RE: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-09 Thread Kukjin Kim
Doug Anderson wrote:
> 
> Tomasz / Olof,
> 
Hi Doug, Tomasz and Olof

> On Thu, May 9, 2013 at 2:45 AM, Tomasz Figa  wrote:
> >> Nothing stops you from doing that on your own. I tend to push back
> >> onto the maintainers to get them engaged in their own housekeeping,
> >> but anyone is free to :)
> 
> I will probably leave this to the maintainers at this point...  ;)
> 


> >> Yeah, it should -- this is just in transition since 5440 was first out
> >> of the gate with pinctrl.
> >
> > AFAIK, Exynos5440 contains a completely different pin controller block,
> which
> > is not compatible with pinctrl-samsung driver, so I don't see any point
> of
> > moving it under PINCTRL_EXYNOS, which is currently used for Exynos 4210,
> 4x12
> > and 5250, but will be also extended with driver data for S5PV210 as
well.
> >
> > I'd say that CPU_EXYNOS4210, SOC_EXYNOS4212, SOC_EXYNOS4412 and
> SOC_EXYNOS5250
> > should select PINCTRL_EXYNOS and SOC_EXYNOS5440 should be left as is,
> > selecting PINCTRL_EXYNOS5440.
> 
> OK, sounds reasonable.  I didn't dig into all of the details of the
> 5440 pin control driver and don't have a user manual in front of me.
> I will do as you say.
> 
Tomasz is right. The current exynos pinctrl stuff is quite different with
exynos5440 pinctrl, it means there is no reason to move exynos5440 pinctrl
under exynos pinctrl. Of course, both can be built together without problem.

> New patch coming shortly.
> 
Thanks, the PINCTRL_EXYNOS can be moved into under SoC condition not board.

- Kukjin

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-09 Thread Doug Anderson
Tomasz / Olof,

On Thu, May 9, 2013 at 2:45 AM, Tomasz Figa  wrote:
>> Nothing stops you from doing that on your own. I tend to push back
>> onto the maintainers to get them engaged in their own housekeeping,
>> but anyone is free to :)

I will probably leave this to the maintainers at this point...  ;)

>> Yeah, it should -- this is just in transition since 5440 was first out
>> of the gate with pinctrl.
>
> AFAIK, Exynos5440 contains a completely different pin controller block, which
> is not compatible with pinctrl-samsung driver, so I don't see any point of
> moving it under PINCTRL_EXYNOS, which is currently used for Exynos 4210, 4x12
> and 5250, but will be also extended with driver data for S5PV210 as well.
>
> I'd say that CPU_EXYNOS4210, SOC_EXYNOS4212, SOC_EXYNOS4412 and SOC_EXYNOS5250
> should select PINCTRL_EXYNOS and SOC_EXYNOS5440 should be left as is,
> selecting PINCTRL_EXYNOS5440.

OK, sounds reasonable.  I didn't dig into all of the details of the
5440 pin control driver and don't have a user manual in front of me.
I will do as you say.

New patch coming shortly.

-Doug
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-09 Thread Tomasz Figa
Hi Doug, Olof,

On Wednesday 08 of May 2013 12:33:34 Olof Johansson wrote:
> Hi,
> 
> On Wed, May 8, 2013 at 11:48 AM, Doug Anderson  
wrote:
> > Olof,
> > 
> > On Wed, May 8, 2013 at 11:19 AM, Olof Johansson  wrote:
> >> Seems like this should be selected by the SoC (ARCH_EXYNOS5) instead
> >> of the board. Actually, I'm not sure we need the board Kconfig entry
> >> long-term; all boards will be dt-only.
> > 
> > Good point.  Hopefully someone at Samsung can work on removing the
> > board itself?  If you'd like me to take this on then let me know and I
> > can put it on my list.
> 
> Nothing stops you from doing that on your own. I tend to push back
> onto the maintainers to get them engaged in their own housekeeping,
> but anyone is free to :)
> 
> > I'm happy to resubmit my patch under ARCH_EXYNOS5.  I'll move the
> > exynos4 one at the same time.
> 
> Great.
> 
> > I'm going to make the assumption that PINCTRL_EXYNOS and
> > PINCTRL_EXYNOS5440 can happily coexist.  Certainly I've got both
> > defined in my tree right now and nothing blows up.  I haven't tested
> > on 5440 but things ought to be handled by "compatible" checks, right?
> 
> Yes, if they can't coexist then that's a bug.
> 
> > I'll also assume that eventually someone will move PINCTRL_EXYNOS5440
> > into PINCTRL_EXYNOS.  If PINCTRL_EXYNOS5440 won't eventually move
> > under PINCTRL_EXYNOS then it makes less sense to define PINCTRL_EXYNOS
> > for all exynos parts.
> 
> Yeah, it should -- this is just in transition since 5440 was first out
> of the gate with pinctrl.

