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Filename Latest commit message Latest commit date
Jerome Brunet 973900cd46 ASoC: meson: axg-tdm-interface: fix loopback 
commit 671ee4db952449acde126965bf76817a3159040d upstream.

When the axg-tdm-interface was introduced, the backend DAI was marked as an
endpoint when DPCM was walking the DAPM graph to find a its BE.

It is no longer the case since this
commit 8dd26dff00 ("ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks")
Because of this, when DPCM finds a BE it does everything it needs on the
DAIs but it won't power up the widgets between the FE and the BE if there
is no actual endpoint after the BE.

On meson-axg HWs, the loopback is a special DAI of the tdm-interface BE.
It is only linked to the dummy codec since there no actual HW after it.
>From the DAPM perspective, the DAI has no endpoint. Because of this, the TDM
decoder, which is a widget between the FE and BE is not powered up.

>From the user perspective, everything seems fine but no data is produced.

Connecting the Loopback DAI to a dummy DAPM endpoint solves the problem.

Fixes: 8dd26dff00 ("ASoC: dapm: Fix handling of custom_stop_condition on DAPM graph walks")
Cc: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20201217150812.3247405-1-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-19 18:26:16 +01:00
arch ARM: picoxcell: fix missing interrupt-parent properties 2021-01-19 18:26:16 +01:00
block bfq: Fix computation of shallow depth 2021-01-19 18:26:15 +01:00
certs
crypto
Documentation
drivers drm/msm: Call msm_init_vram before binding the gpu 2021-01-19 18:26:16 +01:00
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include ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI 2021-01-19 18:26:16 +01:00
init
ipc
kernel
lib lib/raid6: Let $(UNROLL) rules work with macOS userland 2021-01-19 18:26:15 +01:00
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security dump_common_audit_data(): fix racy accesses to ->d_name 2021-01-19 18:26:16 +01:00
sound ASoC: meson: axg-tdm-interface: fix loopback 2021-01-19 18:26:16 +01:00
tools perf intel-pt: Fix 'CPU too large' error 2021-01-19 18:26:16 +01:00
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README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.