David Brownell 70d6027ff2 spi: add spi_master flag word ... Add a new spi_master.flags word listing constraints relevant to that controller. Define the first constraint bit: a half duplex restriction. Include that constraint in the OMAP1 MicroWire controller driver. Have the mmc_spi host be the first customer of this flag. Its coding relies heavily on full duplex transfers, so it must fail when the underlying controller driver won't perform them. (The spi_write_then_read routine could use it too: use the temporarily-withdrawn full-duplex speedup unless this flag is set, in which case the existing code applies. Similarly, any spi_master implementing only SPI_3WIRE should set the flag.) Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-06-30 18:56:00 -07:00
..
card	mmc_block: do not DMA to stack	2009-06-13 22:43:01 +02:00
core	MMC core: limit minimum initialization frequency to 400kHz	2009-06-13 22:42:57 +02:00
host	spi: add spi_master flag word	2009-06-30 18:56:00 -07:00
Kconfig	mmc: explicitly mention SDIO support in Kconfig	2008-10-12 11:04:36 +02:00
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