* [PATCH] arm64: dts: qcom: sc7180: Support ETMv4 power management
@ 2020-04-24 11:16 Sai Prakash Ranjan
2020-04-25 19:39 ` Stephen Boyd
0 siblings, 1 reply; 2+ messages in thread
From: Sai Prakash Ranjan @ 2020-04-24 11:16 UTC (permalink / raw)
To: Mathieu Poirier, Suzuki K Poulose, Bjorn Andersson, Andy Gross,
devicetree, Stephen Boyd
Cc: Rajendra Nayak, Matthias Kaehlcke, linux-kernel, linux-arm-msm,
linux-arm-kernel, Sai Prakash Ranjan
Now that deep idle states are properly supported on SC7180,
we need to add "coresight-loses-context-with-cpu" property
to avoid failure of trace session because of losing context
on entering deep idle states.
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
---
arch/arm64/boot/dts/qcom/sc7180.dtsi | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 4216b574c080..cab86194a870 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1621,6 +1621,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1639,6 +1640,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1657,6 +1659,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1675,6 +1678,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1693,6 +1697,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1711,6 +1716,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1729,6 +1735,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
@@ -1747,6 +1754,7 @@
clocks = <&aoss_qmp>;
clock-names = "apb_pclk";
+ arm,coresight-loses-context-with-cpu;
out-ports {
port {
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] arm64: dts: qcom: sc7180: Support ETMv4 power management
2020-04-24 11:16 [PATCH] arm64: dts: qcom: sc7180: Support ETMv4 power management Sai Prakash Ranjan
@ 2020-04-25 19:39 ` Stephen Boyd
0 siblings, 0 replies; 2+ messages in thread
From: Stephen Boyd @ 2020-04-25 19:39 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Mathieu Poirier, Sai Prakash Ranjan,
Suzuki K Poulose, devicetree
Cc: Rajendra Nayak, Matthias Kaehlcke, linux-kernel, linux-arm-msm,
linux-arm-kernel, Sai Prakash Ranjan
Quoting Sai Prakash Ranjan (2020-04-24 04:16:44)
> Now that deep idle states are properly supported on SC7180,
> we need to add "coresight-loses-context-with-cpu" property
> to avoid failure of trace session because of losing context
> on entering deep idle states.
>
> Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
> ---
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
^ permalink raw reply [flat|nested] 2+ messages in thread
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