linux-kernel - Re: [PATCH V2 2/2] PCI: generic: Add msi

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Date:	Wed, 12 Nov 2014 18:37:09 +0700
From:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
To:	Srikanth Thokala <sriku.linux@...il.com>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>, <liviu.dudau@....com>,
	<lorenzo.pieralisi@....com>, <will.deacon@....com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 2/2] PCI: generic: Add msi_parent DT binding



On 11/12/14 14:09, Srikanth Thokala wrote:
>>> @@ -122,9 +123,19 @@ static int gen_pci_config_write(struct pci_bus *bus, unsigned int devfn,
>>> >>         return PCIBIOS_SUCCESSFUL;
>>> >>  }
>>> >>
>>> >>+static int gen_pci_set_msi_parent(struct pci_bus *bus)
>>> >>+{
>>> >>+       struct gen_pci *pci = bus_to_gen_pci(bus);
>>> >>+
>>> >>+       bus->msi = pci->mchip;
>>> >>+
>>> >>+       return PCIBIOS_SUCCESSFUL;
>>> >>+}
>>> >>+
>>> >>  static struct pci_ops gen_pci_ops = {
>>> >>         .read   = gen_pci_config_read,
>>> >>         .write  = gen_pci_config_write,
>>> >>+       .set_msi_parent = gen_pci_set_msi_parent,
>> >
>> >We assign the msi chip through add_bus() call, do we still need this?
>> >
> There are series of patches from Yijing Wang around this.  You may have
> to go through them.
>
> Srikanth
>

Hm.. I was not aware of this patch. Thanks for the pointer. I'll check 
them out.

Suravee
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