linux-kernel - [PATCH v4 1/6] dt-bindings: clock: msm8939: Move msm8939 to a distinct yaml file

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Date:   Mon, 23 Jan 2023 02:31:22 +0000
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        djakov@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     bryan.odonoghue@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, benl@...areup.com,
        shawn.guo@...aro.org, fabien.parent@...aro.org, leo.yan@...aro.org,
        dmitry.baryshkov@...aro.org, stephan@...hold.net
Subject: [PATCH v4 1/6] dt-bindings: clock: msm8939: Move msm8939 to a distinct yaml file

The MSM8939 has two DSI controllers as opposed to the MSM8916 which has
one. As a consequence we need to document some additional clocks provided
by the MSM8939 GCC which are not provided by MSM8916.

Move the declaration of the MSM8939 super-set of clocks to an MSM8939
specific yaml file.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
---
 .../bindings/clock/qcom,gcc-msm8916.yaml      |  7 +-
 .../bindings/clock/qcom,gcc-msm8939.yaml      | 87 +++++++++++++++++++
 2 files changed, 89 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/qcom,gcc-msm8939.yaml

diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
index ad84c0f7680be..016d310be3c83 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/clock/qcom,gcc-msm8916.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Qualcomm Global Clock & Reset Controller on MSM8916 and MSM8939
+title: Qualcomm Global Clock & Reset Controller on MSM8916.
 
 maintainers:
   - Stephen Boyd <sboyd@...nel.org>
@@ -12,19 +12,16 @@ maintainers:
 
 description: |
   Qualcomm global clock control module provides the clocks, resets and power
-  domains on MSM8916 or MSM8939.
+  domains on MSM8916.
 
   See also::
     include/dt-bindings/clock/qcom,gcc-msm8916.h
-    include/dt-bindings/clock/qcom,gcc-msm8939.h
     include/dt-bindings/reset/qcom,gcc-msm8916.h
-    include/dt-bindings/reset/qcom,gcc-msm8939.h
 
 properties:
   compatible:
     enum:
       - qcom,gcc-msm8916
-      - qcom,gcc-msm8939
 
   clocks:
     items:
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8939.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8939.yaml
new file mode 100644
index 0000000000000..92a811d6ad97b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8939.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-msm8939.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller on MSM8939.
+
+maintainers:
+  - Bryan O'Donoghue <bryan.odonoghue@...aro.org>
+
+description: |
+  Qualcomm global clock control module provides the clocks, resets and power
+  domains on MSM8939.
+
+  See also::
+    include/dt-bindings/clock/qcom,gcc-msm8939.h
+    include/dt-bindings/reset/qcom,gcc-msm8939.h
+
+properties:
+  compatible:
+    enum:
+      - qcom,gcc-msm8939
+
+  clocks:
+    items:
+      - description: XO source
+      - description: Sleep clock source
+      - description: DSI phy instance 0 dsi clock
+      - description: DSI phy instance 0 byte clock
+      - description: DSI phy instance 1 dsi clock
+      - description: DSI phy instance 1 byte clock
+      - description: External MCLK clock
+      - description: External Primary I2S clock
+      - description: External Secondary I2S clock
+
+  clock-names:
+    items:
+      - const: xo
+      - const: sleep_clk
+      - const: dsi0pll
+      - const: dsi0pllbyte
+      - const: dsi1pll
+      - const: dsi1pllbyte
+      - const: ext_mclk
+      - const: ext_pri_i2s
+      - const: ext_sec_i2s
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+
+allOf:
+  - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,rpm.h>
+    clock-controller@...0000 {
+      compatible = "qcom,gcc-msm8939";
+      reg = <0x01800000 0x80000>;
+      clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+               <&sleep_clk>,
+               <&dsi_phy0 1>,
+               <&dsi_phy0 0>,
+               <&dsi_phy1 1>,
+               <&dsi_phy1 0>,
+               <0>,
+               <0>,
+               <0>;
+      clock-names = "xo",
+                    "sleep_clk",
+                    "dsi0pll",
+                    "dsi0pllbyte",
+                    "dsi1pll",
+                    "dsi1pllbyte",
+                    "ext_mclk",
+                    "ext_pri_i2s",
+                    "ext_sec_i2s";
+      #clock-cells = <1>;
+      #reset-cells = <1>;
+      #power-domain-cells = <1>;
+    };
+...
-- 
2.38.1