linux-kernel - [PATCH 1/6] dt-bindings: soc: qcom: add On Chip MEMory (OCMEM) bindings

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Date:   Sun, 16 Jun 2019 09:29:25 -0400
From:   Brian Masney <masneyb@...tation.org>
To:     agross@...nel.org, david.brown@...aro.org, robdclark@...il.com,
        sean@...rly.run, robh+dt@...nel.org
Cc:     bjorn.andersson@...aro.org, airlied@...ux.ie, daniel@...ll.ch,
        mark.rutland@....com, jonathan@...ek.ca,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        devicetree@...r.kernel.org
Subject: [PATCH 1/6] dt-bindings: soc: qcom: add On Chip MEMory (OCMEM) bindings

Add device tree bindings for the On Chip Memory (OCMEM) that is present
on some Qualcomm Snapdragon SoCs.

Signed-off-by: Brian Masney <masneyb@...tation.org>
---
 .../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@...tation.org>
+
+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@...00000 {
+        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