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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 21:54:06 +08:00
linux-next/drivers/spi
Kalle Valo feed9bab7b spi: omap2_mcspi PIO RX fix
Before transmission of the last word in PIO RX_ONLY mode rx+tx mode
is enabled:

	/* prevent last RX_ONLY read from triggering
	 * more word i/o: switch to rx+tx
	 */
	if (c == 0 && tx == NULL)
		mcspi_write_cs_reg(spi,
				OMAP2_MCSPI_CHCONF0, l);

But because c is decremented after the test, c will never be zero and
rx+tx will not be enabled. This breaks RX_ONLY mode PIO transfers.

Fix it by decrementing c in the beginning of the various I/O loops.

Signed-off-by: Kalle Valo <kalle.valo@nokia.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>
2008-01-24 14:06:44 -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: reload RCR before TCR 2007-12-10 19:43:55 -08:00
atmel_spi.h [PATCH] SPI: atmel_spi driver 2007-02-14 08:09:53 -08:00
au1550_spi.c SPI controller drivers: check for unsupported modes 2007-07-17 10:23:04 -07:00
Kconfig Blackfin arch: punt CONFIG_BFIN -- we already have CONFIG_BLACKFIN 2007-11-23 14:28:44 +08:00
Makefile spi_txx9 controller driver 2007-07-17 10:23:05 -07:00
mpc52xx_psc_spi.c Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
omap2_mcspi.c spi: omap2_mcspi PIO RX fix 2008-01-24 14:06:44 -08:00
omap_uwire.c SPI driver runtime footprint shrinkage 2007-10-16 09:43:09 -07:00
pxa2xx_spi.c pxa2xx_spi: fix typo in description 2007-12-10 19:43:54 -08:00
spi_bfin5xx.c spi_bfin5xx: fix typo in description 2007-12-10 19:43:55 -08:00
spi_bitbang.c spi_bitbang: always grab lock with irqs blocked 2008-01-08 16:10:35 -08:00
spi_butterfly.c minor spi_butterfly cleanup 2007-05-08 11:15:15 -07:00
spi_imx.c spi_imx: fix typo in description 2007-12-10 19:43:55 -08:00
spi_lm70llp.c spi doesn't need class_device 2007-10-16 09:43:10 -07:00
spi_mpc83xx.c SPI driver runtime footprint shrinkage 2007-10-16 09:43:09 -07:00
spi_s3c24xx_gpio.c spi: S3C2410: add bus number to SPI GPIO driver 2007-11-29 09:24:52 -08:00
spi_s3c24xx.c SPI driver runtime footprint shrinkage 2007-10-16 09:43:09 -07:00
spi_txx9.c spi: fix error paths on txx9spi_probe 2007-11-14 18:45:39 -08:00
spi.c spi: simplify spi_sync() calling convention 2007-12-05 09:21:18 -08:00
spidev.c fix abuses of ptrdiff_t 2007-10-29 07:41:33 -07:00
tle62x0.c tle62x0 driver stops ignoring read errors 2007-11-14 18:45:42 -08:00
xilinx_spi.c SPI driver hotplug/coldplug fixes 2007-08-31 01:42:22 -07:00