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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-07-25 09:31:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-29 12:09:41 +0300 |
| commit | 2a807b1b4e7e401bdc9be0b66eb979fe4bba434d (patch) | |
| tree | bf09e24712cebe98b7f49decec5545e998de875a /Documentation/devicetree/bindings/net | |
| parent | 0126be140997f6d8080511c0dbbe9360b5632057 (diff) | |
| download | linux-2a807b1b4e7e401bdc9be0b66eb979fe4bba434d.tar.xz | |
ath10k: Fix HOST capability QMI incompatibility
commit 7165ef890a4c44cf16db66b82fd78448f4bde6ba upstream.
The introduction of 768ec4c012ac ("ath10k: update HOST capability QMI
message") served the purpose of supporting the new and extended HOST
capability QMI message.
But while the new message adds a slew of optional members it changes the
data type of the "daemon_support" member, which means that older
versions of the firmware will fail to decode the incoming request
message.
There is no way to detect this breakage from Linux and there's no way to
recover from sending the wrong message (i.e. we can't just try one
format and then fallback to the other), so a quirk is introduced in
DeviceTree to indicate to the driver that the firmware requires the 8bit
version of this message.
Cc: stable@vger.kernel.org
Fixes: 768ec4c012ac ("ath10k: update HOST capability qmi message")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/net')
| -rw-r--r-- | Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt index ae661e65354e..f9499b20d840 100644 --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt @@ -81,6 +81,12 @@ Optional properties: Definition: Name of external front end module used. Some valid FEM names for example: "microsemi-lx5586", "sky85703-11" and "sky85803" etc. +- qcom,snoc-host-cap-8bit-quirk: + Usage: Optional + Value type: <empty> + Definition: Quirk specifying that the firmware expects the 8bit version + of the host capability QMI request + Example (to supply PCI based wifi block details): |