linux-kernel - [PATCH v2 1/6] dt-bindings: soc: qcom: add On Chip MEMory (OCMEM) bindings

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Message-Id: <20190619023209.10036-2-masneyb@onstation.org>
Date:   Tue, 18 Jun 2019 22:32:04 -0400
From:   Brian Masney <masneyb@...tation.org>
To:     bjorn.andersson@...aro.org, agross@...nel.org,
        david.brown@...aro.org, robdclark@...il.com, sean@...rly.run,
        robh+dt@...nel.org
Cc:     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 v2 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>
---
Changes since v1:
- Rename qcom,ocmem-msm8974 to qcom,msm8974-ocmem
- Renamed reg-names to ctrl and mem
- update hardware description
- moved from soc to sram namespace in the device tree bindings

 .../bindings/sram/qcom/qcom,ocmem.yaml        | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sram/qcom/qcom,ocmem.yaml

diff --git a/Documentation/devicetree/bindings/sram/qcom/qcom,ocmem.yaml b/Documentation/devicetree/bindings/sram/qcom/qcom,ocmem.yaml
new file mode 100644
index 000000000000..1bd15824968e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/qcom/qcom,ocmem.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sram/qcom/qcom,ocmem.yaml#
+$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) is typically used by the GPU, camera/video, and
+  audio components on some Snapdragon SoCs.
+
+properties:
+  compatible:
+    const: qcom,msm8974-ocmem
+
+  reg:
+    items:
+      - description: Control registers
+      - description: OCMEM address range
+
+  reg-names:
+    items:
+      - const: ctrl
+      - const: mem
+
+  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,msm8974-ocmem";
+
+        reg = <0xfdd00000 0x2000>,
+              <0xfec00000 0x180000>;
+        reg-names = "ctrl",
+                    "mem";
+
+        clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
+                 <&mmcc OCMEMCX_OCMEMNOC_CLK>;
+        clock-names = "core",
+                      "iface";
+      };
-- 
2.20.1