From 8e24a29620317012bf271d35692a5bab52831be1 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Mon, 4 Oct 2021 22:49:48 +0200 Subject: dt-bindings: arm: cpus: Document qcom,msm8916-smp enable-method Since MSM8916 is an ARM v8 64-bit SoC the CPU cores are normally booted using "psci" or "spin-table". Unfortunately, some devices come with signed 32-bit-only firmware without ARM64 and PSCI support. This setup is easy to support since it's very similar to older 32-bit only Qualcomm SoCs (e.g. MSM8226) and only requires adding a few new definitions to already existing drivers. Document the qcom,msm8916-smp enable-method. It is actually just an alias of qcom,msm8226-smp since it should be implemented identically. The enable-method is only valid on ARM32 and must not be used on ARM64. Signed-off-by: Stephan Gerhold Reviewed-by: Rob Herring Signed-off-by: Bjorn Andersson Link: https://lore.kernel.org/r/20211004204955.21077-8-stephan@gerhold.net --- Documentation/devicetree/bindings/arm/cpus.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation/devicetree/bindings/arm/cpus.yaml') diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml index 6a1e3d455897..cd52f5c9b762 100644 --- a/Documentation/devicetree/bindings/arm/cpus.yaml +++ b/Documentation/devicetree/bindings/arm/cpus.yaml @@ -210,6 +210,8 @@ properties: - qcom,kpss-acc-v1 - qcom,kpss-acc-v2 - qcom,msm8226-smp + # Only valid on ARM 32-bit, see above for ARM v8 64-bit + - qcom,msm8916-smp - renesas,apmu - renesas,r9a06g032-smp - rockchip,rk3036-smp @@ -294,7 +296,8 @@ properties: Specifies the ACC* node associated with this CPU. Required for systems that have an "enable-method" property - value of "qcom,kpss-acc-v1", "qcom,kpss-acc-v2" or "qcom,msm8226-smp" + value of "qcom,kpss-acc-v1", "qcom,kpss-acc-v2", "qcom,msm8226-smp" or + "qcom,msm8916-smp". * arm/msm/qcom,kpss-acc.txt -- cgit