Hi Laurent,
On Thu, Mar 1, 2012 at 6:37 PM, Laurent Pinchart
wrote:
> I'll try that then. How expensive is the iommu_attach_device() (and detach)
> operation in terms of CPU time ?
omap_iommu_attach() basically enables the iommu clock and configures
that IP block.
I suspect it's negligible but
Hi Ohad,
On Monday 27 February 2012 09:00:51 Ohad Ben-Cohen wrote:
> On Mon, Feb 27, 2012 at 12:47 AM, Laurent Pinchart wrote:
> > I'm asking about the probe deferral mechanism. The omap3-isp driver will
> > still call iommu_attach_device() in its probe function. What will happen
> > then ? Will i
On Sun, Feb 26, 2012 at 12:14:14PM +0200, Ohad Ben-Cohen wrote:
> omap3isp depends on omap's iommu and will fail to probe if
> initialized before it (which always happen if they are builtin).
>
> Make omap's iommu subsys_initcall as an interim solution until
> the probe deferral mechanism is merge
On Mon, Feb 27, 2012 at 09:00:51AM +0200, Ohad Ben-Cohen wrote:
> On Mon, Feb 27, 2012 at 12:47 AM, Laurent Pinchart
> > That's what the comment in the Makefile is for ;-) I don't think it's a
> > perfect solution either, but it avoids playing with the various initcalls.
> > The
> > OMAP3 IOMMU is
Hi Laurent,
On Mon, Feb 27, 2012 at 12:47 AM, Laurent Pinchart
wrote:
> I'm asking about the probe deferral mechanism. The omap3-isp driver will still
> call iommu_attach_device() in its probe function. What will happen then ? Will
> it return an error ? On what basis will it do so ?
Yes, iommu_
Hi Ohad,
On Sunday 26 February 2012 20:30:17 Ohad Ben-Cohen wrote:
> On Sun, Feb 26, 2012 at 7:34 PM, Laurent Pinchart wrote:
> > On Sunday 26 February 2012 12:14:14 Ohad Ben-Cohen wrote:
> >> omap3isp depends on omap's iommu and will fail to probe if
> >> initialized before it (which always happe
Hi Laurent,
On Sun, Feb 26, 2012 at 7:34 PM, Laurent Pinchart
wrote:
> On Sunday 26 February 2012 12:14:14 Ohad Ben-Cohen wrote:
>> omap3isp depends on omap's iommu and will fail to probe if
>> initialized before it (which always happen if they are builtin).
>>
>> Make omap's iommu subsys_initcal
Hi Ohad,
On Sunday 26 February 2012 12:14:14 Ohad Ben-Cohen wrote:
> omap3isp depends on omap's iommu and will fail to probe if
> initialized before it (which always happen if they are builtin).
>
> Make omap's iommu subsys_initcall as an interim solution until
> the probe deferral mechanism is m
omap3isp depends on omap's iommu and will fail to probe if
initialized before it (which always happen if they are builtin).
Make omap's iommu subsys_initcall as an interim solution until
the probe deferral mechanism is merged.
Reported-by: James
Debugged-by: Laurent Pinchart
Signed-off-by: Ohad
