Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Wed, 5 Jun 2019 19:50:35 +0100
From:   Lee Jones <lee.jones@linaro.org>
To:     Jeffrey Hugo <jhugo@codeaurora.org>
Cc:     Bjorn Andersson <bjorn.andersson@linaro.org>, balbi@kernel.org,
        wsa+renesas@sang-engineering.com, gregkh@linuxfoundation.org,
        linus.walleij@linaro.org, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org, david.brown@linaro.org,
        alokc@codeaurora.org, kramasub@codeaurora.org,
        linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org,
        linux-arm-msm@vger.kernel.org, andy.gross@linaro.org,
        jlhugo@gmail.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 7/8] usb: dwc3: qcom: Start USB in 'host mode' on the
 SDM845
Message-ID: <20190605185035.GV4797@dell>
References: <20190604104455.8877-1-lee.jones@linaro.org>
 <20190604104455.8877-7-lee.jones@linaro.org>
 <20190605070029.GN22737@tuxbook-pro>
 <20190605083454.GO4797@dell>
 <d9ba98e6-3caf-62fc-45ca-944cb718b7e4@codeaurora.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <d9ba98e6-3caf-62fc-45ca-944cb718b7e4@codeaurora.org>
User-Agent: Mutt/1.9.4 (2018-02-28)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, 05 Jun 2019, Jeffrey Hugo wrote:

> On 6/5/2019 2:34 AM, Lee Jones wrote:
> > On Wed, 05 Jun 2019, Bjorn Andersson wrote:
> > 
> > > On Tue 04 Jun 03:44 PDT 2019, Lee Jones wrote:
> > > 
> > > > When booting with Device Tree, the current default boot configuration
> > > > table option, the request to boot via 'host mode' comes from the
> > > > "dr_mode" property.
> > > 
> > > This has been the default on the MTP, but this is changing as this is
> > > causing issues when connected downstream from a hub (the typical
> > > development case for the primary USB port of a phone like device) and
> > > more importantly we don't have support for the PMIC blocks that control
> > > VBUS.
> > 
> > My point is not about which mode is currently chosen.  It's more about
> > the capability of choosing which mode is appropriate for a given
> > system via DT.
> > 
> > > Once these issues are resolved the dr_mode would be "otg".
> > 
> > OTG doesn't work on this H/W, so we need to specify "host" mode.
> 
> How have you made that determination?

I enabled OTG and plugged in all of the things.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog