linux-kernel - Re: [PATCH v1 7/8] usb: host: ehci-tegra: Remove the driver

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Date:   Wed, 16 Dec 2020 20:28:03 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter Chen <Peter.Chen@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Felipe Balbi <balbi@...nel.org>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Peter Geis <pgwipeout@...il.com>, linux-tegra@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 7/8] usb: host: ehci-tegra: Remove the driver

16.12.2020 20:22, Alan Stern пишет:
> On Wed, Dec 16, 2020 at 08:09:51PM +0300, Dmitry Osipenko wrote:
>> 16.12.2020 19:45, Alan Stern пишет:
>>> On Tue, Dec 15, 2020 at 11:21:12PM +0300, Dmitry Osipenko wrote:
>>>> The ChipIdea driver now provides USB2 host mode support for NVIDIA Tegra
>>>> SoCs. The ehci-tegra driver is obsolete now, remove it.
>>>>
>>>> Tested-by: Matt Merhar <mattmerhar@...tonmail.com>
>>>> Tested-by: Nicolas Chauvet <kwizart@...il.com>
>>>> Tested-by: Peter Geis <pgwipeout@...il.com>
>>>> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
>>>> ---
>>>>  drivers/usb/host/Kconfig      |   9 -
>>>>  drivers/usb/host/Makefile     |   1 -
>>>>  drivers/usb/host/ehci-tegra.c | 604 ----------------------------------
>>>>  3 files changed, 614 deletions(-)
>>>>  delete mode 100644 drivers/usb/host/ehci-tegra.c
>>>>
>>>> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
>>>> index 31e59309da1f..9c9e6ff9c43a 100644
>>>> --- a/drivers/usb/host/Kconfig
>>>> +++ b/drivers/usb/host/Kconfig
>>>> @@ -266,15 +266,6 @@ config USB_EHCI_HCD_AT91
>>>>  	  Enables support for the on-chip EHCI controller on
>>>>  	  Atmel chips.
>>>>  
>>>> -config USB_EHCI_TEGRA
>>>> -	tristate "NVIDIA Tegra HCD support"
>>>> -	depends on ARCH_TEGRA
>>>> -	select USB_EHCI_ROOT_HUB_TT
>>>> -	select USB_TEGRA_PHY
>>>> -	help
>>>> -	  This driver enables support for the internal USB Host Controllers
>>>> -	  found in NVIDIA Tegra SoCs. The controllers are EHCI compliant.
>>>
>>> For people upgrading from earlier kernel versions, do you think it
>>> would help to add a pointer here telling them which Kconfig option
>>> they need to enable now in order to get this functionality?
>>
>> Could you please clarify what do you mean by the "pointer"?
> 
> See the entries for USB_CNS3XXX_EHCI, USB_OCTEON_EHCI, 
> USB_OHCI_HCD_OMAP3, and USB_OHCI_SH in that Kconfig file for examples.

I'll point the deprecated USB_EHCI_TEGRA to the CI driver in a v2, thanks.