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spi: kirkwood: prevent limiting speed to 0

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After commit 1fe929ed497bcc8975be8d37383ebafd22b99dd2
("spi: kirkwood: prevent configuring speed exceeding max controller freq")
the spi frequency could be set to 0 on platform where spi-max-frequency
is not defined (e.g. on armada-388-gp). Prevent limiting speed in
mentioned cases.

Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Tested-by: Kostya Porotchkin <kostap@marvell.com>
Reviewed-by: Marcin Wojtas <marcin@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Grzegorz Jaszczyk 2021-04-30 15:26:31 +02:00 committed by Stefan Roese
parent 562f8d5b36
commit 9c84159ce1
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/kirkwood_spi.c
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@ -115,7 +115,7 @@ static int mvebu_spi_set_speed(struct udevice *bus, uint hz)
u32 data, divider; u32 data, divider;
unsigned int spr, sppr; unsigned int spr, sppr;
if (hz > spi->max_hz) { if (spi->max_hz && (hz > spi->max_hz)) {
debug("%s: limit speed to the max_hz of the bus %d\n", debug("%s: limit speed to the max_hz of the bus %d\n",
__func__, spi->max_hz); __func__, spi->max_hz);
hz = spi->max_hz; hz = spi->max_hz;