linux-kernel - Re: [PATCH 07/13] ARM: STi: DT: STiH407: Add usb2 picophy dt nodes

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Message-ID: <20141110101131.GP21424@x1>
Date:	Mon, 10 Nov 2014 10:11:31 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Peter Griffin <peter.griffin@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	srinivas.kandagatla@...il.com, maxime.coquelin@...com,
	patrice.chotard@...com, devicetree@...r.kernel.org
Subject: Re: [PATCH 07/13] ARM: STi: DT: STiH407: Add usb2 picophy dt nodes

On Fri, 07 Nov 2014, Peter Griffin wrote:

> This patch adds the dt nodes for the usb2 picophy found on the stih407
> family of devices. It is used on stih410 and later devices with the ehci/ohci usb
> controller, and is also used as the usb2 phy with the dwc3 usb3 controller.
> 
> Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
> ---
>  arch/arm/boot/dts/stih407.dtsi | 46 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 46 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/stih407.dtsi b/arch/arm/boot/dts/stih407.dtsi
> index 50637f5..967ec39 100644
> --- a/arch/arm/boot/dts/stih407.dtsi
> +++ b/arch/arm/boot/dts/stih407.dtsi
> @@ -275,5 +275,51 @@
>  
>  			status = "disabled";
>  		};
> +
> +		/* Generic picoPHY */
> +		usb2_picophy0: usbpicophy@0 {
> +			compatible = "st,stih407-usb2-phy";
> +			reg =	<0xf8 0x04>,	/* syscfg 5062 */
> +				<0xf4 0x04>;    /* syscfg 5061 */

Are there really only 2 32bit registers to control this h/w?

> +			reg-names =	"param",
> +					"ctrl";

Superflous indentation after 'reg = ' and 'reg-names = '.

> +			#phy-cells = <0>;
> +
> +			st,syscfg = <&syscfg_core>;
> +			resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> +				 <&picophyreset STIH407_PICOPHY0_RESET>;
> +			reset-names = "global",
> +				      "port";

May as well put these on the same line.

> +		};
> +
> +		usb2_picophy1: usbpicophy@1 {
> +			compatible = "st,stih407-usb2-phy";
> +			#phy-cells = <0>;
> +			reg =	<0xfc 0x04>,	/* syscfg 5063 */
> +				<0xf4 0x04>;    /* syscfg 5061 */
> +			reg-names =	"param",
> +					"ctrl";
> +
> +			st,syscfg = <&syscfg_core>;
> +			resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> +				 <&picophyreset STIH407_PICOPHY1_RESET>;
> +			reset-names = "global",
> +				      "port";
> +		};
> +
> +		usb2_picophy2: usbpicophy@2 {
> +			compatible = "st,stih407-usb2-phy";
> +			#phy-cells = <0>;
> +			reg =	<0x100 0x04>,	/* syscfg 5064 */
> +				<0xf4 0x04>;    /* syscfg 5061 */
> +			reg-names =	"param",
> +					"ctrl";
> +
> +			st,syscfg = <&syscfg_core>;
> +			resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
> +				 <&picophyreset STIH407_PICOPHY2_RESET>;
> +			reset-names = "global",
> +				      "port";
> +		};
>  	};
>  };

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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