commit 73419e4d2fd1b838fcb1df6a978d67b3ae1c5c01 upstream.

At least three platforms require the "qcom,qmp" property to be
specified, so the IPA driver can request register retention across
power collapse.  Update DTS files accordingly.

Cc: <stable@vger.kernel.org>    # 5.15.x
Fixes: 1aac309d3207 ("net: ipa: use autosuspend")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220201140723.467431-1-elder@linaro.org
---
Enable this feature, now that 8ff8bdb8c92d6 ("net: ipa: request IPA
register values be retained") has been accepted into linux-5.15.y.

 arch/arm64/boot/dts/qcom/sc7180.dtsi | 2 ++
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 2 ++
 arch/arm64/boot/dts/qcom/sm8350.dtsi | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 495c15deacb7d..de86ae3a7fd27 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1460,6 +1460,8 @@ ipa: ipa@1e40000 {
 					     "imem",
 					     "config";
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&ipa_smp2p_out 0>,
 					   <&ipa_smp2p_out 1>;
 			qcom,smem-state-names = "ipa-clock-enabled-valid",
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 692973c4f4344..b795a9993cc1b 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -615,6 +615,8 @@ ipa: ipa@1e40000 {
 			interconnect-names = "memory",
 					     "config";
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&ipa_smp2p_out 0>,
 					   <&ipa_smp2p_out 1>;
 			qcom,smem-state-names = "ipa-clock-enabled-valid",
diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index 3d32d55818168..9ffb7355850c7 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -736,6 +736,8 @@ ipa: ipa@1e40000 {
 			interconnect-names = "memory",
 					     "config";
 
+			qcom,qmp = <&aoss_qmp>;
+
 			qcom,smem-states = <&ipa_smp2p_out 0>,
 					   <&ipa_smp2p_out 1>;
 			qcom,smem-state-names = "ipa-clock-enabled-valid",
-- 
2.32.0

On Thu, Apr 21, 2022 at 05:00:11PM -0500, Alex Elder wrote:
> commit 73419e4d2fd1b838fcb1df6a978d67b3ae1c5c01 upstream.
> 
> At least three platforms require the "qcom,qmp" property to be
> specified, so the IPA driver can request register retention across
> power collapse.  Update DTS files accordingly.
> 
> Cc: <stable@vger.kernel.org>    # 5.15.x
> Fixes: 1aac309d3207 ("net: ipa: use autosuspend")
> Signed-off-by: Alex Elder <elder@linaro.org>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> Link: https://lore.kernel.org/r/20220201140723.467431-1-elder@linaro.org
> ---
> Enable this feature, now that 8ff8bdb8c92d6 ("net: ipa: request IPA
> register values be retained") has been accepted into linux-5.15.y.

Both now queued up, thanks.

greg k-h