linux-kernel - Re: [PATCH 1/2] of_pci_irq: add a check to fallback to standard device tree parsing

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Message-ID: <1517968688.31641.12.camel@mtkswgap22>
Date:   Wed, 7 Feb 2018 09:58:08 +0800
From:   Ryder Lee <ryder.lee@...iatek.com>
To:     Arnd Bergmann <arnd@...db.de>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:     "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>, <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-mediatek@...ts.infradead.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Frank Rowand <frowand.list@...il.com>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/2] of_pci_irq: add a check to fallback to standard
 device tree parsing

Hi, Arnd

On Wed, 2018-02-07 at 09:31 +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2018-02-06 at 13:42 +0800, Ryder Lee wrote:
> > Thanks for explanation.
> > 
> > So I guess the better way to achieve my aim - one IRQ per slot that is
> > connected to all INTx and get propagated through the bridges (and for
> > those root ports own interrupts (PME ..)} is to add interrupt-map
> > properties in both parent and root port nodes.
> > 
> > Something like this: https://patchwork.kernel.org/patch/9970923// ,right?
> 
> Yup.
> 
> Cheers,
> Ben.
> 

Do you have any thoughts on the original approach? If you are okay with
it, I will resend the DT patch.

Thanks.