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| author | Fabien Parent <fabien.parent@linaro.org> | 2024-09-04 20:26:55 +0200 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2024-09-04 22:36:17 +0200 |
| commit | d92e9ea2f0f918d7b01cbacb838288bffccc8954 (patch) | |
| tree | c5d9919ecdbf8c072bdfd9e961d1e175a8b2fc8b /arch | |
| parent | arm64: dts: qcom: x1e80100: Fix Adreno SMMU global interrupt (diff) | |
| download | linux-d92e9ea2f0f918d7b01cbacb838288bffccc8954.tar.xz linux-d92e9ea2f0f918d7b01cbacb838288bffccc8954.zip | |
arm64: dts: qcom: msm8939: revert use of APCS mbox for RPM
Commit 22e4e43484c4 ("arm64: dts: qcom: msm8939: Use mboxes
properties for APCS") broke the boot on msm8939 platforms.
The issue comes from the SMD driver failing to request the mbox
channel because of circular dependencies:
1. rpm -> apcs1_mbox -> rpmcc (RPM_SMD_XO_CLK_SRC) -> rpm.
2. rpm -> apcs1_mbox -> gcc -> rpmcc (RPM_SMD_XO_CLK_SRC) -> rpm
3. rpm -> apcs1_mbox -> apcs2 -> gcc -> rpmcc (RPM_SMD_XO_CLK_SRC) -> rpm
To fix this issue let's switch back to using the deprecated
qcom,ipc property for the RPM node.
Fixes: 22e4e43484c4 ("arm64: dts: qcom: msm8939: Use mboxes properties for APCS")
Signed-off-by: Fabien Parent <fabien.parent@linaro.org>
Link: https://lore.kernel.org/r/20240904-msm8939-rpm-apcs-fix-v1-1-b608e7e48fe1@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8939.dtsi | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi index 46d9480cd464..39405713329b 100644 --- a/arch/arm64/boot/dts/qcom/msm8939.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi @@ -248,7 +248,7 @@ smd-edge { interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>; - mboxes = <&apcs1_mbox 0>; + qcom,ipc = <&apcs1_mbox 8 0>; qcom,smd-edge = <15>; rpm_requests: rpm-requests { |