Add device tree bindings for the On Chip Memory (OCMEM) that is present on some Qualcomm Snapdragon SoCs. Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx> --- .../bindings/soc/qcom/qcom,ocmem.yaml | 66 +++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,ocmem.yaml diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,ocmem.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,ocmem.yaml new file mode 100644 index 000000000000..5e3ae6311a16 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,ocmem.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/qcom/qcom,ocmem.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: On Chip Memory (OCMEM) that is present on some Qualcomm Snapdragon SoCs. + +maintainers: + - Brian Masney <masneyb@xxxxxxxxxxxxx> + +description: | + The On Chip Memory (OCMEM) allocator allows various clients to allocate memory + from OCMEM based on performance, latency and power requirements. This is + typically used by the GPU, camera/video, and audio components on some + Snapdragon SoCs. + +properties: + compatible: + const: qcom,ocmem-msm8974 + + reg: + items: + - description: Control registers + - description: OCMEM address range + + reg-names: + items: + - const: ocmem_ctrl_physical + - const: ocmem_physical + + clocks: + items: + - description: Core clock + - description: Interface clock + + clock-names: + items: + - const: core + - const: iface + +required: + - compatible + - reg + - reg-names + - clocks + - clock-names + +examples: + - | + #include <dt-bindings/clock/qcom,rpmcc.h> + #include <dt-bindings/clock/qcom,mmcc-msm8974.h> + + ocmem: ocmem@fdd00000 { + compatible = "qcom,ocmem-msm8974"; + + reg = <0xfdd00000 0x2000>, + <0xfec00000 0x180000>; + reg-names = "ocmem_ctrl_physical", + "ocmem_physical"; + + clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>, + <&mmcc OCMEMCX_OCMEMNOC_CLK>; + clock-names = "core", + "iface"; + }; -- 2.20.1
