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Message-Id: <20191014102308.27441-4-tdas@codeaurora.org>
Date: Mon, 14 Oct 2019 15:53:06 +0530
From: Taniya Das <tdas@...eaurora.org>
To: Stephen Boyd <sboyd@...nel.org>,
Michael Turquette <mturquette@...libre.com>
Cc: David Brown <david.brown@...aro.org>,
Rajendra Nayak <rnayak@...eaurora.org>,
linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, robh@...nel.org, robh+dt@...nel.org,
Taniya Das <tdas@...eaurora.org>
Subject: [PATCH v4 3/5] dt-bindings: clock: Add YAML schemas for the QCOM GCC clock bindings
The GCC clock provider have a bunch of generic properties that
are needed in a device tree. Add a YAML schemas for those.
Signed-off-by: Taniya Das <tdas@...eaurora.org>
---
.../devicetree/bindings/clock/qcom,gcc.txt | 94 ----------
.../devicetree/bindings/clock/qcom,gcc.yaml | 174 ++++++++++++++++++
2 files changed, 174 insertions(+), 94 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/clock/qcom,gcc.txt
create mode 100644 Documentation/devicetree/bindings/clock/qcom,gcc.yaml
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.txt b/Documentation/devicetree/bindings/clock/qcom,gcc.txt
deleted file mode 100644
index d14362ad4132..000000000000
--- a/Documentation/devicetree/bindings/clock/qcom,gcc.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-Qualcomm Global Clock & Reset Controller Binding
-------------------------------------------------
-
-Required properties :
-- compatible : shall contain only one of the following:
-
- "qcom,gcc-apq8064"
- "qcom,gcc-apq8084"
- "qcom,gcc-ipq8064"
- "qcom,gcc-ipq4019"
- "qcom,gcc-ipq8074"
- "qcom,gcc-msm8660"
- "qcom,gcc-msm8916"
- "qcom,gcc-msm8960"
- "qcom,gcc-msm8974"
- "qcom,gcc-msm8974pro"
- "qcom,gcc-msm8974pro-ac"
- "qcom,gcc-msm8994"
- "qcom,gcc-msm8996"
- "qcom,gcc-msm8998"
- "qcom,gcc-mdm9615"
- "qcom,gcc-qcs404"
- "qcom,gcc-sdm630"
- "qcom,gcc-sdm660"
- "qcom,gcc-sdm845"
- "qcom,gcc-sm8150"
-
-- reg : shall contain base register location and length
-- #clock-cells : shall contain 1
-- #reset-cells : shall contain 1
-
-Optional properties :
-- #power-domain-cells : shall contain 1
-- Qualcomm TSENS (thermal sensor device) on some devices can
-be part of GCC and hence the TSENS properties can also be
-part of the GCC/clock-controller node.
-For more details on the TSENS properties please refer
-Documentation/devicetree/bindings/thermal/qcom-tsens.txt
-- protected-clocks : Protected clock specifier list as per common clock
- binding.
-
-For SM8150 only:
- - clocks: a list of phandles and clock-specifier pairs,
- one for each entry in clock-names.
- - clock-names: "bi_tcxo" (required)
- "sleep_clk" (optional)
- "aud_ref_clock" (optional)
-
-Example:
- clock-controller@...000 {
- compatible = "qcom,gcc-msm8960";
- reg = <0x900000 0x4000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- #power-domain-cells = <1>;
- };
-
-Example of GCC with TSENS properties:
- clock-controller@...000 {
- compatible = "qcom,gcc-apq8064";
- reg = <0x00900000 0x4000>;
- nvmem-cells = <&tsens_calib>, <&tsens_backup>;
- nvmem-cell-names = "calib", "calib_backup";
- #clock-cells = <1>;
- #reset-cells = <1>;
- #thermal-sensor-cells = <1>;
- };
-
-Example of GCC with protected-clocks properties:
- clock-controller@...000 {
- compatible = "qcom,gcc-sdm845";
- reg = <0x100000 0x1f0000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- #power-domain-cells = <1>;
- protected-clocks = <GCC_QSPI_CORE_CLK>,
- <GCC_QSPI_CORE_CLK_SRC>,
- <GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
- <GCC_LPASS_Q6_AXI_CLK>,
- <GCC_LPASS_SWAY_CLK>;
- };
-
-Example of GCC with clocks
- gcc: clock-controller@...000 {
- compatible = "qcom,gcc-sm8150";
- reg = <0x00100000 0x1f0000>;
- #clock-cells = <1>;
- #reset-cells = <1>;
- #power-domain-cells = <1>;
- clock-names = "bi_tcxo",
- "sleep_clk";
- clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
- <&sleep_clk>;
- };
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
new file mode 100644
index 000000000000..b3ef1e24e91a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc.yaml
@@ -0,0 +1,174 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bindings/clock/qcom,gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding
+
+maintainers:
+ - Stephen Boyd <sboyd@...nel.org>
+ - Taniya Das <tdas@...eaurora.org>
+
+description: |
+ Qualcomm global clock control module which supports the clocks, resets and
+ power domains.