AFAIK, Exynos5440 contains a completely different pin controller block, which 
is not compatible with pinctrl-samsung driver, so I don't see any point of 
moving it under PINCTRL_EXYNOS, which is currently used for Exynos 4210, 4x12 
and 5250, but will be also extended with driver data for S5PV210 as well.

I'd say that CPU_EXYNOS4210, SOC_EXYNOS4212, SOC_EXYNOS4412 and SOC_EXYNOS5250 
should select PINCTRL_EXYNOS and SOC_EXYNOS5440 should be left as is, 
selecting PINCTRL_EXYNOS5440.

Best regards,
-- 
Tomasz Figa
Samsung Poland R&D Center
SW Solution Development, Kernel and System Framework

--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-08 Thread Olof Johansson
Hi,


On Wed, May 8, 2013 at 11:48 AM, Doug Anderson  wrote:
> Olof,
>
> On Wed, May 8, 2013 at 11:19 AM, Olof Johansson  wrote:
>> Seems like this should be selected by the SoC (ARCH_EXYNOS5) instead
>> of the board. Actually, I'm not sure we need the board Kconfig entry
>> long-term; all boards will be dt-only.
>
> Good point.  Hopefully someone at Samsung can work on removing the
> board itself?  If you'd like me to take this on then let me know and I
> can put it on my list.

Nothing stops you from doing that on your own. I tend to push back
onto the maintainers to get them engaged in their own housekeeping,
but anyone is free to :)

> I'm happy to resubmit my patch under ARCH_EXYNOS5.  I'll move the
> exynos4 one at the same time.

Great.

> I'm going to make the assumption that PINCTRL_EXYNOS and
> PINCTRL_EXYNOS5440 can happily coexist.  Certainly I've got both
> defined in my tree right now and nothing blows up.  I haven't tested
> on 5440 but things ought to be handled by "compatible" checks, right?

Yes, if they can't coexist then that's a bug.

> I'll also assume that eventually someone will move PINCTRL_EXYNOS5440
> into PINCTRL_EXYNOS.  If PINCTRL_EXYNOS5440 won't eventually move
> under PINCTRL_EXYNOS then it makes less sense to define PINCTRL_EXYNOS
> for all exynos parts.

Yeah, it should -- this is just in transition since 5440 was first out
of the gate with pinctrl.



-Olof
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-08 Thread Doug Anderson
Olof,

On Wed, May 8, 2013 at 11:19 AM, Olof Johansson  wrote:
> Seems like this should be selected by the SoC (ARCH_EXYNOS5) instead
> of the board. Actually, I'm not sure we need the board Kconfig entry
> long-term; all boards will be dt-only.

Good point.  Hopefully someone at Samsung can work on removing the
board itself?  If you'd like me to take this on then let me know and I
can put it on my list.

I'm happy to resubmit my patch under ARCH_EXYNOS5.  I'll move the
exynos4 one at the same time.

I'm going to make the assumption that PINCTRL_EXYNOS and
PINCTRL_EXYNOS5440 can happily coexist.  Certainly I've got both
defined in my tree right now and nothing blows up.  I haven't tested
on 5440 but things ought to be handled by "compatible" checks, right?

I'll also assume that eventually someone will move PINCTRL_EXYNOS5440
into PINCTRL_EXYNOS.  If PINCTRL_EXYNOS5440 won't eventually move
under PINCTRL_EXYNOS then it makes less sense to define PINCTRL_EXYNOS
for all exynos parts.

-Doug
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html


Re: [PATCH] ARM: exynos: Select PINCTRL_EXYNOS for exynos5

2013-05-08 Thread Olof Johansson
Hi,

On Wed, May 8, 2013 at 10:32 AM, Doug Anderson  wrote:
> If you've got MACH_EXYNOS5_DT but not MACH_EXYNOS4_DT you'll be
> missing the pincontrol definitions.  Add them for exynos5.
>
> Signed-off-by: Doug Anderson 
> ---
>  arch/arm/mach-exynos/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
> index 6e77432..cdcd7fa 100644
> --- a/arch/arm/mach-exynos/Kconfig
> +++ b/arch/arm/mach-exynos/Kconfig
> @@ -428,6 +428,8 @@ config MACH_EXYNOS5_DT
> depends on ARCH_EXYNOS5
> select ARM_AMBA
> select CLKSRC_OF
> +   select PINCTRL
> +   select PINCTRL_EXYNOS

Nit:

Seems like this should be selected by the SoC (ARCH_EXYNOS5) instead
of the board. Actually, I'm not sure we need the board Kconfig entry
long-term; all boards will be dt-only.


-Olof
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html