a Westerberg
Signed-off-by: Lan Tianyu
---
Change since V2:
Coding style change
Change since V1:
Remove redundant blank line and some coding style fixs.
drivers/acpi/battery.c | 4 +++
drivers/acpi/scan.c | 85 +
drivers/
are met and then do
acpi_bus_attach()
for the device in order to resolve battery _STA issue on the Asus T100TA.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=69011
Tested-by: Jan-Michael Brummer
Tested-by: Adam Williamson
Tested-by: Michael Shigorin
Acked-by: Wolfram Sang
Signe
Hi Mika:
Thank you for review. Will resolve your comments in the next version.
--
Best regards
Tianyu Lan
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On 2014年11月20日 00:05, Wolfram Sang wrote:
> As long as the I2C related changes are that minimal:
>
> Acked-by: Wolfram Sang for the I2C part
>
Thank you!
--
Best regards
Tianyu Lan
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the body of a message to majord...@vg
are met and then do
acpi_bus_attach()
for the device in order to resolve battery _STA issue on the Asus T100TA.
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=69011
Tested-by: Jan-Michael Brummer
Tested-by: Adam Williamson
Tested-by: Michael Shigorin
Signed-off-by: Lan Tianyu
---
drivers/
are met and then do
acpi_bus_attach()
for the device in order to resolve battery _STA issue on the Asus T100TA.
Signed-off-by: Lan Tianyu
---
Change since V1:
Rework struct acpi_dep_data, record master and slave's ACPI handle.
Rename dep_present with dep_unmet and make it as a count.
On 2014年09月26日 03:27, Rafael J. Wysocki wrote:
> I'm not sure what you mean. "Dependent" means "depending on something", so
> the
> question reads "This requires the devices with _DEP to have a list of devices
> that depend on them" which is probably not what you meant.
>
Sorry, I didn't say cl
On 2014年09月25日 06:27, Rafael J. Wysocki wrote:
> On Tuesday, September 23, 2014 03:06:43 PM Lan Tianyu wrote:
>> ACPI 5.0 introduces _DEP to designate device objects that OSPM should
>> assign a higher priority in start ordering due to future operation region
>> accesses.
Signed-off-by: Wolfram Sang
> Cc: Mika Westerberg
> Cc: Lan Tianyu
> Cc: Jean Delvare
> ---
>
> v2: - make all acpi functions static
> - annotate #endif
> - remove declarations in i2c.h
> - add dummy functions to i2c-core.c
> - make two seperate #
On 2014年09月23日 15:09, Lan Tianyu wrote:
> On 2014年09月23日 13:39, Wolfram Sang wrote:
>>
>>> Sorry for later response due to sickness. I can't write this patch in
>>> time. Sorry again. I will test it soon.
>>
>> Oh, get well soon! Please say so next time,
On 2014年09月23日 13:39, Wolfram Sang wrote:
>
>> Sorry for later response due to sickness. I can't write this patch in
>> time. Sorry again. I will test it soon.
>
> Oh, get well soon! Please say so next time, so I know.
>
Thanks. OK.
I have put the patch into test system and need to wait some ti
one
from
list if _DEP condition is met and clear its dep_present flag and do
acpi_bus_attch()
for the device in order to resolve battery _STA issue on the Asus T100TA.
Signed-off-by: Lan Tianyu
---
drivers/acpi/battery.c | 4 +++
drivers/acpi/scan.
