Unverified Commit 1f05252a authored by Mark Brown's avatar Mark Brown
Browse files

Add bridged amplifiers to cs42l43 

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

In some cs42l43 systems a couple of cs35l56 amplifiers are attached
to the cs42l43's SPI and I2S. On Windows the cs42l43 is controlled
by a SDCA class driver and these two amplifiers are controlled by
firmware running on the cs42l43. However, under Linux the decision
was made to interact with the cs42l43 directly, affording the user
greater control over the audio system. However, this has resulted
in an issue where these two bridged cs35l56 amplifiers are not
populated in ACPI and must be added manually. There is at least an
SDCA extension unit DT entry we can key off.

The process of adding this is handled using a software node, firstly the
ability to add native chip selects to software nodes must be added.
Secondly, an additional flag for naming the SPI devices is added this
allows the machine driver to key to the correct amplifier. Then finally,
the cs42l43 SPI driver adds the two amplifiers directly onto its SPI
bus.

An additional series will follow soon to add the audio machine driver
parts (in the sof-sdw driver), however that is fairly orthogonal to
this part of the process, getting the actual amplifiers registered.
parents 351007b0 439fbc97

.mailmap

+9 −2
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ Adam Oldham <oldhamca@gmail.com> 
Adam Radford <aradford@gmail.com>

Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>

Adrian Bunk <bunk@stusta.de>

Ajay Kaher <ajay.kaher@broadcom.com> <akaher@vmware.com>

Akhil P Oommen <quic_akhilpo@quicinc.com> <akhilpo@codeaurora.org>

Alan Cox <alan@lxorguk.ukuu.org.uk>

Alan Cox <root@hraefn.swansea.linux.org.uk>
@@ -36,6 +37,7 @@ Alexei Avshalom Lazar <quic_ailizaro@quicinc.com> <ailizaro@codeaurora.org> 
Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>

Alexei Starovoitov <ast@kernel.org> <ast@fb.com>

Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>

Alexey Makhalov <alexey.amakhalov@broadcom.com> <amakhalov@vmware.com>

Alex Hung <alexhung@gmail.com> <alex.hung@canonical.com>

Alex Shi <alexs@kernel.org> <alex.shi@intel.com>

Alex Shi <alexs@kernel.org> <alex.shi@linaro.org>
@@ -110,6 +112,7 @@ Brendan Higgins <brendan.higgins@linux.dev> <brendanhiggins@google.com> 
Brian Avery <b.avery@hp.com>

Brian King <brking@us.ibm.com>

Brian Silverman <bsilver16384@gmail.com> <brian.silverman@bluerivertech.com>

Bryan Tan <bryan-bt.tan@broadcom.com> <bryantan@vmware.com>

Cai Huoqing <cai.huoqing@linux.dev> <caihuoqing@baidu.com>

Can Guo <quic_cang@quicinc.com> <cang@codeaurora.org>

Carl Huang <quic_cjhuang@quicinc.com> <cjhuang@codeaurora.org>
@@ -340,7 +343,8 @@ Lee Jones <lee@kernel.org> <joneslee@google.com> 
Lee Jones <lee@kernel.org> <lee.jones@canonical.com>

Lee Jones <lee@kernel.org> <lee.jones@linaro.org>

Lee Jones <lee@kernel.org> <lee@ubuntu.com>

Leonard Crestez <leonard.crestez@nxp.com> Leonard Crestez <cdleonard@gmail.com>

Leonard Crestez <cdleonard@gmail.com> <leonard.crestez@nxp.com>

Leonard Crestez <cdleonard@gmail.com> <leonard.crestez@intel.com>

Leonardo Bras <leobras.c@gmail.com> <leonardo@linux.ibm.com>

Leonard Göhrs <l.goehrs@pengutronix.de>

Leonid I Ananiev <leonid.i.ananiev@intel.com>
@@ -497,7 +501,8 @@ Prasad Sodagudi <quic_psodagud@quicinc.com> <psodagud@codeaurora.org> 
Punit Agrawal <punitagrawal@gmail.com> <punit.agrawal@arm.com>

