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(parent: 944c01a) | patch
spi: lpspi: add the error info of transfer speed setting
authorClark Wang <xiaoning.wang@nxp.com>
Wed, 6 Mar 2019 06:30:41 +0000 (06:30 +0000)
committerMark Brown <broonie@kernel.org>
Mon, 18 Mar 2019 12:17:15 +0000 (12:17 +0000)
commit77736a98b859e2c64aebbd0f90b2ce4b17682396
treec92c1201be7e888563df6caec3921988974a52e0tree | snapshot
parent944c01a889d97dc08e1b71f4ed868f4023fd6034commit | diff
spi: lpspi: add the error info of transfer speed setting

Add a error info when set a speed which greater than half of per-clk of
spi module.

The minimum SCK period is 2 cycles(CCR[SCKDIV]). So the maximum transfer
speed is half of spi per-clk.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-fsl-lpspi.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git