diff options
| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2020-02-19 17:04:37 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-03-09 13:44:37 +0100 |
| commit | 0cecfefd07ec9ff9064e29c9b8b72440b68b1584 (patch) | |
| tree | aab2fa9979c013b51df2b3316440546e458620a7 /drivers | |
| parent | 2a7e678d4750a7bd6f7665647e16642575c11b7c (diff) | |
spi: spidev: fix setting of max speed
spi->max_speed_hz always sets to the previous value.
Fixing the logic allows IOCTL command SPI_IOC_WR_MAX_SPEED_HZ
to store the new requested value to spi->max_speed_hz.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spidev.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 2f7bb823ce1b..23084a496b6e 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -454,11 +454,12 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) spi->max_speed_hz = tmp; retval = spi_setup(spi); - if (retval >= 0) + if (retval) { + spi->max_speed_hz = save; + } else { spidev->speed_hz = tmp; - else dev_dbg(&spi->dev, "%d Hz (max)\n", tmp); - spi->max_speed_hz = save; + } } break; |