From: Rob Herring <robh@kernel.org>
To: Roger Quadros <rogerq@ti.com>
Cc: peter.chen@freescale.com, stern@rowland.harvard.edu,
balbi@kernel.org, gregkh@linuxfoundation.org,
dan.j.williams@intel.com, jun.li@freescale.com,
mathias.nyman@linux.intel.com, tony@atomide.com,
Joao.Pinto@synopsys.com, abrestic@chromium.org,
yoshihiro.shimoda.uh@renesas.com, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v7 10/14] usb: otg: add hcd companion support
Date: Wed, 4 May 2016 08:17:00 -0500 [thread overview]
Message-ID: <20160504131700.GA20184@rob-hp-laptop> (raw)
In-Reply-To: <1462191537-10314-11-git-send-email-rogerq@ti.com>
On Mon, May 02, 2016 at 03:18:53PM +0300, Roger Quadros wrote:
> From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
>
> Since some host controller (e.g. EHCI) needs a companion host controller
> (e.g. OHCI), this patch adds such a configuration to use it in the OTG
> core.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> Signed-off-by: Roger Quadros <rogerq@ti.com>
> ---
> Documentation/devicetree/bindings/usb/generic.txt | 3 +++
> drivers/usb/common/usb-otg.c | 32 ++++++++++++++++-------
> include/linux/usb/otg.h | 7 ++++-
> 3 files changed, 32 insertions(+), 10 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt
> index f6866c1..1db1c33 100644
> --- a/Documentation/devicetree/bindings/usb/generic.txt
> +++ b/Documentation/devicetree/bindings/usb/generic.txt
> @@ -27,6 +27,9 @@ Optional properties:
> - otg-controller: phandle to otg controller. Host or gadget controllers can
> contain this property to link it to a particular OTG
> controller.
> + - hcd-needs-companion: must be present if otg controller is dealing with
> + EHCI host controller that needs a companion OHCI host
> + controller.
Don't you need to have a link to the companion controller node?
>
> This is an attribute to a USB controller such as:
>
next prev parent reply other threads:[~2016-05-04 13:17 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-02 12:18 [PATCH v7 00/14] USB OTG/dual-role framework Roger Quadros
2016-05-02 12:18 ` [PATCH v7 01/14] usb: hcd: Initialize hcd->flags to 0 Roger Quadros
2016-05-06 9:05 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 02/14] usb: otg-fsm: Prevent build warning "VDBG" redefined Roger Quadros
2016-05-11 8:17 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 03/14] usb: hcd.h: Add OTG to HCD interface Roger Quadros
2016-05-06 9:41 ` Peter Chen
2016-05-09 9:45 ` Roger Quadros
2016-05-10 3:14 ` Peter Chen
2016-05-10 7:34 ` Roger Quadros
2016-05-10 8:03 ` Jun Li
2016-05-10 9:20 ` Roger Quadros
2016-05-11 6:19 ` Peter Chen
2016-05-10 8:12 ` Felipe Balbi
2016-05-10 9:12 ` Roger Quadros
2016-05-02 12:18 ` [PATCH v7 04/14] usb: otg-fsm: use usb_otg wherever possible Roger Quadros
2016-05-02 12:18 ` [PATCH v7 05/14] usb: otg-fsm: move host controller operations into usb_otg->hcd_ops Roger Quadros
2016-05-11 6:10 ` Peter Chen
2016-05-11 11:02 ` Roger Quadros
2016-05-11 12:32 ` Roger Quadros
2016-05-12 8:18 ` Peter Chen
2016-05-12 8:29 ` Roger Quadros
2016-05-02 12:18 ` [PATCH v7 06/14] usb: gadget.h: Add OTG to gadget interface Roger Quadros
2016-05-02 12:18 ` [PATCH v7 07/14] usb: otg: get rid of CONFIG_USB_OTG_FSM in favour of CONFIG_USB_OTG Roger Quadros
2016-05-11 8:21 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 08/14] usb: otg: add OTG/dual-role core Roger Quadros
2016-05-11 8:34 ` Peter Chen
2016-05-11 11:03 ` Roger Quadros
2016-05-02 12:18 ` [PATCH v7 09/14] usb: of: add an API to get OTG device from USB controller node Roger Quadros
2016-05-04 13:15 ` Rob Herring
2016-05-11 8:40 ` Peter Chen
2016-05-11 11:04 ` Roger Quadros
2016-05-02 12:18 ` [PATCH v7 10/14] usb: otg: add hcd companion support Roger Quadros
2016-05-04 13:17 ` Rob Herring [this message]
2016-05-04 13:47 ` Roger Quadros
2016-05-11 13:54 ` Rob Herring
2016-05-11 14:13 ` Roger Quadros
2016-05-11 14:47 ` Alan Stern
2016-05-12 4:00 ` Yoshihiro Shimoda
2016-05-12 8:34 ` Roger Quadros
2016-05-12 9:31 ` Roger Quadros
2016-05-12 10:31 ` Yoshihiro Shimoda
2016-05-12 12:13 ` Roger Quadros
2016-05-16 2:13 ` Peter Chen
2016-05-16 8:01 ` Roger Quadros
2016-05-16 8:13 ` Peter Chen
2016-05-16 8:35 ` Roger Quadros
2016-05-12 18:16 ` Alan Stern
2016-05-11 8:43 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 11/14] usb: otg: use dev_dbg() instead of VDBG() Roger Quadros
2016-05-06 9:04 ` Peter Chen
2016-05-09 9:48 ` Roger Quadros
2016-05-11 8:43 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 12/14] usb: hcd: Adapt to OTG core Roger Quadros
2016-05-11 8:57 ` Peter Chen
2016-05-02 12:18 ` [PATCH v7 13/14] usb: gadget: udc: adapt " Roger Quadros
2016-05-02 12:18 ` [PATCH v7 14/14] usb: host: xhci-plat: Add otg device to platform data Roger Quadros
2016-05-11 9:00 ` Peter Chen
2016-05-11 8:36 ` [PATCH v7 00/14] USB OTG/dual-role framework Peter Chen
2016-05-11 11:05 ` Roger Quadros
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