mirror-linux/include/linux/spi
Vladimir Oltean 862dd2a946
spi: Don't look at TX buffer for PTP system timestamping
The API for PTP system timestamping (associating a SPI transaction with
the system time at which it was transferred) is flawed: it assumes that
the xfer->tx_buf pointer will always be present.

This is, of course, not always the case.

So introduce a "progress" variable that denotes how many word have been
transferred.

Fix the Freescale DSPI driver, the only user of the API so far, in the
same patch.

Fixes: b42faeee71 ("spi: Add a PTP system timestamp to the transfer structure")
Fixes: d6b71dfaee ("spi: spi-fsl-dspi: Implement the PTP system timestamping for TCFQ mode")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20191227012417.1057-1-olteanv@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-12-27 23:03:43 +00:00
..
ad7877.h
ads7846.h
at73c213.h
at86rf230.h
cc2520.h
corgi_lcd.h
ds1305.h
eeprom.h
flash.h
ifx_modem.h
l4f00242t03.h
libertas_spi.h
lms283gf05.h
max7301.h
mc33880.h
mcp23s08.h
mmc_spi.h
mxs-spi.h
pxa2xx_spi.h
rspi.h
s3c24xx.h
sh_hspi.h
sh_msiof.h
spi-fsl-dspi.h
spi-mem.h
spi.h spi: Don't look at TX buffer for PTP system timestamping 2019-12-27 23:03:43 +00:00
spi_bitbang.h
spi_gpio.h
spi_oc_tiny.h
tdo24m.h
tle62x0.h
xilinx_spi.h