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    Subject[PATCH v8 9/9] ARM: dts: DRA7: Add dt nodes for PWMSS
    Date
    From: Vignesh R <vigneshr@ti.com>

    Add PWMSS device tree nodes for DRA7 SoC family and add documentation
    for dt bindings.

    Signed-off-by: Vignesh R <vigneshr@ti.com>
    [fcooper@ti.com: Add eCAP and use updated bindings for PWMSS and ePWM]
    Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
    Acked-by: Rob Herring <robh@kernel.org>
    ---
    .../devicetree/bindings/pwm/pwm-tiecap.txt | 9 +++
    .../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 9 +++
    .../devicetree/bindings/pwm/pwm-tipwmss.txt | 12 +++
    arch/arm/boot/dts/dra7.dtsi | 90 ++++++++++++++++++++++
    4 files changed, 120 insertions(+)

    diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
    index f2a9a7c..8007e83 100644
    --- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
    +++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
    @@ -5,6 +5,7 @@ Required properties:
    for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
    for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
    for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
    + for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap";
    - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
    the cells format. The PWM channel index ranges from 0 to 4. The only third
    cell flag supported by this binding is PWM_POLARITY_INVERTED.
    @@ -38,3 +39,11 @@ ecap0: ecap@1f06000 { /* ECAP on da850 */
    #pwm-cells = <3>;
    reg = <0x1f06000 0x80>;
    };
    +
    +ecap0: ecap@4843e100 {
    + compatible = "ti,dra746-ecap", "ti,am3352-ecap";
    + #pwm-cells = <3>;
    + reg = <0x4843e100 0x80>;
    + clocks = <&l4_root_clk_div>;
    + clock-names = "fck";
    +};
    diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
    index 41a2bd4..944fe35 100644
    --- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
    +++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
    @@ -5,6 +5,7 @@ Required properties:
    for am33xx - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
    for am4372 - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
    for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
    + for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm";
    - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
    the cells format. The only third cell flag supported by this binding is
    PWM_POLARITY_INVERTED.
    @@ -38,3 +39,11 @@ ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
    #pwm-cells = <3>;
    reg = <0x1f00000 0x2000>;
    };
    +
    +ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */
    + compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm";
    + #pwm-cells = <3>;
    + reg = <0x4843e200 0x80>;
    + clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
    + clock-names = "tbclk", "fck";
    +};
    diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
    index fd8e87c..1a5d7b7 100644
    --- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
    +++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
    @@ -4,6 +4,7 @@ Required properties:
    - compatible: Must be "ti,<soc>-pwmss".
    for am33xx - compatible = "ti,am33xx-pwmss";
    for am4372 - compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
    + for dra746 - compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss"

    - reg: physical base address and size of the registers map.
    - address-cells: Specify the number of u32 entries needed in child nodes.
    @@ -46,3 +47,14 @@ epwmss0: epwmss@48300000 { /* PWMSS for am4372 */

    /* child nodes go here */
    };
    +
    +epwmss0: epwmss@4843e000 { /* PWMSS for DRA7xx */
    + compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
    + reg = <0x4843e000 0x30>;
    + ti,hwmods = "epwmss0";
    + #address-cells = <1>;
    + #size-cells = <1>;
    + ranges;
    +
    + /* child nodes go here */
    +};
    diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
    index e007401..5a21e46 100644
    --- a/arch/arm/boot/dts/dra7.dtsi
    +++ b/arch/arm/boot/dts/dra7.dtsi
    @@ -1743,6 +1743,96 @@
    clock-names = "fck", "sys_clk";
    };
    };
    +
    + epwmss0: epwmss@4843e000 {
    + compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
    + reg = <0x4843e000 0x30>;
    + ti,hwmods = "epwmss0";
    + #address-cells = <1>;
    + #size-cells = <1>;
    + status = "disabled";
    + ranges;
    +
    + ehrpwm0: pwm@4843e200 {
    + compatible = "ti,dra746-ehrpwm",
    + "ti,am3352-ehrpwm";
    + #pwm-cells = <3>;
    + reg = <0x4843e200 0x80>;
    + clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
    + clock-names = "tbclk", "fck";
    + status = "disabled";
    + };
    +
    + ecap0: ecap@4843e100 {
    + compatible = "ti,dra746-ecap",
    + "ti,am3352-ecap";
    + #pwm-cells = <3>;
    + reg = <0x4843e100 0x80>;
    + clocks = <&l4_root_clk_div>;
    + clock-names = "fck";
    + status = "disabled";
    + };
    + };
    +
    + epwmss1: epwmss@48440000 {
    + compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
    + reg = <0x48440000 0x30>;
    + ti,hwmods = "epwmss1";
    + #address-cells = <1>;
    + #size-cells = <1>;
    + status = "disabled";
    + ranges;
    +
    + ehrpwm1: pwm@48440200 {
    + compatible = "ti,dra746-ehrpwm",
    + "ti,am3352-ehrpwm";
    + #pwm-cells = <3>;
    + reg = <0x48440200 0x80>;
    + clocks = <&ehrpwm1_tbclk>, <&l4_root_clk_div>;
    + clock-names = "tbclk", "fck";
    + status = "disabled";
    + };
    +
    + ecap1: ecap@48440100 {
    + compatible = "ti,dra746-ecap",
    + "ti,am3352-ecap";
    + #pwm-cells = <3>;
    + reg = <0x48440100 0x80>;
    + clocks = <&l4_root_clk_div>;
    + clock-names = "fck";
    + status = "disabled";
    + };
    + };
    +
    + epwmss2: epwmss@48442000 {
    + compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
    + reg = <0x48442000 0x30>;
    + ti,hwmods = "epwmss2";
    + #address-cells = <1>;
    + #size-cells = <1>;
    + status = "disabled";
    + ranges;
    +
    + ehrpwm2: pwm@48442200 {
    + compatible = "ti,dra746-ehrpwm",
    + "ti,am3352-ehrpwm";
    + #pwm-cells = <3>;
    + reg = <0x48442200 0x80>;
    + clocks = <&ehrpwm2_tbclk>, <&l4_root_clk_div>;
    + clock-names = "tbclk", "fck";
    + status = "disabled";
    + };
    +
    + ecap2: ecap@48442100 {
    + compatible = "ti,dra746-ecap",
    + "ti,am3352-ecap";
    + #pwm-cells = <3>;
    + reg = <0x48442100 0x80>;
    + clocks = <&l4_root_clk_div>;
    + clock-names = "fck";
    + status = "disabled";
    + };
    + };
    };

    thermal_zones: thermal-zones {
    --
    2.7.0
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