On Fri, 03 Aug 2012 01:12:10 -0400 Chris Ball <[email protected]> wrote:
> Hi,
>
> On Fri, Aug 03 2012, werner wrote:
> > CC drivers/power/twl4030_charger.o
> > drivers/power/twl4030_charger.c:248:12: error: invalid suffix "b1100"
> > on integer constant
>
> drivers/power/twl4030_charger.c:
> #define TWL4030_BBSEL_3V0 0b0100
> #define TWL4030_BBSEL_3V1 0b1000
> #define TWL4030_BBSEL_3V2 0b1100
>
> Werner, your gcc version is too old to support the 0b-prefixed binary
> constant syntax. It was introduced in gcc-4.3. The kernel compiles
> fine here, on gcc-4.7.
>
> Neil Brown added this use of the 0b prefix in 210d4bc8a3128e3e61ac3b
> ("twl4030_charger: Add backup-battery charging"). Neil, I don't think
> we can use this syntax yet -- Documentation/Changes says that we still
> support from gcc-3.2 onwards.
I didn't realise that 0b... wasn't universal.
I'll submit a patch.
Thanks,
NeilBrown
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