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
..
Kconfig SPI Kconfig simplifications 2008-07-24 10:47:30 -07:00
Makefile spi: SuperH SPI using SCI 2008-02-06 10:41:11 -08:00
at25.c spi: at25 driver is for EEPROM not FLASH 2007-12-05 09:21:18 -08:00
atmel_spi.c atmel_spi: clean up baud rate divisor calculation 2008-04-30 08:29:31 -07:00
atmel_spi.h
au1550_spi.c spi: au1550_spi: improve pio transfer mode 2008-07-24 10:47:30 -07:00
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 spi: fix platform driver hotplug/coldplug 2008-04-11 08:06:43 -07:00
omap_uwire.c spi: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:31 -07:00
pxa2xx_spi.c spi: pxa2xx_spi clock resume bugfix 2008-05-13 08:02:23 -07:00
spi.c spi: make spi_board_info.modalias a char array 2008-07-24 10:47:30 -07:00
spi_bfin5xx.c spi_bfin5xx: use PIO for full duplex, not DMA 2008-05-01 08:04:01 -07:00
spi_bitbang.c spi: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:31 -07:00
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.c spi_s3c24xx signedness fix 2008-05-01 08:04:01 -07:00
spi_s3c24xx_gpio.c spi: fix platform driver hotplug/coldplug 2008-04-11 08:06:43 -07:00
spi_sh_sci.c spi: fix platform driver hotplug/coldplug 2008-04-11 08:06:43 -07:00
spi_txx9.c spi: fix platform driver hotplug/coldplug 2008-04-11 08:06:43 -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