Re: [PATCH v3 06/10] spmi: document the PMIC arbiter SPMI bindings

Ivan T. Ivanov
2013-10-29T14:09:46Z

Hi Josh,

On Mon, 2013-10-28 at 13:12 -0500, Josh Cartwright wrote:
> Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
> ---
> .../bindings/spmi/qcom,spmi-pmic-arb.txt | 42 ++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt
>
> diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt
> new file mode 100644
> index 0000000..68949aa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.txt
> @@ -0,0 +1,42 @@
> +Qualcomm SPMI Controller (PMIC Arbiter)
> +
> +The SPMI PMIC Arbiter is found on the Snapdragon 800 Series. It is an SPMI
> +controller with wrapping arbitration logic to allow for multiple on-chip
> +devices to control a single SPMI master.
> +
> +The PMIC Arbiter can also act as an interrupt controller, providing interrupts
> +to slave devices.
> +
> +See spmi.txt for the generic SPMI controller binding requirements for child
> +nodes.
> +
> +Required properties:
> +- compatible : should be "qcom,spmi-pmic-arb".
> +- reg-names : should be "core", "intr", "cnfg"
> +- reg : offset and length of the PMIC Arbiter Core register map.
> +- reg : offset and length of the PMIC Arbiter Interrupt controller register map.
> +- reg : offset and length of the PMIC Arbiter Configuration register map.
> +- #address-cells : must be set to 1

This doesn't seem to follow generic set of bindings for the SPMI
controllers. #address-cells : must be set to 2.

Regards,
Ivan

> +- #size-cells : must be set to 0
> +- interrupt-controller : indicates the PMIC arbiter is an interrupt controller
> +- #interrupt-cells = <4>: interrupts are specified as a 4-tuple:
> + cell 1: slave ID for the requested interrupt (0-15)
> + cell 2: peripheral ID for requested interrupt (0-255)
> + cell 3: the requested peripheral interrupt (0-7)
> + cell 4: interrupt flags indicating level-sense information, as defined in
> + dt-bindings/interrupt-controller/irq.h
> +
> +Example:
> +
> + qcom,spmi@fc4c0000 {
> + compatible = "qcom,spmi-pmic-arb";
> + reg-names = "core", "intr", "cnfg";
> + reg = <0xfc4cf000 0x1000>,
> + <0Xfc4cb000 0x1000>,
> + <0Xfc4ca000 0x1000>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + interrupt-controller;
> + #interrupt-cells = <4>;
> + };