From 2a807b1b4e7e401bdc9be0b66eb979fe4bba434d Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Wed, 24 Jul 2019 23:31:08 -0700 Subject: 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 Acked-by: Rob Herring Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation/devicetree/bindings/net') 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: + Definition: Quirk specifying that the firmware expects the 8bit version + of the host capability QMI request + Example (to supply PCI based wifi block details): -- cgit v1.2.3