linux-kernel - Re: [PATCH 01/11] ahci: Get rid of host->iomap usage

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Date:	Wed, 03 Mar 2010 13:45:36 -0500
From:	Jeff Garzik <jgarzik@...ox.com>
To:	Anton Vorontsov <avorontsov@...mvista.com>
CC:	Sergei Shtylyov <sshtylyov@...sta.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/11] ahci: Get rid of host->iomap usage

On 03/03/2010 12:17 PM, Anton Vorontsov wrote:
> Currently the driver uses host->iomap to store all the iomapped BARs
> of a PCI device (while AHCI devices actually use just a single memory
> window).
>
> We're going to teach AHCI to work with non-PCI buses, so there are two
> options to make this work:
>
> 1. "fake" host->iomap array for non-PCI devices, and place the needed
>     address at iomap[AHCI_PCI_BAR];
> 2. Get rid of host->iomap usage, instead introduce a private mmio
>     field.
>
> This patch implements the second option.
>
> Signed-off-by: Anton Vorontsov<avorontsov@...mvista.com>
> ---
>   drivers/ata/ahci.c |   34 ++++++++++++++++++++--------------
>   1 files changed, 20 insertions(+), 14 deletions(-)

Does platform code not contain any devres support?

At a minimum, you should be using devm_ioremap(), yes?

	Jeff



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