linux-kernel - [PATCH V12 2/3] dt-bindings: pwm: add IPQ6018 binding

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Message-ID: <20230925065915.3467964-3-quic_devipriy@quicinc.com>
Date:   Mon, 25 Sep 2023 12:29:14 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     <thierry.reding@...il.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <ndesaulniers@...gle.com>,
        <trix@...hat.com>, <baruch@...s.co.il>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <llvm@...ts.linux.dev>
CC:     <linux-pwm@...r.kernel.org>, <u.kleine-koenig@...gutronix.de>,
        <nathan@...nel.org>
Subject: [PATCH V12 2/3] dt-bindings: pwm: add IPQ6018 binding

DT binding for the PWM block in Qualcomm IPQ6018 SoC.

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Co-developed-by: Baruch Siach <baruch.siach@...lu.com>
Signed-off-by: Baruch Siach <baruch.siach@...lu.com>
Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
---
v12:

  Picked up the R-b tag

v11:

  No change

v10:

  No change

v9:

  Add 'ranges' property to example (Rob)

  Drop label in example (Rob)

v8:

  Add size cell to 'reg' (Rob)

v7:

  Use 'reg' instead of 'offset' (Rob)

  Drop 'clock-names' and 'assigned-clock*' (Bjorn)

  Use single cell address/size in example node (Bjorn)

  Move '#pwm-cells' lower in example node (Bjorn)

  List 'reg' as required

v6:

  Device node is child of TCSR; remove phandle (Rob Herring)

  Add assigned-clocks/assigned-clock-rates (Uwe Kleine-König)

v5: Use qcom,pwm-regs for phandle instead of direct regs (Bjorn
    Andersson, Kathiravan T)

v4: Update the binding example node as well (Rob Herring's bot)

v3: s/qcom,pwm-ipq6018/qcom,ipq6018-pwm/ (Rob Herring)

v2: Make #pwm-cells const (Rob Herring)

 .../devicetree/bindings/pwm/ipq-pwm.yaml      | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/ipq-pwm.yaml

diff --git a/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
new file mode 100644
index 000000000000..857086ad539e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/ipq-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm IPQ6018 PWM controller
+
+maintainers:
+  - Baruch Siach <baruch@...s.co.il>
+
+properties:
+  "#pwm-cells":
+    const: 2
+
+  compatible:
+    const: qcom,ipq6018-pwm
+
+  reg:
+    description: Offset of PWM register in the TCSR block.
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - "#pwm-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,gcc-ipq6018.h>
+
+    syscon@...7000 {
+        compatible = "qcom,tcsr-ipq6018", "syscon", "simple-mfd";
+        reg = <0x01937000 0x21000>;
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges = <0 0x1937000 0x21000>;
+
+        pwm: pwm@...0 {
+            compatible = "qcom,ipq6018-pwm";
+            reg = <0xa010 0x20>;
+            clocks = <&gcc GCC_ADSS_PWM_CLK>;
+            assigned-clocks = <&gcc GCC_ADSS_PWM_CLK>;
+            assigned-clock-rates = <100000000>;
+            #pwm-cells = <2>;
+        };
+    };
-- 
2.34.1