linux-kernel - Re: [PATCH v1 0/2] acpi: Remove acpi_release

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Date:   Wed, 27 Apr 2022 20:46:11 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:ULTRA-WIDEBAND (UWB) SUBSYSTEM:" 
        <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v1 0/2] acpi: Remove acpi_release_memory()

On Tue, Apr 26, 2022 at 1:43 PM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Mon, Apr 25, 2022 at 02:45:42PM +0300, Heikki Krogerus wrote:
> > Hi,
> >
> > It seems there never were and there never will be actual devices that
> > expose the UCSI ACPI mailbox interface. There are now PD controllers
> > that support the UCSI interface, but they do not use the ACPI mailbox.
> >
> > So there is no point in mapping the mailbox with ioremap(), we can
> > just use memremap(). That should make it possible to also remove the
> > function acpi_release_memory(). That function was only there to make
> > it possible to use ioremap() in the UCSI ACPI driver.
> >
> > thanks,
> >
> > Heikki Krogerus (2):
> >   usb: typec: ucsi: acpi: Map the mailbox with memremap()
> >   acpi: Remove the helper for deactivating memory region
> >
> >  drivers/acpi/osl.c                 | 86 ------------------------------
> >  drivers/usb/typec/ucsi/ucsi_acpi.c | 19 ++-----
> >  include/linux/acpi.h               |  3 --
> >  3 files changed, 4 insertions(+), 104 deletions(-)
> >
> > --
> > 2.35.1
> >
>
> Look good to me, Rafael, want me to take this through the USB tree?  Or
> if you want to take it through the USB tree, here's my reviewed-by:
> either is fine with me.
>
> Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

I've taken this into the ACPI tree (for 5.19) with your R-by, thanks!