1. 9cdd273 spi: docs: convert to ReST and add it to the kABI bookset by Mauro Carvalho Chehab · 5 years ago[Renamed (71%) from Documentation/spi/butterfly]
  2. 9c1da3c [PATCH] SPI: spi_butterfly, restore lost deltas by David Brownell · 19 years ago
  3. 2e10c84 [PATCH] SPI: add spi_butterfly driver by David Brownell · 19 years ago