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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>
hifive-unleashed-5.1
Matt Ranostay 2017-01-23 19:08:29 -08:00 committed by Ulf Hansson
parent dfcba5ffca
commit e3fffc1f0b
2 changed files with 22 additions and 1 deletions

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@ -0,0 +1,16 @@
* Marvell SD8787 power sequence provider
Required properties:
- compatible: must be "mmc-pwrseq-sd8787".
- powerdown-gpios: contains a power down GPIO specifier with the
default active state
- reset-gpios: contains a reset GPIO specifier with the default
active state
Example:
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-sd8787";
powerdown-gpios = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
reset-gpios = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
}

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@ -1,4 +1,4 @@
Marvell 8897/8997 (sd8897/sd8997/pcie8997) SDIO/PCIE devices
Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
------
This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
@ -8,6 +8,7 @@ connects the device to the system.
Required properties:
- compatible : should be one of the following:
* "marvell,sd8787"
* "marvell,sd8897"
* "marvell,sd8997"
* "pci11ab,2b42"
@ -34,6 +35,9 @@ Optional properties:
so that the wifi chip can wakeup host platform under certain condition.
during system resume, the irq will be disabled to make sure
unnecessary interrupt is not received.
- vmmc-supply: a phandle of a regulator, supplying VCC to the card
- mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
for documentation of MMC power sequence bindings.
Example:
@ -46,6 +50,7 @@ so that firmware can wakeup host using this device side pin.
&mmc3 {
status = "okay";
vmmc-supply = <&wlan_en_reg>;
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
cap-power-off-card;
keep-power-in-suspend;