<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/acpi/ec.c, branch v3.2.2</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Merge branch 'ec-cleanup' into release</title>
<updated>2011-05-29T08:40:39+00:00</updated>
<author>
<name>Len Brown</name>
<email>len.brown@intel.com</email>
</author>
<published>2011-05-29T08:40:39+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=751516f0a9bad32544f40f471037c0e45fb639c9'/>
<id>751516f0a9bad32544f40f471037c0e45fb639c9</id>
<content type='text'>
Conflicts:
	drivers/platform/x86/compal-laptop.c
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<pre>
Conflicts:
	drivers/platform/x86/compal-laptop.c
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branches 'acpica', 'aml-custom', 'bugzilla-16548', 'bugzilla-20242', 'd3-cold', 'ec-asus' and 'thermal-fix' into release</title>
<updated>2011-05-29T08:38:48+00:00</updated>
<author>
<name>Len Brown</name>
<email>len.brown@intel.com</email>
</author>
<published>2011-05-29T08:38:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6288cf1e768ae73db5ddaaae54d85245cc1c2b56'/>
<id>6288cf1e768ae73db5ddaaae54d85245cc1c2b56</id>
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<pre>
</pre>
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</content>
</entry>
<entry>
<title>ACPI EC: remove redundant code</title>
<updated>2011-05-29T06:59:50+00:00</updated>
<author>
<name>Zhang Rui</name>
<email>rui.zhang@intel.com</email>
</author>
<published>2011-04-26T08:29:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=08b53f0e6b565fe8dc0b8f929960ed16d76291bd'/>
<id>08b53f0e6b565fe8dc0b8f929960ed16d76291bd</id>
<content type='text'>
ec-&gt;handle is set in ec_parse_device(), so don't bother to set it again.

Signed-off-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
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<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
ec-&gt;handle is set in ec_parse_device(), so don't bother to set it again.

Signed-off-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI EC: enable MSI workaround for Quanta laptops</title>
<updated>2011-05-29T05:35:46+00:00</updated>
<author>
<name>Zhang Rui</name>
<email>rui.zhang@intel.com</email>
</author>
<published>2011-04-26T08:30:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=534bc4e3d27096e2f3fc00c14a20efd597837a4f'/>
<id>534bc4e3d27096e2f3fc00c14a20efd597837a4f</id>
<content type='text'>
Enable MSI workaround for Quanta laptops.
https://bugzilla.kernel.org/show_bug.cgi?id=20242

Tested-by: Jan-Matthias Braun &lt;jan_braun@gmx.net&gt;
Signed-off-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Enable MSI workaround for Quanta laptops.
https://bugzilla.kernel.org/show_bug.cgi?id=20242

Tested-by: Jan-Matthias Braun &lt;jan_braun@gmx.net&gt;
Signed-off-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: EC: add another DMI check for ASUS hardware</title>
<updated>2011-04-25T20:54:15+00:00</updated>
<author>
<name>Peter Collingbourne</name>
<email>peter@pcc.me.uk</email>
</author>
<published>2011-04-24T21:09:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=af986d101d141f10231ffa7e40ae397dc7356857'/>
<id>af986d101d141f10231ffa7e40ae397dc7356857</id>
<content type='text'>
Commit 0adf3c746a73684b3f8c2821a584e1db998f61e9 introduced a regression
by making the ECDT validation test for ASUS hardware more restrictive.
The previous test used the dmi_name_in_vendors function which searches
a number of DMI fields, while the new test checked only the BIOS
vendor, which is known to not match on an ASUS F5GL laptop which
requires ECDT validation.

Add a rule to ec_dmi_table based on an alternative DMI pattern for
ASUS hardware as found elsewhere in the kernel.

Signed-off-by: Peter Collingbourne &lt;peter@pcc.me.uk&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit 0adf3c746a73684b3f8c2821a584e1db998f61e9 introduced a regression
by making the ECDT validation test for ASUS hardware more restrictive.
The previous test used the dmi_name_in_vendors function which searches
a number of DMI fields, while the new test checked only the BIOS
vendor, which is known to not match on an ASUS F5GL laptop which
requires ECDT validation.

Add a rule to ec_dmi_table based on an alternative DMI pattern for
ASUS hardware as found elsewhere in the kernel.

Signed-off-by: Peter Collingbourne &lt;peter@pcc.me.uk&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI EC: remove dead code</title>
<updated>2011-04-01T06:24:31+00:00</updated>
<author>
<name>Thomas Renninger</name>
<email>trenn@suse.de</email>
</author>
<published>2011-03-31T11:36:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1cb7b1e0de6a1f8f071f4a146e3d10f3a662f707'/>
<id>1cb7b1e0de6a1f8f071f4a146e3d10f3a662f707</id>
<content type='text'>
static void acpi_ec_gpe_query(void *ec_cxt);
-&gt; The function is right above this declaration -&gt; not needed.

poll_force is also not used, cleaned up in ec.c and its users:
compal-laptop and msi-laptop.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
static void acpi_ec_gpe_query(void *ec_cxt);
-&gt; The function is right above this declaration -&gt; not needed.

poll_force is also not used, cleaned up in ec.c and its users:
compal-laptop and msi-laptop.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPICA: Implicit notify support</title>
<updated>2011-01-12T09:27:00+00:00</updated>
<author>
<name>Lin Ming</name>
<email>ming.m.lin@intel.com</email>
</author>
<published>2010-12-13T05:39:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=bba63a296ffab20e08d9e8252d2f0d99050ac859'/>
<id>bba63a296ffab20e08d9e8252d2f0d99050ac859</id>
<content type='text'>
This feature provides an automatic device notification for wake devices
when a wakeup GPE occurs and there is no corresponding GPE method or
handler. Rather than ignoring such a GPE, an implicit AML Notify
operation is performed on the parent device object.
This feature is not part of the ACPI specification and is provided for
Windows compatibility only.

Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
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<pre>
This feature provides an automatic device notification for wake devices
when a wakeup GPE occurs and there is no corresponding GPE method or
handler. Rather than ignoring such a GPE, an implicit AML Notify
operation is performed on the parent device object.
This feature is not part of the ACPI specification and is provided for
Windows compatibility only.

Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPICA: New GPE handler callback definition</title>
<updated>2011-01-12T09:24:41+00:00</updated>
<author>
<name>Lin Ming</name>
<email>ming.m.lin@intel.com</email>
</author>
<published>2010-12-13T05:38:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8b6cd8ad18def34bfc5045b2a0234329bf94cf78'/>
<id>8b6cd8ad18def34bfc5045b2a0234329bf94cf78</id>
<content type='text'>
The new GPE handler callback has 2 additional parameters, gpe_device and
gpe_number.

typedef
u32 (*acpi_gpe_handler) (acpi_handle gpe_device, u32 gpe_number, void *context);

Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The new GPE handler callback has 2 additional parameters, gpe_device and
gpe_number.

typedef
u32 (*acpi_gpe_handler) (acpi_handle gpe_device, u32 gpe_number, void *context);

Signed-off-by: Lin Ming &lt;ming.m.lin@intel.com&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: EC: Add another dmi match entry for MSI hardware</title>
<updated>2010-12-09T22:08:46+00:00</updated>
<author>
<name>Alexey Starikovskiy</name>
<email>astarikovskiy@suse.de</email>
</author>
<published>2010-12-09T22:07:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a5dc4f898c2a0f66e2cefada6c687db82ba2fcbc'/>
<id>a5dc4f898c2a0f66e2cefada6c687db82ba2fcbc</id>
<content type='text'>
http://bugzilla.kernel.org/show_bug.cgi?id=15418

Signed-off-by: Alexey Starikovskiy &lt;astarikovskiy@suse.de&gt;
cc: stable@kernel.org
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
http://bugzilla.kernel.org/show_bug.cgi?id=15418

Signed-off-by: Alexey Starikovskiy &lt;astarikovskiy@suse.de&gt;
cc: stable@kernel.org
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: Make Embedded Controller command timeout delay configurable</title>
<updated>2010-10-22T05:21:30+00:00</updated>
<author>
<name>Thomas Renninger</name>
<email>trenn@suse.de</email>
</author>
<published>2010-10-21T16:24:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=7a18e96dcbdec3c96876444ae2c7e36ce458e151'/>
<id>7a18e96dcbdec3c96876444ae2c7e36ce458e151</id>
<content type='text'>
Here and then there show up machines which need higher timeout values.
Finding this on affected machines can be cumbersome, because
ACPI_EC_DELAY is a compile option -&gt; make it configurable via boot param.

This can even be provided writable at runtime via:
/sys/modules/acpi/parameters/ec_delay

Known machines where this helps:
Some HP machines where for whatever reasons specific EC accesses take
very long at resume from S3 (in _WAK function).
The AE_TIME error is passed upwards and the ACPI interpreter will
not execute the rest of the _WAK function which results in not properly
initialized devices/variables with different side-effects.

Afaik, on some MSI machines this helped as well.

If this param is needed there probably are underlying problems like:
  - EC firmware bug
  - A kernel EC driver bug
  - An ACPI interpreter behavior (e.g. timings when specific
    EC accesses happen and how) which the EC does not like
  - ...
which should get evaluated further, but often are nasty or
impossible to fix from OS side.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Here and then there show up machines which need higher timeout values.
Finding this on affected machines can be cumbersome, because
ACPI_EC_DELAY is a compile option -&gt; make it configurable via boot param.

This can even be provided writable at runtime via:
/sys/modules/acpi/parameters/ec_delay

Known machines where this helps:
Some HP machines where for whatever reasons specific EC accesses take
very long at resume from S3 (in _WAK function).
The AE_TIME error is passed upwards and the ACPI interpreter will
not execute the rest of the _WAK function which results in not properly
initialized devices/variables with different side-effects.

Afaik, on some MSI machines this helped as well.

If this param is needed there probably are underlying problems like:
  - EC firmware bug
  - A kernel EC driver bug
  - An ACPI interpreter behavior (e.g. timings when specific
    EC accesses happen and how) which the EC does not like
  - ...
which should get evaluated further, but often are nasty or
impossible to fix from OS side.

Signed-off-by: Thomas Renninger &lt;trenn@suse.de&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