Qais Yousef <qyousef@layalina.io> <qais.yousef@imgtec.com>

Qais Yousef <qyousef@layalina.io> <qais.yousef@arm.com>

Quentin Monnet <quentin@isovalent.com> <quentin.monnet@netronome.com>

Quentin Monnet <qmo@kernel.org> <quentin.monnet@netronome.com>

Quentin Monnet <qmo@kernel.org> <quentin@isovalent.com>

Quentin Perret <qperret@qperret.net> <quentin.perret@arm.com>

Rafael J. Wysocki <rjw@rjwysocki.net> <rjw@sisk.pl>

Rajeev Nandan <quic_rajeevny@quicinc.com> <rajeevny@codeaurora.org>
@@ -527,6 +532,7 @@ Rocky Liao <quic_rjliao@quicinc.com> <rjliao@codeaurora.org> 
Roman Gushchin <roman.gushchin@linux.dev> <guro@fb.com>

Roman Gushchin <roman.gushchin@linux.dev> <guroan@gmail.com>

Roman Gushchin <roman.gushchin@linux.dev> <klamm@yandex-team.ru>

Ronak Doshi <ronak.doshi@broadcom.com> <doshir@vmware.com>

Muchun Song <muchun.song@linux.dev> <songmuchun@bytedance.com>

Muchun Song <muchun.song@linux.dev> <smuchun@gmail.com>

Ross Zwisler <zwisler@kernel.org> <ross.zwisler@linux.intel.com>
@@ -649,6 +655,7 @@ Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com> 
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>

Viresh Kumar <viresh.kumar@linaro.org> <viresh.kumar@linaro.org>

Viresh Kumar <viresh.kumar@linaro.org> <viresh.kumar@linaro.com>

Vishnu Dasa <vishnu.dasa@broadcom.com> <vdasa@vmware.com>

Vivek Aknurwar <quic_viveka@quicinc.com> <viveka@codeaurora.org>

Vivien Didelot <vivien.didelot@gmail.com> <vivien.didelot@savoirfairelinux.com>

Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>

Documentation/admin-guide/kernel-parameters.txt

+1 −1
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@@ -6599,7 +6599,7 @@ 
			To turn off having tracepoints sent to printk,

			 echo 0 > /proc/sys/kernel/tracepoint_printk

			Note, echoing 1 into this file without the

			tracepoint_printk kernel cmdline option has no effect.

			tp_printk kernel cmdline option has no effect.



			The tp_printk_stop_on_boot (see below) can also be used

			to stop the printing of events to console at

Documentation/admin-guide/mm/zswap.rst

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@@ -155,7 +155,7 @@ Setting this parameter to 100 will disable the hysteresis. 


Some users cannot tolerate the swapping that comes with zswap store failures

and zswap writebacks. Swapping can be disabled entirely (without disabling

zswap itself) on a cgroup-basis as follows:

zswap itself) on a cgroup-basis as follows::



	echo 0 > /sys/fs/cgroup/<cgroup-name>/memory.zswap.writeback
@@ -166,7 +166,7 @@ writeback (because the same pages might be rejected again and again). 
When there is a sizable amount of cold memory residing in the zswap pool, it

can be advantageous to proactively write these cold pages to swap and reclaim

the memory for other use cases. By default, the zswap shrinker is disabled.

User can enable it as follows:

User can enable it as follows::



  echo Y > /sys/module/zswap/parameters/shrinker_enabled

Documentation/arch/x86/resctrl.rst

+1 −1
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@@ -574,7 +574,7 @@ Memory b/w domain is L3 cache. 
	MB:<cache_id0>=bandwidth0;<cache_id1>=bandwidth1;...



Memory bandwidth Allocation specified in MiBps

---------------------------------------------

----------------------------------------------



Memory bandwidth domain is L3 cache.

::

Documentation/dev-tools/testing-overview.rst

+2 −0
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@@ -104,6 +104,8 @@ Some of these tools are listed below: 
  KASAN and can be used in production. See Documentation/dev-tools/kfence.rst

* lockdep is a locking correctness validator. See

  Documentation/locking/lockdep-design.rst

* Runtime Verification (RV) supports checking specific behaviours for a given

  subsystem. See Documentation/trace/rv/runtime-verification.rst

* There are several other pieces of debug instrumentation in the kernel, many

  of which can be found in lib/Kconfig.debug