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Marc Gonzalez 71b6e321e3 dt-bindings: net: wireless: ath10k: add qcom,no-msa-ready-indicator prop
The ath10k driver waits for an "MSA_READY" indicator
to complete initialization. If the indicator is not
received, then the device remains unusable.

cf. ath10k_qmi_driver_event_work()

Several msm8998-based devices are affected by this issue.
Oddly, it seems safe to NOT wait for the indicator, and
proceed immediately when QMI_EVENT_SERVER_ARRIVE.

Jeff Johnson wrote:

  The feedback I received was "it might be ok to change all ath10k qmi
  to skip waiting for msa_ready", and it was pointed out that ath11k
  (and ath12k) do not wait for it.

  However with so many deployed devices, "might be ok" isn't a strong
  argument for changing the default behavior.

Kalle Valo first suggested setting a bit in firmware-5.bin to trigger
work-around in the driver. However, firmware-5.bin is parsed too late.
So we are stuck with a DT property.

Signed-off-by: Marc Gonzalez <mgonzalez@freebox.fr>
Reviewed-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/54ac2295-36b4-49fc-9583-a10db8d9d5d6@freebox.fr
History 2024-05-13 17:15:47 +03:00
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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 reStructuredText 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.