linux-kernel - Re: [PATCH 6/7] phy: omap-usb2: Add a new compatible string for USB2 PHY2

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Message-ID: <55C1C803.4030905@ti.com>
Date:	Wed, 5 Aug 2015 11:23:31 +0300
From:	Roger Quadros <rogerq@...com>
To:	Kishon Vijay Abraham I <kishon@...com>, <tony@...mide.com>,
	<t-kristo@...com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	<linux-omap@...r.kernel.org>
CC:	<balbi@...com>, <nsekhar@...com>
Subject: Re: [PATCH 6/7] phy: omap-usb2: Add a new compatible string for USB2
 PHY2


On 04/08/15 18:20, Kishon Vijay Abraham I wrote:
> The USB2 PHY2 has a different register map compared to USB2 PHY1
> to power on/off the PHY. In order to handle it, add a new
> "compatible" string.
> 
> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>  Documentation/devicetree/bindings/phy/ti-phy.txt |    2 ++
>  drivers/phy/phy-omap-usb2.c                      |    9 +++++++++
>  2 files changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/phy/ti-phy.txt b/Documentation/devicetree/bindings/phy/ti-phy.txt
> index 49e5b0c..a061077 100644
> --- a/Documentation/devicetree/bindings/phy/ti-phy.txt
> +++ b/Documentation/devicetree/bindings/phy/ti-phy.txt
> @@ -31,6 +31,8 @@ OMAP USB2 PHY
>  
>  Required properties:
>   - compatible: Should be "ti,omap-usb2"
> +	       Should be "ti,dra7x-usb2-phy2" for the 2nd instance of USB2 PHY
> +	       in DRA7x
>   - reg : Address and length of the register set for the device.
>   - #phy-cells: determine the number of cells that should be given in the
>     phandle while referencing this phy.
> diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
> index b5c266a..2f7220f 100644
> --- a/drivers/phy/phy-omap-usb2.c
> +++ b/drivers/phy/phy-omap-usb2.c
> @@ -159,6 +159,11 @@ static const struct usb_phy_data dra7x_usb2_data = {
>  	.flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
>  };
>  
> +static const struct usb_phy_data dra7x_usb2_phy2_data = {
> +	.label = "dra7x_usb2_phy2",
> +	.flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
> +};
> +
>  static const struct usb_phy_data am437x_usb2_data = {
>  	.label = "am437x_usb2",
>  	.flags =  0,
> @@ -178,6 +183,10 @@ static const struct of_device_id omap_usb2_id_table[] = {
>  		.data = &dra7x_usb2_data,
>  	},
>  	{
> +		.compatible = "ti,dra7x-usb2-phy2",
> +		.data = &dra7x_usb2_phy2_data,

Why is this needed? You can reuse dra7x_usb2_data as is.

> +	},
> +	{
>  		.compatible = "ti,am437x-usb2",
>  		.data = &am437x_usb2_data,
>  	},
> 

cheers,
-roger
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