568d0697f4
Support two new half-duplex SPI implementation restrictions, for links that talk to TX-only or RX-only devices. (Existing half-duplex flavors support both transfer directions, just not at the same time.) Move spi_async() into the spi.c core, and stop inlining it. Then make that function perform error checks and reject messages that demand more than the underlying controller can support. Based on a patch from Marek Szyprowski which did this only for the bitbanged GPIO driver. Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| amba-pl022.c | ||
| atmel_spi.c | ||
| atmel_spi.h | ||
| au1550_spi.c | ||
| mpc52xx_psc_spi.c | ||
| mxc_spi.c | ||
| omap2_mcspi.c | ||
| omap_uwire.c | ||
| orion_spi.c | ||
| pxa2xx_spi.c | ||
| spi.c | ||
| spi_bfin5xx.c | ||
| spi_bitbang.c | ||
| spi_butterfly.c | ||
| spi_gpio.c | ||
| spi_lm70llp.c | ||
| spi_mpc8xxx.c | ||
| spi_ppc4xx.c | ||
| spi_s3c24xx.c | ||
| spi_s3c24xx_gpio.c | ||
| spi_sh_sci.c | ||
| spi_stmp.c | ||
| spi_txx9.c | ||
| spidev.c | ||
| tle62x0.c | ||
| xilinx_spi.c | ||