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devicetree: document new marvell-8xxx and pwrseq-sd8787 options
Cc: Rob Herring <robh@kernel.org> Cc: devicetree@vger.kernel.org Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rob Herring <robh@kernel.org>
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* Marvell SD8787 power sequence provider
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Required properties:
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- compatible: must be "mmc-pwrseq-sd8787".
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- powerdown-gpios: contains a power down GPIO specifier with the
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default active state
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- reset-gpios: contains a reset GPIO specifier with the default
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active state
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Example:
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wifi_pwrseq: wifi_pwrseq {
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compatible = "mmc-pwrseq-sd8787";
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powerdown-gpios = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
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reset-gpios = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
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}
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@ -1,4 +1,4 @@
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Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
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Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
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------
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------
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This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
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This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
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@ -8,6 +8,7 @@ connects the device to the system.
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Required properties:
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Required properties:
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- compatible : should be one of the following:
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- compatible : should be one of the following:
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* "marvell,sd8787"
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* "marvell,sd8897"
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* "marvell,sd8897"
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* "marvell,sd8997"
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* "marvell,sd8997"
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* "pci11ab,2b42"
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* "pci11ab,2b42"
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@ -34,6 +35,9 @@ Optional properties:
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so that the wifi chip can wakeup host platform under certain condition.
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so that the wifi chip can wakeup host platform under certain condition.
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during system resume, the irq will be disabled to make sure
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during system resume, the irq will be disabled to make sure
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unnecessary interrupt is not received.
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unnecessary interrupt is not received.
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- vmmc-supply: a phandle of a regulator, supplying VCC to the card
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- mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
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for documentation of MMC power sequence bindings.
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Example:
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Example:
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@ -46,6 +50,7 @@ so that firmware can wakeup host using this device side pin.
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&mmc3 {
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&mmc3 {
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status = "okay";
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status = "okay";
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vmmc-supply = <&wlan_en_reg>;
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vmmc-supply = <&wlan_en_reg>;
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mmc-pwrseq = <&wifi_pwrseq>;
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bus-width = <4>;
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bus-width = <4>;
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cap-power-off-card;
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cap-power-off-card;
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keep-power-in-suspend;
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keep-power-in-suspend;
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