Merge tag 'asoc-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.18 - More componentisation work from Lars-Peter, this time mainly cleaning up the suspend and bias level transition callbacks. - Real system support for the Intel drivers and a bunch of fixes and enhancements for the associated CODEC drivers, this is going to need a lot quirks over time due to the lack of any firmware description of the boards. - Jack detect support for simple card from Dylan Reid. - A bunch of small fixes and enhancements for the Freescale drivers. - New drivers for Analog Devices SSM4567, Cirrus Logic CS35L32, Everest Semiconductor ES8328 and Freescale cards using the ASRC in newer i.MX processors.
This commit is contained in:
@@ -2545,6 +2545,30 @@ fields changed from _s32 to _u32.
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</orderedlist>
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</section>
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<section>
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<title>V4L2 in Linux 3.16</title>
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<orderedlist>
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<listitem>
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<para>Added event V4L2_EVENT_SOURCE_CHANGE.
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</para>
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</listitem>
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</orderedlist>
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</section>
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<section>
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<title>V4L2 in Linux 3.17</title>
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<orderedlist>
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<listitem>
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<para>Extended &v4l2-pix-format;. Added format flags.
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</para>
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</listitem>
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<listitem>
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<para>Added compound control types and &VIDIOC-QUERY-EXT-CTRL;.
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</para>
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</listitem>
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</orderedlist>
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</section>
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<section id="other">
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<title>Relation of V4L2 to other Linux multimedia APIs</title>
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@@ -29,9 +29,12 @@ can suspend execution until the driver has captured data or is ready
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to accept data for output.</para>
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<para>When streaming I/O has been negotiated this function waits
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until a buffer has been filled or displayed and can be dequeued with
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the &VIDIOC-DQBUF; ioctl. When buffers are already in the outgoing
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queue of the driver the function returns immediately.</para>
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until a buffer has been filled by the capture device and can be dequeued
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with the &VIDIOC-DQBUF; ioctl. For output devices this function waits
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until the device is ready to accept a new buffer to be queued up with
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the &VIDIOC-QBUF; ioctl for display. When buffers are already in the outgoing
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queue of the driver (capture) or the incoming queue isn't full (display)
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the function returns immediately.</para>
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<para>On success <function>poll()</function> returns the number of
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file descriptors that have been selected (that is, file descriptors
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@@ -44,10 +47,22 @@ Capture devices set the <constant>POLLIN</constant> and
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flags. When the function timed out it returns a value of zero, on
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failure it returns <returnvalue>-1</returnvalue> and the
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<varname>errno</varname> variable is set appropriately. When the
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application did not call &VIDIOC-QBUF; or &VIDIOC-STREAMON; yet the
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application did not call &VIDIOC-STREAMON; the
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<function>poll()</function> function succeeds, but sets the
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<constant>POLLERR</constant> flag in the
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<structfield>revents</structfield> field.</para>
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<structfield>revents</structfield> field. When the
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application has called &VIDIOC-STREAMON; for a capture device but hasn't
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yet called &VIDIOC-QBUF;, the <function>poll()</function> function
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succeeds and sets the <constant>POLLERR</constant> flag in the
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<structfield>revents</structfield> field. For output devices this
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same situation will cause <function>poll()</function> to succeed
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as well, but it sets the <constant>POLLOUT</constant> and
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<constant>POLLWRNORM</constant> flags in the <structfield>revents</structfield>
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field.</para>
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<para>If an event occurred (see &VIDIOC-DQEVENT;) then
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<constant>POLLPRI</constant> will be set in the <structfield>revents</structfield>
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field and <function>poll()</function> will return.</para>
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<para>When use of the <function>read()</function> function has
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been negotiated and the driver does not capture yet, the
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@@ -58,10 +73,18 @@ continuously (as opposed to, for example, still images) the function
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may return immediately.</para>
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<para>When use of the <function>write()</function> function has
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been negotiated the <function>poll</function> function just waits
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been negotiated and the driver does not stream yet, the
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<function>poll</function> function starts streaming. When that fails
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it returns a <constant>POLLERR</constant> as above. Otherwise it waits
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until the driver is ready for a non-blocking
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<function>write()</function> call.</para>
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<para>If the caller is only interested in events (just
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<constant>POLLPRI</constant> is set in the <structfield>events</structfield>
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field), then <function>poll()</function> will <emphasis>not</emphasis>
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start streaming if the driver does not stream yet. This makes it
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possible to just poll for events and not for buffers.</para>
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<para>All drivers implementing the <function>read()</function> or
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<function>write()</function> function or streaming I/O must also
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support the <function>poll()</function> function.</para>
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@@ -152,10 +152,11 @@ structs, ioctls) must be noted in more detail in the history chapter
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applications. -->
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<revision>
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<revnumber>3.16</revnumber>
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<date>2014-05-27</date>
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<authorinitials>lp</authorinitials>
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<revremark>Extended &v4l2-pix-format;. Added format flags.
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<revnumber>3.17</revnumber>
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<date>2014-08-04</date>
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<authorinitials>lp, hv</authorinitials>
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<revremark>Extended &v4l2-pix-format;. Added format flags. Added compound control types
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and VIDIOC_QUERY_EXT_CTRL.
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</revremark>
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</revision>
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@@ -538,7 +539,7 @@ and discussions on the V4L mailing list.</revremark>
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</partinfo>
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<title>Video for Linux Two API Specification</title>
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<subtitle>Revision 3.14</subtitle>
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<subtitle>Revision 3.17</subtitle>
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<chapter id="common">
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&sub-common;
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@@ -119,7 +119,7 @@
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</row>
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<row>
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<entry>&v4l2-rect;</entry>
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<entry><structfield>rect</structfield></entry>
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<entry><structfield>r</structfield></entry>
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<entry>Selection rectangle, in pixels.</entry>
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</row>
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<row>
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