The BCM6358 contains power domains controlled with a register. Power domains are indexed by bits in the register. Power domain bits can be interleaved with other status bits and clocks in the same register. Newer SoCs with dedicated power domain registers are active low. Signed-off-by: Simon Arlott <simon@xxxxxxxxxxx> --- .../power/brcm,bcm6358-power-controller.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/brcm,bcm6358-power-controller.txt diff --git a/Documentation/devicetree/bindings/power/brcm,bcm6358-power-controller.txt b/Documentation/devicetree/bindings/power/brcm,bcm6358-power-controller.txt new file mode 100644 index 0000000..556c323 --- /dev/null +++ b/Documentation/devicetree/bindings/power/brcm,bcm6358-power-controller.txt @@ -0,0 +1,53 @@ +Broadcom BCM6358 Power domain controller + +This binding uses the power domain bindings: + Documentation/devicetree/bindings/power/power_domain.txt + +The BCM6358 contains power domains controlled with a register. Power +domains are indexed by bits in the register. Power domain bits can be +interleaved with other status bits and clocks in the same register. + +Newer SoCs with dedicated power domain registers are active low. + +Required properties: +- compatible: Should be "brcm,bcm<soc>-power-controller", "brcm,bcm6358-power-controller" +- #power-domain-cells: Should be <1>. +- regmap: The register map phandle +- offset: Offset in the register map for the power domain register (in bytes) +- power-domain-indices: The bits in the register used for power domains. +- power-domain-names: Should be a list of strings of power domain names + indexed by the power domain indices. + +Optional properties: +- active-low: Specify that the bits are active low. + +Example: + +misc_iddq_ctrl: power-controller { + compatible = "brcm,bcm63168-power-controller", "brcm,bcm6358-power-controller"; + regmap = <&misc>; + offset = <0x4c>; + + #power-domain-cells = <1>; + power-domain-indices = + <0>, <1>, <2>, <3>, <4>, + <5>, <6>, <7>, <8>, <9>, + <10>, <11>, <12>, <13>, <17>, + <18>; + power-domain-names = + "sar", "ipsec", "mips", "dect", "usbh", + "usbd", "robosw", "pcm", "periph", "vdsl_phy", + "vdsl_mips", "fap", "pcie", "wlan_pads", "gphy", + "gmac"; + active-low; +}; + +periph_iddq: power-controller { + compatible = "brcm,bcm6368-power-controller", "brcm,bcm6358-power-controller"; + regmap = <&periph_cntl>; + offset = <0x4>; + + #power-domain-cells = <1>; + power-domain-indices = <19>; + power-domain-names = "usbh"; +}; -- 2.1.4 -- Simon Arlott -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html