Messages in this thread | | | Date | Tue, 17 Jan 2012 14:45:31 +0530 | From | Viresh Kumar <> | Subject | Re: [PATCH 8/8] dmaengine/dw_dmac: Add support for DMA_SLAVE_CONFIG |
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On 1/17/2012 2:19 PM, Linus Walleij wrote: > Are you looking for ffs() from <linus/bitops.h>? > > find-first-set (the include boils down to include/asm-generic/bitops/ffs.h > if you want to check the implementation).
Thanks, but it might not solve the issue. :( Actually this will retain the first Least Significant Bit (which is 1) and will mark all other zero. So it will give output 0b10 for 0b110
>>> >> + * Fix sconfig's burst size according to dw_dmac. We need to convert >>> >> + * them as: 1 -> 0, 2 -> 1, 4 -> 2, 8 -> 3, 16 -> 4.
I need above conversion. i.e. finding bit no. of first bit set.
-- viresh
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