linux-kernel - Re: [PATCH] arm64: Split out platform options to separate Kconfig

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Date:	Fri, 17 Jul 2015 10:27:45 -0700
From:	Olof Johansson <olof@...om.net>
To:	Catalin Marinas <catalin.marinas@....com>
Cc:	will.deacon@....com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm64: Split out platform options to separate Kconfig

On Wed, Jul 15, 2015 at 02:20:14PM +0100, Catalin Marinas wrote:
> On Wed, Jul 15, 2015 at 07:10:21AM -0400, Olof Johansson wrote:
> > Let's move out the platform Kconfig entries to a separate file, since these
> > changes usually get moved through arm-soc instead of the arm64 arch tree, and
> > this will lead to fewer conflicts
> > 
> > Signed-off-by: Olof Johansson <olof@...om.net>
> > ---
> > 
> > Will, Catalin, I'll merge this through arm-soc if I get your acks. Thanks!
> 
> That's fine by me.
> 
> Acked-by: Catalin Marinas <catalin.marinas@....com>

Cool, applying here then!

> > +config ARCH_TEGRA
> > +	bool "NVIDIA Tegra SoC Family"
> > +	select ARCH_HAS_RESET_CONTROLLER
> > +	select ARCH_REQUIRE_GPIOLIB
> > +	select CLKDEV_LOOKUP
> > +	select CLKSRC_MMIO
> > +	select CLKSRC_OF
> > +	select GENERIC_CLOCKEVENTS
> > +	select HAVE_CLK
> > +	select PINCTRL
> > +	select RESET_CONTROLLER
> > +	help
> > +	  This enables support for the NVIDIA Tegra SoC family.
> > +
> > +config ARCH_TEGRA_132_SOC
> > +	bool "NVIDIA Tegra132 SoC"
> > +	depends on ARCH_TEGRA
> > +	select PINCTRL_TEGRA124
> > +	select USB_ULPI if USB_PHY
> > +	select USB_ULPI_VIEWPORT if USB_PHY
> > +	help
> > +	  Enable support for NVIDIA Tegra132 SoC, based on the Denver
> > +	  ARMv8 CPU.  The Tegra132 SoC is similar to the Tegra124 SoC,
> > +	  but contains an NVIDIA Denver CPU complex in place of
> > +	  Tegra124's "4+1" Cortex-A15 CPU complex.
> 
> Also, please make sure we won't get any more Kconfig entries for SoC
> variations on arm64 (still waiting for the Tegra folk to remove
> ARCH_TEGRA_132_SOC; this seems to be one of the very few SoCs that use
> Makefile obj-y tricks to build clock, memory controller drivers instead
> of dedicated driver Kconfig entries and they aren't even consistent:
> PINCTRL_TEGRA124).

Yep. I'd imagine at some point some platforms will want to segment out
major families (and in particular server vs mobile, etc) for dependency
reasons, but right now there should be little need for it.



-Olof
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