linux-kernel - Re: [PATCH v3 1/2] devicetree: document new marvell-8xxx and pwrseq-sd8787 options

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Message-ID: <20170118220207.3zhbavk2uo4xui34@rob-hp-laptop>
Date:   Wed, 18 Jan 2017 16:02:07 -0600
From:   Rob Herring <robh@...nel.org>
To:     Matt Ranostay <matt@...ostay.consulting>
Cc:     linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        tony@...mide.com
Subject: Re: [PATCH v3 1/2] devicetree: document new marvell-8xxx and
 pwrseq-sd8787 options

On Thu, Jan 12, 2017 at 09:29:36PM -0800, Matt Ranostay wrote:

Changelog?

> Cc: devicetree@...r.kernel.org
> Signed-off-by: Matt Ranostay <matt@...ostay.consulting>
> ---
>  .../devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt          | 14 ++++++++++++++
>  .../devicetree/bindings/net/wireless/marvell-8xxx.txt      |  7 ++++++-
>  2 files changed, 20 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> 
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> new file mode 100644
> index 000000000000..1b658351629b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.txt
> @@ -0,0 +1,14 @@
> +* Marvell SD8787 power sequence provider
> +
> +Required properties:
> +- compatible: must be "mmc-pwrseq-sd8787".
> +- pwndn-gpio: contains a power down GPIO specifier.

powerdown-gpios

> +- reset-gpio: contains a reset GPIO specifier.

reset-gpios

And state the active state for both.

> +
> +Example:
> +
> +	wifi_pwrseq: wifi_pwrseq {
> +		compatible = "mmc-pwrseq-sd8787";
> +		pwrdn-gpio = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
> +		reset-gpio = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
> +	}
> diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> index 980b16df74c3..0854451ff91d 100644
> --- a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> +++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
> @@ -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;
> -- 
> 2.10.2
> 
> --
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