linux-kernel - RE: [PATCH v9 5/7] ACPI: Translate the I/O range of non-MMIO devices before scanning

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Date:   Tue, 4 Jul 2017 16:22:11 +0000
From:   Gabriele Paoloni <gabriele.paoloni@...wei.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
CC:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will.deacon@....com" <will.deacon@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "frowand.list@...il.com" <frowand.list@...il.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "brian.starkey@....com" <brian.starkey@....com>,
        "olof@...om.net" <olof@...om.net>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        Linuxarm <linuxarm@...wei.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "minyard@....org" <minyard@....org>,
        John Garry <john.garry@...wei.com>,
        "xuwei (O)" <xuwei5@...ilicon.com>
Subject: RE: [PATCH v9 5/7] ACPI: Translate the I/O range of non-MMIO
 devices before scanning

Hi Andy

[...]

> 
> You may do it on stack. Define your cell statically (but not const)
> and apply resources just before mfd_add_devices() call.

Ok thanks got it

> There are examples in the existing drivers. Intel LPC comes to my mind
> and perhaps PMC (Broxton), though latter has too much other stuff
> around.

Uh yes I see now in lpc_ich.c (base address is read from PCI config space
and resources are set accordingly).

Cheers
Gab

> 
> --
> With Best Regards,
> Andy Shevchenko