Re: [PATCH v2 3/3] drivers: cleanup Kconfig stuff

From: Felipe Balbi
Date: Thu Oct 21 2010 - 06:24:50 EST


hi,

On Thu, Oct 21, 2010 at 04:04:27AM -0500, Felipe Contreras wrote:
wouldn't a user expect USB to be enabled if the board _has_ a USB
connector ?

Not if it's not going to be used.

and how would you know before hand if it's going to be used or not ?

1) Do you think all the OMAP3 boards should add that?

why not ?

You prefer a patch that adds one line per board rather than a patch
that adds one line in total... That is exactly the opposite of Linus's
complaint regarding big ARM changesets.

The thing is that what you are proposing will not scale when we have too
many boards with different transceivers. Then we will end up with things
like:

config USB_ARCH_HAS_OHCI
boolean
# ARM:
default y if SA1111
default y if ARCH_OMAP
default y if ARCH_LH7A404
default y if ARCH_S3C2410
default y if PXA27x
default y if PXA3xx
default y if ARCH_EP93XX
default y if ARCH_AT91
default y if ARCH_PNX4008 && I2C
default y if MFD_TC6393XB
default y if ARCH_W90X900
default y if ARCH_DAVINCI_DA8XX
# PPC:
default y if STB03xxx
default y if PPC_MPC52xx
# MIPS:
default y if MIPS_ALCHEMY
default y if MACH_JZ4740
# SH:
default y if CPU_SUBTYPE_SH7720
default y if CPU_SUBTYPE_SH7721
default y if CPU_SUBTYPE_SH7763
default y if CPU_SUBTYPE_SH7786
# more:
default PCI

which to me would be much better that e.g. SA1111 does a select
USB_ARCH_HAS_OHCI like it's done for HAVE_CLK

--
balbi
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