linux-kernel - Re: [PATCH v3 0/4] acpi: Store _PLD information and convert users

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Date:   Fri, 17 Dec 2021 16:11:35 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Prashant Malani <pmalani@...omium.org>,
        linux-acpi@...r.kernel.org, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/4] acpi: Store _PLD information and convert users

On Fri, Dec 17, 2021 at 04:24:11PM +0300, Heikki Krogerus wrote:
> Hi,
> 
> The _PLD buffer is no longer stored as requested by Rafael, so the
> drivers will need to continue to evaluate the _PLD if they need it.
> 
> The stored locations will therefore only contain the list of other
> devices that share the location, but that is most important, and in
> practice the main goal of the series in any case.
> 
> 
> v2 cover letter:
> 
> I'm now using the helpers device_match_acpi_dev() and
> device_match_fwnode() like Andy suggested. No other changes.
> 
> 
> The original cover letter:
> 
> This removes the need for the drivers to always separately evaluate
> the _PLD. With the USB Type-C connector and USB port mapping this
> allows us to start using the component framework and remove the custom
> APIs.
> 
> So far the only users of the _PLD information have been the USB
> drivers, but it seems it will be used also at least in some camera
> drivers later. These nevertheless touch mostly USB drivers.
> 
> Rafael, is it still OK if Greg takes these?
> 
> Prashant, can you test these?

I guess I have given tag, anyway here we are, FWIW,
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

P.S. AFAICS only the first patch was slightly changed.


> Heikki Krogerus (4):
>   acpi: Store the known device locations
>   usb: Link the ports to the connectors they are attached to
>   usb: typec: port-mapper: Convert to the component framework
>   usb: Remove usb_for_each_port()
> 
>  Documentation/ABI/testing/sysfs-bus-usb |   9 +
>  drivers/acpi/scan.c                     |  77 +++++++
>  drivers/usb/core/port.c                 |  32 +++
>  drivers/usb/core/usb.c                  |  46 ----
>  drivers/usb/typec/Makefile              |   3 +-
>  drivers/usb/typec/class.c               |   2 -
>  drivers/usb/typec/class.h               |  10 +-
>  drivers/usb/typec/port-mapper.c         | 280 +++---------------------
>  include/acpi/acpi_bus.h                 |  19 ++
>  include/linux/usb.h                     |   9 -
>  include/linux/usb/typec.h               |  12 -
>  11 files changed, 180 insertions(+), 319 deletions(-)
> 
> -- 
> 2.34.1
> 

-- 
With Best Regards,
Andy Shevchenko