WSL2-Linux-Kernel/drivers/spi
Michael Buesch bfb9bcdbda spi-gpio: allow operation without CS signal
Change spi-gpio so that it is possible to drive SPI communications over
GPIO without the need for a chipselect signal.

This is useful in very small setups where there's only one slave device
on the bus.

This patch does not affect existing setups.

I use this for a tiny communication channel between an embedded device and
a microcontroller.  There are not enough GPIOs available for chipselect
and it's not needed anyway in this case.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:04:51 -07:00
..
Kconfig
Makefile
atmel_spi.c
atmel_spi.h
au1550_spi.c
mpc52xx_psc_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-gpio: allow operation without CS signal 2009-04-02 19:04:51 -07:00
spi_imx.c
spi_lm70llp.c
spi_mpc83xx.c spi_mpc83xx: add OF platform driver bindings 2009-04-01 08:59:22 -07:00
spi_s3c24xx.c
spi_s3c24xx_gpio.c
spi_sh_sci.c
spi_txx9.c
spidev.c
tle62x0.c
xilinx_spi.c