spi_bfin: use more useful GPIO labels
Use the SPI driver's name when requesting gpio lines. When there are gpio conflicts, this helps to narrow down the problems; "bfin-spi" is not informative. Signed-off-by: NBryan Wu <bryan.wu@analog.com> Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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