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| author | Marc Gonzalez <mgonzalez@freebox.fr> | 2024-04-29 16:04:51 +0200 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2024-05-13 17:15:47 +0300 |
| commit | 71b6e321e30271beb08772871c4f76777f49e402 (patch) | |
| tree | 6c975d24a88a18933d60c0b926e8134f1eb51526 /Documentation/devicetree/bindings/net/wireless | |
| parent | 3b9344740843d965e9e37fba30620b3b1c0afa4f (diff) | |
| download | linux-stable-71b6e321e30271beb08772871c4f76777f49e402.tar.gz linux-stable-71b6e321e30271beb08772871c4f76777f49e402.tar.bz2 linux-stable-71b6e321e30271beb08772871c4f76777f49e402.zip | |
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
Diffstat (limited to 'Documentation/devicetree/bindings/net/wireless')
| -rw-r--r-- | Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml index 5c4498b762c8..070c4c9b8643 100644 --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.yaml @@ -128,6 +128,11 @@ properties: Whether to skip executing an SCM call that reassigns the memory region ownership. + qcom,no-msa-ready-indicator: + type: boolean + description: + Don't wait for MSA_READY indicator to complete init. + qcom,smem-states: $ref: /schemas/types.yaml#/definitions/phandle-array description: State bits used by the AP to signal the WLAN Q6. |