On Thu, Sep 06, 2012 at 22:43:03, Balbi, Felipe wrote:
> Hi,
>
> On Thu, Sep 06, 2012 at 09:04:58PM +0530, Vaibhav Hiremath wrote:
> >
> >
> > On 9/6/2012 8:25 PM, Kishon Vijay Abraham I wrote:
> > > The mailbox register for usb otg in omap is present in control module.
> > > On detection of any events VBUS or ID, this register should be written
> > > to send the notification to musb core.
> > >
> > > Till we have a separate control module driver to write to control module,
> > > omap2430 will handle the register writes to control module by itself. So
> > > a new address space to represent this control module register is added
> > > to usb_otg_hs.
> > >
> > > Cc: Benoit Cousson <b-cousson@xxxxxx>
> > > Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> > > ---
> > > arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 5 +++++
> > > 1 file changed, 5 insertions(+)
> > >
> > > diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> > > index 242aee4..02341bc 100644
> > > --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> > > +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
> > > @@ -5890,6 +5890,11 @@ static struct omap_hwmod_addr_space omap44xx_usb_otg_hs_addrs[] = {
> > > .pa_end = 0x4a0ab003,
> > > .flags = ADDR_TYPE_RT
> > > },
> > > + {
> > > + .pa_start = 0x4a00233c,
> > > + .pa_end = 0x4a00233f,
> > > + .flags = ADDR_TYPE_RT
> > > + },
> >
> > I do not have any objection/comment here, but I believe this is control
> > module address space required for USB module, right?
> > I am not sure this is right way of accessing control module space.
> > Actually Control Module Access required for drivers is one of the
> > blocking issue we have currently.
> >
> > Also there was some effort put up by 'Konstantine' to convert Control
> > module to MFD driver, I haven't seen any further update on it. But it
> > would be good to check with him.
>
> this was an agreement with Benoit since we already lost a couple merge
> windows for this patchset. We agreed to wait until -rc4 for SCM driver
> and if it wasn't ready, we'd go ahead with this and SCM author would fix
> it up on a patch converting users to new SCM driver.
>
Understood and thanks for confirming.
Thanks,
Vaibhav
> --
> balbi
>
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