[U-Boot] [PATCH v2] spl: Introduce SPL_DM_GPIO Kconfig define

[Lukasz Majewski]

Hi Simon,

> Hi Lukasz,
> 
> On Mon, 14 Oct 2019 at 06:41, Lukasz Majewski <lukma at denx.de> wrote:
> >
> > Hi Simon,
> >  
> > > Hi Lukasz,
> > >
> > > On Wed, 9 Oct 2019 at 03:02, Lukasz Majewski <lukma at denx.de>
> > > wrote:  
> > > >
> > > > Dear Tom,
> > > >  
> > > > > This define indicates if DM_GPIO shall be supported in SPL.
> > > > > This allows proper operation of DM converted GPIO drivers in
> > > > > SPL, which use boards.
> > > > >
> > > > > Signed-off-by: Lukasz Majewski <lukma at denx.de>
> > > > > ---
> > > > >
> > > > > Changes in v2:
> > > > > - Add dependency on DM_GPIO
> > > > >  
> > > >
> > > > Tom, are there any issues preventing this patch from being
> > > > applied to -master?  
> > >
> > > This does not actually define DM_GPIO anywhere though, so this is
> > > unused.  
> >
> > The goal of this patch is to introduce in Kconfig a
> > CONFIG_SPL_DM_GPIO. This define would be needed anyway, no matter
> > if you perform the changes from [1].
> >
> > This Kconfig define is necessary for the XEA board (i.MX28 based
> > one), which uses OF_PLATDATA in SPL excessively to fit into size
> > constraints.
> >
> > To be more precise the mxs_gpio.c driver uses
> > #if CONFIG_IS_ENABLED(DM_GPIO) to provide DM GPIO support in SPL
> > with OF_PLATDATA.
> >
> >  
> > >
> > > As it happens I sent a similar patch[1], but it doesn't work. I'll
> > > try again.  
> >
> > It would be great if we could have [1] not causing build breaks.
> > However, for my used case it would be enough to have the Kconfig
> > definition of CONFIG_SPL_DM_GPIO (as I'm using OF_PLATDATA) with it.
> >
> > Simon, if you don't have time to do the fix for [1] I would opt for
> > pulling this patch (to just add proper Kconfig define).  
> 
> I have had a crack at this here:
> 
> https://gitlab.denx.de/u-boot/custodians/u-boot-dm/commit/a6d15bbd9e4e7684dd47d21817df85915f28cbab
> 
> I expect to send this series along with this patch at the end of this
> week.

If I may ask - have you made any progress on this?

> 
> >  
> > >  
> > > >  
> > > > >  common/spl/Kconfig | 6 ++++++
> > > > >  1 file changed, 6 insertions(+)
> > > > >
> > > > > diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> > > > > index f467eca2be..e3df8efa7e 100644
> > > > > --- a/common/spl/Kconfig
> > > > > +++ b/common/spl/Kconfig
> > > > > @@ -452,6 +452,12 @@ config SPL_DMA_SUPPORT
> > > > >         the CPU moving the data. Enable this option to build
> > > > > the drivers in drivers/dma as part of an SPL build.
> > > > >
> > > > > +config SPL_DM_GPIO
> > > > > +     bool "Support Driver Model GPIO drivers"
> > > > > +     depends on SPL_GPIO_SUPPORT && DM_GPIO
> > > > > +     help
> > > > > +       Enable support for Driver Model based GPIO drivers in
> > > > > SPL. +
> > > > >  config SPL_DRIVERS_MISC_SUPPORT
> > > > >       bool "Support misc drivers"
> > > > >       help  
> > > >  
> > >
> > > Regards,
> > > SImon
> > >
> > > [1] http://patchwork.ozlabs.org/patch/1167276/  
> >  
> 
> Regards,
> Simon

Best regards,

Lukasz Majewski

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