t; Reported-by: Jean Delvare
> Signed-off-by: Wolfram Sang
> Cc: Mika Westerberg
> Cc: Lan Tianyu
> Cc: Jean Delvare
> ---
>
> Lan Tianyi, this is a patch I expected to get from you, fully tested. Since we
> are approaching the final release soon, I did it now. Please do tes
On 2014年09月18日 23:10, Wolfram Sang wrote:
> On Thu, Sep 18, 2014 at 03:58:57PM +0300, Mika Westerberg wrote:
>> On Thu, Sep 18, 2014 at 02:17:58PM +0200, Jean Delvare wrote:
>>> Hi guys,
>>>
>>> Sorry for jumping in a bit late, but given that I did not get involved
>>> in the discussions that led t
On 08/19/2014 11:48 PM, Mika Westerberg wrote:
On Tue, Aug 19, 2014 at 10:38:08AM -0500, Wolfram Sang wrote:
On Tue, Aug 19, 2014 at 06:16:49PM +0300, Mika Westerberg wrote:
On Tue, Aug 19, 2014 at 10:03:55AM -0500, Wolfram Sang wrote:
On Tue, Aug 12, 2014 at 10:33:38AM +0800, Xiubo Li wrote:
On 2014年08月15日 19:03, Wolfram Sang wrote:
> On Fri, Aug 15, 2014 at 01:38:59PM +0800, Lan Tianyu wrote:
>> Commit da3c6647(I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI
>> config) adds a new kernel config I2C_ACPI and make I2C core built in
>> when the config is se
I2C_ACPI to ACPI_I2C_OPREGION. New config
only controls ACPI I2C operation region code and depends on I2C=y.
Signed-off-by: Lan Tianyu
---
drivers/i2c/Kconfig| 20 +++-
drivers/i2c/Makefile | 2 +-
drivers/i2c/i2c-acpi.c | 2 ++
include/linux/i2c.h| 12
4
On 2014年08月13日 15:07, Mika Westerberg wrote:
> On Wed, Aug 13, 2014 at 10:50:32AM +0800, Lan Tianyu wrote:
>> On 2014年08月13日 10:03, Wolfram Sang wrote:
>>> On Tue, Aug 12, 2014 at 12:53:21PM +0300, Mika Westerberg wrote:
>>>> On Mon, Aug 11, 2014 at 03:00:55PM +0800,
On 2014年08月13日 10:03, Wolfram Sang wrote:
> On Tue, Aug 12, 2014 at 12:53:21PM +0300, Mika Westerberg wrote:
>> On Mon, Aug 11, 2014 at 03:00:55PM +0800, Lan Tianyu wrote:
>>> Commit da3c6647(I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI
>>> config) adds a new
core able to be a module when I2C_ACPI is
selected. Original issue the commit da3c6647 tried to avoid will
be fixed in ACPICA and it's rarely triggered during unloading module.
Signed-off-by: Lan Tianyu
---
drivers/i2c/Kconfig | 8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
On 2014年08月10日 01:34, Linus Torvalds wrote:
> On Sat, Aug 9, 2014 at 6:56 AM, Wolfram Sang wrote:
>>
>> here is the pull request for 3.17 for the I2C subsystem. Highlights:
>
> Lowlight: selecting ACPI support (which used to be the default if ACPI
> was enabled) now forces i2c to be built-in.
>
On 2014年06月27日 19:03, Wolfram Sang wrote:
> On Tue, May 20, 2014 at 08:59:24PM +0800, Lan Tianyu wrote:
>> Clean up ACPI related code in the i2c core and add CONFIG_I2C_ACPI
>> to enable I2C ACPI code.
>>
>> Current there is a race between removing I2C ACPI operation
On 2014年05月30日 20:10, Wolfram Sang wrote:
>>> Hi Wolfram:
>>> Since this version resolved all comments, it's ok for you?
>
> Sorry, I misunderstood. I thought a V4 was needed, but it isn't. I'll
> try to have a look this weekend.
>
Hi Wolfram:
Sorry to bother you. Could you have a lo
On 05/30/2014 08:10 PM, Wolfram Sang wrote:
Hi Wolfram:
Since this version resolved all comments, it's ok for you?
Sorry, I misunderstood. I thought a V4 was needed, but it isn't. I'll
try to have a look this weekend.
OK. Thanks.
