On 05/15/2014 03:50 PM, Rolf Eike Beer wrote:
Lan Tianyu wrote:
On 05/13/2014 09:09 PM, Rolf Eike Beer wrote:
Am Montag, 28. April 2014, 22:27:39 schrieb Lan Tianyu:
ACPI 5.0 spec(5.5.2.4.5) defines GenericSerialBus(i2c, spi, uart)
operation
region. It allows ACPI aml code able to access such kind of devices to
implement some ACPI standard method.
On the Asus T100TA, Bios use GenericSerialBus operation region to access
i2c device to get battery info. So battery function depends on the I2C
operation region support. Here is the bug link.
https://bugzilla.kernel.org/show_bug.cgi?id=69011
Hi all,
I have tested this series and got some errors, but no additional
functionality:
Hi Rolf:
Thanks for test. Could you attach the output of dmesg and acpidump?
Which machine you are testing on?
Hi,
this is an Aava Inari 8 tablet (pre-release hardware). Please find the DSDT
and the dmesg.log attached.
In case of any further questions don't hesitate to ask, I'll try to be more
responsible.
Hi Eike:
Could you apply the patch in the attachment and attach the output of dmesg?
Regards,
Eike
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 4ed8d48..cc8c132 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -139,8 +139,7 @@ int acpi_bus_attach_private_data(acpi_handle handle, void *data)
status = acpi_attach_data(handle,
acpi_bus_private_data_handler, data);
if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO, "Error attaching device[%p] data\n",
- handle));
+ acpi_handle_err(handle, "Error attaching device data %d\n", status);
return -ENODEV;
}
