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From: "Ivan T. Ivanov" <ivan.ivanov@linaro.org>
To: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH] Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap"
Date: Tue, 21 Apr 2015 14:18:54 +0300	[thread overview]
Message-ID: <1429615134.15866.14.camel@linaro.org> (raw)
In-Reply-To: <5C67DC9B092C4B1AAF6698027419ED92@sisodomain.com>


On Tue, 2015-04-21 at 16:46 +0530, Vivek Gautam wrote:
> Hi,
> 
> On Tuesday, April 21, 2015 12:41 PM "Ivan T. Ivanov"
> ivanov@linaro.org> wrote:
> > This reverts commit 70843f623b58 ("usb: host: ehci-msm: Use
> > devm_ioremap_resource instead of devm_ioremap"), because msm_otg
> > and this driver are using same address space to access AHB mode
> > and USB command registers.
> > 
> > Cc: Vivek Gautam vivek@samsung.com>
> 
> Since ehci-msm and msm_otg both want to control few USB registers,
> it makes sense to request ioremap'ed region in both drivers.
> 
> Acked-by: Vivek Gautam vivek@samsung.com>
> 
> I can see a patch in mailing list for adding both ehci-host and otg on msm
> [1].
> But I think it has not yet made it to mainline kernel.
> 
> [1] [v3,04/11] ARM: dts: apq8064: Add USB OTG support
> https://patches.linaro.org/47067/

Thanks. Ivan

  reply	other threads:[~2015-04-21 11:18 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-21  7:11 [PATCH] Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap" Ivan T. Ivanov
2015-04-21 11:16 ` Vivek Gautam
2015-04-21 11:18   ` Ivan T. Ivanov [this message]
     [not found] ` <1429600263-4366-1-git-send-email-ivan.ivanov-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-04-21 15:04   ` Alan Stern
2015-04-21 15:04     ` Alan Stern
     [not found]     ` <Pine.LNX.4.44L0.1504211052110.1518-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2015-04-21 15:57       ` Ivan T. Ivanov
2015-04-21 15:57         ` Ivan T. Ivanov
2015-04-21 16:56         ` Alan Stern
2015-04-21 16:56           ` Alan Stern

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