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To unsubscribe from this list: send the line "unsubs
On 05/20/2014 08:59 PM, Lan Tianyu wrote:
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
On 05/20/2014 10:17 PM, Rolf Eike Beer wrote:
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
On 2014年05月21日 05:25, Rafael J. Wysocki wrote:
> On Tuesday, May 20, 2014 08:59:19 PM Lan Tianyu wrote:
>> 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
On 2014年05月21日 05:24, Rafael J. Wysocki wrote:
> On Tuesday, May 20, 2014 08:59:20 PM Lan Tianyu wrote:
>> The acpi_buffer_to_resource is needed in i2c module
>> to convert aml buffer to struct acpi_resource
>>
>> Reviewed-by: Mika Westerberg
>> Signed-of
Use acpi_bus_attach_private_data() to attach private data
instead of acpi_attach_data().
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/acpi/thermal.c | 11 ---
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi
: Lan Tianyu
---
drivers/acpi/bus.c | 28
include/acpi/acpi_bus.h | 2 ++
2 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index cf925c4..8445d57 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
ol access on the Asus T100TA, other protocols
have not been tested.
About RawBytes and RawProcessBytes protocol, they needs specific drivers to
interpret
reference data from AML code according ACPI 5.0 SPEC(5.5.2.4.5.3.9 and
5.5.2.4.5.3.10).
So far, not found such case and will add when find real
Clean up ACPI related code in the i2c core and add CONFIG_I2C_ACPI
to enable I2C ACPI code.
Current there is a race between removing I2C ACPI operation region
and ACPI AML code accessing. So make i2c core built-in if CONFIG_I2C_ACPI
is set.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
oid some
redundant
error log.
Change since V1:
Fix some code style issues. Change prefix i2c_acpi to acpi_i2c.
Move ACPI related code in the i2c core to i2c-acpi.c. Add CONFIG_I2C_ACPI
and make i2c core built-in when it's set to avoid i2c ACPI operation region
being removed.
La
The acpi_buffer_to_resource is needed in i2c module
to convert aml buffer to struct acpi_resource
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/acpi/acpica/rscreate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica
On 05/19/2014 04:49 PM, Mika Westerberg wrote:
On Sat, May 17, 2014 at 07:48:34PM +0200, Wolfram Sang wrote:
On Tue, Apr 29, 2014 at 11:16:09AM +0300, Mika Westerberg wrote:
On Mon, Apr 28, 2014 at 10:27:48PM +0800, Lan Tianyu wrote:
This patch is to add CONFIG_I2C_ACPI. Current there is a
On 05/18/2014 01:17 AM, Wolfram Sang wrote:
BTW what were your test scenarios for these functions and smbus quick?
From ACPI spec, Read/Write quick and Word/Block process call
protocol will be used by Bios ACPI code. But so far, I don't find
such machines. So these functions has not been te
On 05/17/2014 06:21 PM, Wolfram Sang wrote:
On Mon, Apr 28, 2014 at 10:27:45PM +0800, Lan Tianyu wrote:
Add i2c_smbus_word/block_proc_call() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
On 05/17/2014 05:41 PM, Wolfram Sang wrote:
On Mon, Apr 28, 2014 at 10:27:44PM +0800, Lan Tianyu wrote:
Add i2c_smbus_quick_write/read() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
We
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
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
On 2014年04月29日 06:51, Rafael J. Wysocki wrote:
> On Monday, April 28, 2014 10:27:39 PM Lan Tianyu wrote:
>> 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
From: Lv Zheng
The size of the buffer allocated for generic_serial_bus region access
is not correct. This patch introduces acpi_ex_get_serial_access_length()
to be invoked to obtain correct data buffer length. Reported by
Lan Tianyu, Fixed by Lv Zheng.
Reviewed-by: Mika Westerberg
Signed-off
Add i2c_smbus_quick_write/read() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 30 ++
include/linux/i2c.h| 2 ++
2 files changed
The acpi_buffer_to_resource is needed in i2c module
to convert aml buffer to struct acpi_resource
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/acpi/acpica/rscreate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica
Add i2c_smbus_word/block_proc_call() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 56 ++
include/linux/i2c.h
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 batter
Use acpi_bus_attach_private_data() to attach private data
instead of acpi_attach_data().
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/acpi/thermal.c | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi
: Lan Tianyu
---
drivers/acpi/bus.c | 18 +-
include/acpi/acpi_bus.h | 1 +
2 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index e7e5844..4ed8d48 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -132,6 +132,22
ol access on the Asus T100TA, other protocols
have not been tested.
About RawBytes and RawProcessBytes protocol, they needs specific drivers to
interpret
reference data from AML code according ACPI 5.0 SPEC(5.5.2.4.5.3.9 and
5.5.2.4.5.3.10).
So far, not found such case and will add when find real
Clean up ACPI related code in the i2c core.
Reviewed-by: Mika Westerberg
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-acpi.c | 89 ++
drivers/i2c/i2c-core.c | 95 --
include/linux/i2c.h| 2 ++
3
This patch is to add CONFIG_I2C_ACPI. Current there is a race between
removing I2C ACPI operation region and ACPI AML code accessing.
So make i2c core built-in if CONFIG_I2C_ACPI is set.
Signed-off-by: Lan Tianyu
---
drivers/i2c/Kconfig | 17 -
drivers/i2c/Makefile | 2
On 2014年04月23日 15:28, Mika Westerberg wrote:
> On Wed, Apr 23, 2014 at 09:53:21AM +0800, Lan Tianyu wrote:
>> Hi Mika:
>> Thanks a lot for your review.
>>
>> On 2014年04月22日 19:36, Mika Westerberg wrote:
>>>>> +
>>>>> + client.a
On 2014年04月22日 19:45, Mika Westerberg wrote:
> On Tue, Apr 22, 2014 at 02:24:15PM +0800, Lan Tianyu wrote:
>> This patch is to add CONFIG_I2C_ACPI. Current there is a race between
>> removing I2C ACPI operation region and ACPI AML code accessing.
>> So make i2c core built-in
Hi Mika:
Thanks a lot for your review.
On 2014年04月22日 19:36, Mika Westerberg wrote:
>> > +
>> > + client.adapter = adapter;
>> > + client.addr = sb->slave_address;
>> > + client.flags = 0;
> I'm not sure if this is the correct way to use struct i2c_client
> (allocating it from stack and
From: Lv Zheng
The size of the buffer allocated for generic_serial_bus region access
is not correct. This patch introduces acpi_ex_get_serial_access_length()
to be invoked to obtain correct data buffer length. Reported by
Lan Tianyu, Fixed by Lv Zheng.
Signed-off-by: Lv Zheng
Signed-off-by
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 batter
The acpi_buffer_to_resource is needed in i2c module
to convert aml buffer to struct acpi_resource
Signed-off-by: Lan Tianyu
---
drivers/acpi/acpica/rscreate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 75d3690
Clean up ACPI related code in the i2c core.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-acpi.c | 89 ++
drivers/i2c/i2c-core.c | 95 --
include/linux/i2c.h| 3 ++
3 files changed, 92 insertions
There is already acpi_bus_get_private_data() to get ACPI handle data
which is associated with acpi_bus_private_data_handler(). This patch
is to add acpi_bus_attach_private_data() to make a pair and facilitate
to attach and get data to/from ACPI handle.
Signed-off-by: Lan Tianyu
---
drivers/acpi
Add i2c_smbus_quick_write/read() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 30 ++
include/linux/i2c.h| 2 ++
2 files changed, 32 insertions(+)
diff --git a
Use acpi_bus_attach_private_data() to attach private data
instead of acpi_attach_data().
Signed-off-by: Lan Tianyu
---
drivers/acpi/thermal.c | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index c1e31a4..7ab9392
ol access on the Asus T100TA, other protocols
have not been tested.
About RawBytes and RawProcessBytes protocol, they needs specific drivers to
interpret
reference data from AML code according ACPI 5.0 SPEC(5.5.2.4.5.3.9 and
5.5.2.4.5.3.10).
