On Wed, Sep 06, 2017 at 05:30:07PM +0530, Tirupathi Reddy wrote:
> Clkdiv module provides a clock output on the PMIC with CXO as
> the source. This clock can be routed through PMIC GPIOs. Add
> a device driver to configure this clkdiv module.
>
> Signed-off-by: Tirupathi Reddy <tirupath@xxxxxxxxxxxxxx>
> ---
> .../bindings/clock/clk-spmi-pmic-div.txt | 51 +++
> drivers/clk/qcom/Kconfig | 9 +
> drivers/clk/qcom/Makefile | 1 +
> drivers/clk/qcom/clk-spmi-pmic-div.c | 342 +++++++++++++++++++++
> 4 files changed, 403 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/clk-spmi-pmic-div.txt
> create mode 100644 drivers/clk/qcom/clk-spmi-pmic-div.c
>
> diff --git a/Documentation/devicetree/bindings/clock/clk-spmi-pmic-div.txt b/Documentation/devicetree/bindings/clock/clk-spmi-pmic-div.txt
> new file mode 100644
> index 0000000..8b84b32
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/clk-spmi-pmic-div.txt
> @@ -0,0 +1,51 @@
> +Qualcomm Technologies, Inc. SPMI PMIC clock divider (clkdiv)
> +
> +clkdiv configures the clock frequency of a set of outputs on the PMIC.
> +These clocks are typically wired through alternate functions on
> +gpio pins.
> +
> +=======================
> +Properties
> +=======================
> +
> +- compatible
> + Usage: required
> + Value type: <string>
> + Definition: must be one of:
> + "qcom,spmi-clkdiv"
If this is not a fallback, drop it.
> + "qcom,pm8998-clkdiv"
> +
> +- reg
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: Addresses and sizes for the memory of this CLKDIV
> + peripheral.
> +
> +- clocks:
> + Usage: required
> + Value type: <prop-encoded-array>
> + Definition: reference to the xo clock.
> +
> +- clock-names:
> + Usage: required
> + Value type: <stringlist>
> + Definition: must be "xo".
Missing #clock-cells
> +
> +=======
> +Example
> +=======
> +
> +pm8998_clk_divs: qcom,clkdiv@5b00 {
clock@5b00
> + compatible = "qcom,pm8998-clkdiv";
> + reg = <0x5b00>;
> + #clock-cells = <1>;
> + clocks = <&xo_board>;
> + clock-names = "xo";
> +
> + assigned-clocks = <&pm8998_clk_divs 1>,
> + <&pm8998_clk_divs 2>,
> + <&pm8998_clk_divs 3>;
> + assigned-clock-rates = <9600000>,
> + <9600000>,
> + <9600000>;
> +};
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