[RFC PATCH 1/2] dt-bindings: soc: qcom: Add SDPM clock monitor driver documentation in yaml

From: Manaf Meethalavalappu Pallikunhi
Date: Fri Apr 02 2021 - 03:02:36 EST


Add yaml documentation for SDPM clock monitor driver which will
register for clock rate change notification and writes the clock rate
into SDPM CSR register.

Signed-off-by: Ram Chandrasekar <rkumbako@xxxxxxxxxxxxxx>
Signed-off-by: Manaf Meethalavalappu Pallikunhi <manafm@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/soc/qcom/qcom-sdpm.yaml | 68 ++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom-sdpm.yaml

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom-sdpm.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom-sdpm.yaml
new file mode 100644
index 00000000..20df362
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom-sdpm.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom-sdpm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Simple Digital Power Meter(SDPM) clock monitoring
+
+maintainers:
+ - Manaf Meethalavalappu Pallikunhi <manafm@xxxxxxxxxxxxxx>
+ - Ram Chandrasekar <rkumbako@xxxxxxxxxxxxxx>
+
+description: |
+
+ SDPM is used to monitor the operating frequency of different clocks and based
+ on operating levels of different clients, RDPM (Rail Digital Power Meter)
+ hardware estimates total power consumption of a shared railway. The SDPM
+ clock monitor driver will register with the clock framework for rate change
+ notification of different clocks. These clock rate will be updated to SDPM.
+
+properties:
+ compatible:
+ enum:
+ - qcom,sdpm
+
+ reg:
+ items:
+ - description: RDPM hardware base address
+
+ clocks:
+ items:
+ minItems: 1
+ maxItems: 8
+ description: Different clock source
+
+ clock-names:
+ items:
+ minItems: 1
+ maxItems: 8
+ description: Different clock source name
+
+ csr-id:
+ $ref: '/schemas/types.yaml#/definitions/uint32-array'
+ description: SDPM CSR IDs matching the clock order mentioned in the
+ clocks property.
+ minItems: 1
+ maxItems: 8
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - csr-id
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,camcc-sc7280.h>
+ #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+ cx_sdpm@634000 {
+ compatible = "qcom,sdpm";
+ reg = <0x634000 0x1000>;
+ clocks = <&clock_camcc CAM_CC_IPE_0_CLK_SRC>,
+ <&clock_gcc GCC_GP1_CLK_SRC>;
+ clock-names = "cam_cc_ipe", "gcc_gp1";
+ csr-id = <5 7>;
+ };
+...
--
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