linux-kernel - RE: [PATCH 1/3] dt-bindings: phy: rcar-gen3-phy-usb2: Revise #phy-cells property

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Date:   Wed, 3 Apr 2019 10:35:29 +0000
From:   Fabrizio Castro <fabrizio.castro@...renesas.com>
To:     Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        "kishon@...com" <kishon@...com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Subject: RE: [PATCH 1/3] dt-bindings: phy: rcar-gen3-phy-usb2: Revise
 #phy-cells property

Hello Yoshihiro-san,

Thank you for your patch!

> From: linux-kernel-owner@...r.kernel.org <linux-kernel-owner@...r.kernel.org> On Behalf Of Yoshihiro Shimoda
> Sent: 01 April 2019 13:01
> Subject: [PATCH 1/3] dt-bindings: phy: rcar-gen3-phy-usb2: Revise #phy-cells property
> 
> To have the detailed property on each PHY specifier, this patch revices

s/revices/revises/g

> the #phy-cells property.
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
> ---
>  Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-
> phy-usb2.txt
> index ad9c290..7f0d4bf 100644
> --- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> +++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> @@ -27,7 +27,12 @@ Required properties:
> 
>  - reg: offset and length of the partial USB 2.0 Host register block.
>  - clocks: clock phandle and specifier pair(s).
> -- #phy-cells: see phy-bindings.txt in the same directory, must be <0>.
> +- #phy-cells: see phy-bindings.txt in the same directory, must be <1>.
> +
> +The phandle's argument in the PHY specifier is the INT_STATUS bit of controller:

>From the driver we are also looking for value 0, as in rcar_gen3_get_dr_mode we
have a for loop that starts from 0, and we call of_usb_get_dr_mode_by_phy with
arg0 == 0, why are we leaving this out from this list?

Thanks,
Fab

> +- 1 = USBH_INTA (OHCI)
> +- 2 = USBH_INTB (EHCI)
> +- 3 = UCOM_INT (OTG and BC)
> 
>  Optional properties:
>  To use a USB channel where USB 2.0 Host and HSUSB (USB 2.0 Peripheral) are
> --
> 2.7.4