linux-kernel - [PATCH] arm64: dts: qcom: add IPA qcom,qmp property

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Date:   Thu, 21 Apr 2022 16:59:53 -0500
From:   Alex Elder <elder@...aro.org>
To:     stable@...r.kernel.org
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        davem@...emloft.net, elder@...aro.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: add IPA qcom,qmp property

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@...r.kernel.org>	# 5.17.x
Fixes: 1aac309d3207 ("net: ipa: use autosuspend")
Signed-off-by: Alex Elder <elder@...aro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Link: https://lore.kernel.org/r/20220201140723.467431-1-elder@linaro.org
---
The code for this feature was included in the v5.17 cycle, but the
DTS file updates were not accepted until v5.18-rc1.

 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 2151cd8c8c7ab..e1c46b80f14a0 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1459,6 +1459,8 @@ ipa: ipa@...0000 {
 					     "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 eab7a85050531..d66865131ef90 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -1714,6 +1714,8 @@ ipa: ipa@...0000 {
 			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 765d018e6306c..0bde6bbb3bc74 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -1443,6 +1443,8 @@ ipa: ipa@...0000 {
 			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