+
+properties:
+ compatible :
+ enum:
+ - qcom,gcc-apq8064
+ - qcom,gcc-apq8084
+ - qcom,gcc-ipq8064
+ - qcom,gcc-ipq4019
+ - qcom,gcc-ipq8074
+ - qcom,gcc-msm8660
+ - qcom,gcc-msm8916
+ - qcom,gcc-msm8960
+ - qcom,gcc-msm8974
+ - qcom,gcc-msm8974pro
+ - qcom,gcc-msm8974pro-ac
+ - qcom,gcc-msm8994
+ - qcom,gcc-msm8996
+ - qcom,gcc-msm8998
+ - qcom,gcc-mdm9615
+ - qcom,gcc-qcs404
+ - qcom,gcc-sdm630
+ - qcom,gcc-sdm660
+ - qcom,gcc-sdm845
+ - qcom,gcc-sm8150
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+ items:
+ - const: bi_tcxo
+ - const: bi_tcxo_ao
+ - const: sleep_clk
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ nvmem-cells:
+ minItems: 1
+ maxItems: 2
+ description:
+ Qualcomm TSENS (thermal sensor device) on some devices can
+ be part of GCC and hence the TSENS properties can also be part
+ of the GCC/clock-controller node.
+ For more details on the TSENS properties please refer
+ Documentation/devicetree/bindings/thermal/qcom-tsens.txt
+
+ nvmem-cell-names:
+ minItems: 1
+ maxItems: 2
+ description:
+ Names for each nvmem-cells specified.
+ items:
+ - const: calib
+ - const: calib_backup
+
+ 'thermal-sensor-cells':
+ const: 1
+
+ protected-clocks:
+ description:
+ Protected clock specifier list as per common clock binding
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+ - '#reset-cells'
+ - '#power-domain-cells'
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,gcc-apq8064
+
+then:
+ required:
+ - nvmem-cells
+ - nvmem-cell-names
+ - '#thermal-sensor-cells'
+
+else:
+ if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,gcc-sm8150
+ then:
+ required:
+ - clocks
+ - clock-names
+
+
+examples:
+ # Example for GCC for MSM8960:
+ - |
+ clock-controller@...000 {
+ compatible = "qcom,gcc-msm8960";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+
+ # Example of GCC with TSENS properties:
+ - |
+ clock-controller@...000 {
+ compatible = "qcom,gcc-apq8064";
+ reg = <0x00900000 0x4000>;
+ nvmem-cells = <&tsens_calib>, <&tsens_backup>;
+ nvmem-cell-names = "calib", "calib_backup";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ #thermal-sensor-cells = <1>;
+ };
+
+ # Example of GCC with protected-clocks properties:
+ - |
+ clock-controller@...000 {
+ compatible = "qcom,gcc-sdm845";
+ reg = <0x100000 0x1f0000>;
+ protected-clocks = <187>, <188>, <189>, <190>, <191>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+ # Example of GCC with clock node properties for SM8150:
+ - |
+ clock-controller@...000 {
+ compatible = "qcom,gcc-sm8150";
+ reg = <0x00100000 0x1f0000>;
+ clocks = <&rpmhcc 0>, <&rpmhcc 1>, <&sleep_clk>;
+ clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
--
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