Browse Source

spi: kirkwood: prevent limiting speed to 0

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>
Grzegorz Jaszczyk 3 years ago
parent
commit
9c84159ce1
1 changed files with 1 additions and 1 deletions
  1. 1 1
      drivers/spi/kirkwood_spi.c

+ 1 - 1
drivers/spi/kirkwood_spi.c

@@ -115,7 +115,7 @@ static int mvebu_spi_set_speed(struct udevice *bus, uint hz)
 	u32 data, divider;
 	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",
 		      __func__, spi->max_hz);
 		hz = spi->max_hz;