linux/drivers/spi
Jan Nikitenko bbe48ecc7f spi: au1550_spi: improve pio transfer mode
Improve PIO transfer mode of au1550 spi controller by continuing of spi
transfer, instead of aborting transfer when transmit underflow interrupt
occurrs.

Verified by oscilloscope that the spi clock pauses on trasmit underflow,
so transfer continuation is perfectly valid even though au1550 datasheet
says that on tx underflow zeroes will be transfered.

Also make some error messages more specific.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.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>
2008-07-24 10:47:30 -07:00
..
at25.c
atmel_spi.c
atmel_spi.h
au1550_spi.c spi: au1550_spi: improve pio transfer mode 2008-07-24 10:47:30 -07:00
Kconfig SPI Kconfig simplifications 2008-07-24 10:47:30 -07:00
Makefile
mpc52xx_psc_spi.c powerpc/mpc52xx_psc_spi: use linux/of_platform.h instead of asm 2008-07-12 12:10:53 -06:00
omap2_mcspi.c
omap_uwire.c
pxa2xx_spi.c
spi_bfin5xx.c
spi_bitbang.c
spi_butterfly.c
spi_imx.c Merge branch 'imx' into devel 2008-07-10 16:41:50 +01:00
spi_lm70llp.c
spi_mpc83xx.c spi: spi_mpc83xx clockrate fixes 2008-07-24 10:47:30 -07:00
spi_s3c24xx_gpio.c
spi_s3c24xx.c
spi_sh_sci.c
spi_txx9.c
spi.c spi: make spi_board_info.modalias a char array 2008-07-24 10:47:30 -07:00
spidev.c spidev: BKL removal 2008-07-24 10:47:30 -07:00
tle62x0.c
xilinx_spi.c xilinx_spi: test below 0 on unsigned irq in xilinx_spi_probe() 2008-07-24 10:47:30 -07:00