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Message-Id: <20190626022148.23712-2-masneyb@onstation.org>
Date: Tue, 25 Jun 2019 22:21:43 -0400
From: Brian Masney <masneyb@...tation.org>
To: agross@...nel.org, robdclark@...il.com, sean@...rly.run,
robh+dt@...nel.org, bjorn.andersson@...aro.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,
jcrouse@...eaurora.org
Subject: [PATCH v3 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 v2:
- Add *-sram node and gmu-sram to example.
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 | 84 +++++++++++++++++++
1 file changed, 84 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..a0bf0af4860a
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/qcom/qcom,ocmem.yaml
@@ -0,0 +1,84 @@
+# 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
+
+patternProperties:
+ "^.+-sram$":
+ type: object
+ description: |
+ A region of reserved memory.
+
+ properties:
+ reg:
+ maxItems: 1
+
+ required:
+ - reg
+
+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";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ gmu-sram@0 {
+ reg = <0x0 0x100000>;
+ };
+ };
--
2.20.1
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