxxxx> Tested-by: Andrey <andrey.k.p@xxxxxxxxx> # Ideapad Z570 Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx --- Hi Matthew, Here's a patch that seems to have fallen through the cracks. Symptom is that wifi just doesn't work on these machines until the acer-wmi driver is unloaded. Acked by the acer-wmi maintainer (jlee). The patch doesn't seem to be present in linux-next. Bug was present in 3.1.8, possibly on some older kernels, too. References: http://bugs.debian.org/655941 https://bugzilla.redhat.com/show_bug.cgi?id=674353 Anything interested people can do to move this forward? Jonathan drivers/platform/x86/acer-wmi.c | 30 +++++++++++++++++++++++++++++- 1 files changed, 29 insertions(+), 1 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index b848277171a4..1e5290b5396d 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -679,6 +679,32 @@ static acpi_status AMW0_find_mailled(void) 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(void) * 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; } -- 1.7.9 -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
