linux-kernel - Re: [PATCH v3 0/9] Support Runtime PM and host mode by Tegra ChipIdea USB driver

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Date:   Tue, 29 Dec 2020 05:16:45 +0000
From:   Peter Chen <peter.chen@....com>
To:     Dmitry Osipenko <digetx@...il.com>
CC:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Felipe Balbi <balbi@...nel.org>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Peter Geis <pgwipeout@...il.com>,
        Ion Agorria <ion@...rria.com>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/9] Support Runtime PM and host mode by Tegra ChipIdea
 USB driver

On 20-12-18 15:02:37, Dmitry Osipenko wrote:
> This series implements Runtime PM support for the Tegra ChipIdea USB driver.
> It also squashes the older ehci-tegra driver into the ChipIdea driver, hence
> the RPM is supported by both UDC and host controllers, secondly this opens
> opportunity for implementing OTG support in the future.
> 
> Patchset was tested on various Tegra20, Tegra30 and Tegra124 devices.
> Thanks to Peter Geis, Matt Merhar, Nicolas Chauvet and Ion Agorria for
> helping with the extensive and productive testing!
> 
> Changelog:
> 
> v3: - Replaced "goto" with if-statements as was suggested by Thierry Reding.
> 
>     - Improved wording of the deprecated Kconfig entry as was suggested
>       by Alan Stern.
> 
>     - Added ACKs from Thierry Reding and Alan Stern.
> 
>     - Added a new minor patch "Specify TX FIFO threshold in UDC SoC info"
>       just for completeness, since we can now switch OTG to host mode in
>       the ChipIdea driver. Although, OTG support remains a work-in-progress
>       for now.
> 
> v2: - Improved comments in the code as it was suggested by Peter Chen and
>       Sergei Shtylyov for v1.
> 
>     - Replaced mdelay() with fsleep() and made ci->hdc to reset to NULL in
>       a error code path, like it was suggested by Peter Chen.
> 
>     - Redirected deprecated USB_EHCI_TEGRA Kconfig entry to USB_CHIPIDEA_TEGRA
>       as was suggested by Alan Stern.
> 
>     - Improved commit message and added ACK from Thierry Reding to the patch
>       that removes MODULE_ALIAS.
> 
>     - Fixed UDC PHY waking up on ASUS TF201 tablet device by utilizing
>       additional VBUS sensor. This was reported and tested by Ion Agorria.
> 
>     - Added t-b from Ion Agorria.
> 
> Dmitry Osipenko (8):
>   usb: phy: tegra: Add delay after power up
>   usb: phy: tegra: Support waking up from a low power mode
>   usb: chipidea: tegra: Remove MODULE_ALIAS
>   usb: chipidea: tegra: Rename UDC to USB
>   usb: chipidea: tegra: Support runtime PM
>   usb: chipidea: tegra: Specify TX FIFO threshold in UDC SoC info
>   usb: host: ehci-tegra: Remove the driver
>   ARM: tegra_defconfig: Enable USB_CHIPIDEA_HOST and remove
>     USB_EHCI_TEGRA
> 
> Peter Geis (1):
>   usb: chipidea: tegra: Support host mode

Chipidea related (patch 3-7) are applied, thanks.

Peter
> 
>  arch/arm/configs/tegra_defconfig     |   3 +-
>  drivers/usb/chipidea/Kconfig         |   3 +-
>  drivers/usb/chipidea/ci_hdrc_tegra.c | 344 ++++++++++++---
>  drivers/usb/chipidea/core.c          |  10 +-
>  drivers/usb/chipidea/host.c          | 104 ++++-
>  drivers/usb/host/Kconfig             |  10 +-
>  drivers/usb/host/Makefile            |   1 -
>  drivers/usb/host/ehci-tegra.c        | 604 ---------------------------
>  drivers/usb/phy/phy-tegra-usb.c      | 103 ++++-
>  include/linux/usb/chipidea.h         |   6 +
>  include/linux/usb/tegra_usb_phy.h    |   2 +
>  11 files changed, 518 insertions(+), 672 deletions(-)
>  delete mode 100644 drivers/usb/host/ehci-tegra.c
> 
> -- 
> 2.29.2
> 

-- 

Thanks,
Peter Chen