On Fri, May 8, 2009 at 7:10 AM, Hiroshi DOYU <[email protected]> wrote:
> Hi Felipe,
>
> From: ext Felipe Contreras <[email protected]>
> Subject: Re: [PATCH 3/6] omap iommu: omap3 iommu device registration
> Date: Thu, 7 May 2009 22:05:00 +0200
>
>> On Tue, May 5, 2009 at 3:47 PM, Hiroshi DOYU <[email protected]> wrote:
>> > Signed-off-by: Hiroshi DOYU <[email protected]>
>> > ---
>> >
>> >  arch/arm/mach-omap2/omap3-iommu.c |  105 
>> > +++++++++++++++++++++++++++++++++++++
>> >  1 files changed, 105 insertions(+), 0 deletions(-)
>> >  create mode 100644 arch/arm/mach-omap2/omap3-iommu.c
>> >
>> > diff --git a/arch/arm/mach-omap2/omap3-iommu.c 
>> > b/arch/arm/mach-omap2/omap3-iommu.c
>> > new file mode 100644
>> > index 0000000..367f36a
>> > --- /dev/null
>> > +++ b/arch/arm/mach-omap2/omap3-iommu.c
>> > @@ -0,0 +1,105 @@
>> > +/*
>> > + * omap iommu: omap3 device registration
>> > + *
>> > + * Copyright (C) 2008-2009 Nokia Corporation
>> > + *
>> > + * Written by Hiroshi DOYU <[email protected]>
>> > + *
>> > + * This program is free software; you can redistribute it and/or modify
>> > + * it under the terms of the GNU General Public License version 2 as
>> > + * published by the Free Software Foundation.
>> > + */
>> > +
>> > +#include <linux/platform_device.h>
>> > +
>> > +#include <mach/iommu.h>
>> > +
>> > +#define OMAP3_MMU1_BASE        0x480bd400
>> > +#define OMAP3_MMU2_BASE        0x5d000000
>> > +#define OMAP3_MMU1_IRQ 24
>> > +#define OMAP3_MMU2_IRQ 28
>> > +
>> > +static struct resource omap3_iommu_res[] = {
>> > +       { /* Camera ISP MMU */
>> > +               .start          = OMAP3_MMU1_BASE,
>> > +               .end            = OMAP3_MMU1_BASE + MMU_REG_SIZE - 1,
>> > +               .flags          = IORESOURCE_MEM,
>> > +       },
>> > +       {
>> > +               .start          = OMAP3_MMU1_IRQ,
>> > +               .flags          = IORESOURCE_IRQ,
>> > +       },
>> > +       { /* IVA2.2 MMU */
>> > +               .start          = OMAP3_MMU2_BASE,
>> > +               .end            = OMAP3_MMU2_BASE + MMU_REG_SIZE - 1,
>> > +               .flags          = IORESOURCE_MEM,
>> > +       },
>> > +       {
>> > +               .start          = OMAP3_MMU2_IRQ,
>> > +               .flags          = IORESOURCE_IRQ,
>> > +       },
>> > +};
>> > +#define NR_IOMMU_RES (ARRAY_SIZE(omap3_iommu_res) / 2)
>>
>> <snip/>
>>
>> > +               err = platform_device_add_resources(pdev,
>> > +                                   &omap3_iommu_res[2 * i], NR_IOMMU_RES);
>>
>> This is wrong. In this particular case NR_IOMMU_RES is 2, but not
>> because there's 2 resources: MEM and IRQ, but because there's 2 iommu
>> devices: isp and iva2.
>
> Does the following make sense?
>
> +#define NR_IOMMU_RES 2
>
> ....
>
> +               err = platform_device_add_resources(pdev,
> +                                   omap3_iommu_res +  i * NR_IOMMU_RES, 
> NR_IOMMU_RES);

Yeap, also:

> +               err = platform_device_add_resources(pdev, omap3_iommu_res +  
> i * 2, 2);

-- 
Felipe Contreras
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