So far, not found such case and will add when find real
Add i2c_smbus_word/block_proc_call() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 56 ++
include/linux/i2c.h| 4
2 files changed, 60
This patch is to add CONFIG_I2C_ACPI. Current there is a race between
removing I2C ACPI operation region and ACPI AML code accessing.
So make i2c core built-in if CONFIG_I2C_ACPI is set.
Signed-off-by: Lan Tianyu
---
drivers/i2c/Kconfig | 17 -
drivers/i2c/Makefile | 2
On 2014年04月22日 05:38, Rafael J. Wysocki wrote:
> Hi,
>
> On Wednesday, April 16, 2014 09:24:34 PM Lan Tianyu wrote:
>> From: Lv Zheng
>>
>> The size of the buffer allocated for generic_serial_bus region access
>> is not correct. This patch introduces acpi_ex_ge
On 04/16/2014 09:24 PM, Lan Tianyu wrote:
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
Use acpi_bus_attach_private_data() to attach private data
instead of acpi_attach_data().
Signed-off-by: Lan Tianyu
---
drivers/acpi/thermal.c | 9 +++--
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index c1e31a4..7ab9392
The acpi_buffer_to_resource is needed in i2c module
to convert aml buffer to struct acpi_resource
Signed-off-by: Lan Tianyu
---
drivers/acpi/acpica/rscreate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 75d3690
There is already acpi_bus_get_private_data() to get ACPI handle data
which is associated with acpi_bus_private_data_handler(). This patch
is to add acpi_bus_attach_private_data() to make a pair and facilitate
to attach and get data to/from ACPI handle.
Signed-off-by: Lan Tianyu
---
drivers/acpi
Add i2c_smbus_quick_write/read() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 30 ++
include/linux/i2c.h| 2 ++
2 files changed, 32 insertions(+)
diff --git a
Add i2c_smbus_word/block_proc_call() helper function. These will be used
in the implementation of i2c ACPI address space handler.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-core.c | 56 ++
include/linux/i2c.h| 4
2 files changed, 60
ol access on the Asus T100TA, other protocols
have not been tested.
About RawBytes and RawProcessBytes protocol, they needs specific drivers to
interpret
reference data from AML code according ACPI 5.0 SPEC(5.5.2.4.5.3.9 and
5.5.2.4.5.3.10).
So far, not found such case and will add when find r
This patch is to add CONFIG_I2C_ACPI. Current there is a race between
removing I2C ACPI operation region and ACPI AML code accessing.
So make i2c core built-in if CONFIG_I2C_ACPI is set. The race will
be fixed later in the ACPICA.
Signed-off-by: Lan Tianyu
---
drivers/i2c/Kconfig | 16
Clean up ACPI related code in the i2c core.
Signed-off-by: Lan Tianyu
---
drivers/i2c/i2c-acpi.c | 89 ++
drivers/i2c/i2c-core.c | 95 --
include/linux/i2c.h| 3 ++
3 files changed, 92 insertions
From: Lv Zheng
The size of the buffer allocated for generic_serial_bus region access
is not correct. This patch introduces acpi_ex_get_serial_access_length()
to be invoked to obtain correct data buffer length. Reported by
Lan Tianyu, Fixed by Lv Zheng.
Signed-off-by: Lv Zheng
Signed-off-by
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 batter
---Original Message-
>> From: linux-acpi-ow...@vger.kernel.org [mailto:linux-acpi-
>> ow...@vger.kernel.org] On Behalf Of Lan Tianyu
>> Sent: Sunday, July 08, 2012 8:25 PM
>> To: Mika Westerberg
>> Cc: Zhang, Rui; kh...@linux-fr.org; ben-li...@fluff.org;
>&
On 2012年07月06日 13:52, Mika Westerberg wrote:
On Thu, Jul 05, 2012 at 03:01:57PM +0800, Zhang Rui wrote:
+Note that although these are ACPI devices, we prefer to use PnP drivers
for them,
+this is because:
+1. all the non-ACPI-predefined Devices are exported as PnP devices as
well
+2. PnP bus is
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