Patch "arm64: dts: qcom: qrb2210-rb1: disable cluster power domains" has been added to the 6.8-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    arm64: dts: qcom: qrb2210-rb1: disable cluster power domains

to the 6.8-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     arm64-dts-qcom-qrb2210-rb1-disable-cluster-power-dom.patch
and it can be found in the queue-6.8 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit eada660d63e97d5a2444a20fd1fdcb62c46d72fb
Author: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Date:   Tue Jan 30 18:48:08 2024 +0200

    arm64: dts: qcom: qrb2210-rb1: disable cluster power domains
    
    [ Upstream commit 7f492d48f08207e4ee23edc926b11de9f720aa61 ]
    
    If cluster domain idle state is enabled on the RB1, the board becomes
    significantly less responsive. Under certain circumstances (if some of
    the devices are disabled in kernel config) the board can even lock up.
    
    It seems this is caused by the MPM not updating wakeup timer during CPU
    idle (in the same way the RPMh updates it when cluster idle state is
    entered).
    
    Disable cluster domain idle for the RB1 board until MPM driver is fixed
    to cooperate with the CPU idle states.
    
    Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240130-rb1-suspend-cluster-v2-1-5bc1109b0869@xxxxxxxxxx
    Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index 64b2ab2862793..6e9dd0312adc5 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -177,6 +177,24 @@ vph_pwr: regulator-vph-pwr {
 	};
 };
 
+&CPU_PD0 {
+	/delete-property/ power-domains;
+};
+
+&CPU_PD1 {
+	/delete-property/ power-domains;
+};
+
+&CPU_PD2 {
+	/delete-property/ power-domains;
+};
+
+&CPU_PD3 {
+	/delete-property/ power-domains;
+};
+
+/delete-node/ &CLUSTER_PD;
+
 &gpi_dma0 {
 	status = "okay";
 };