diff options
| author | Simon Glass <sjg@chromium.org> | 2017-05-31 17:57:18 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2017-06-09 13:39:33 -0600 |
| commit | 4a7b9ee15ee0c5aa38bce0e32263fbb11572b475 (patch) | |
| tree | ce1a8c19672e8ed2accb1e88e7c3c5370cb672f3 /drivers/spi | |
| parent | c415dda8df1134ba60ff031110649ca4e2735174 (diff) | |
tegra: spi: Wait a little after setting the clocks
For devices that need a delay between SPI transactions we seem to need an
additional delay before the first one if the CPU is running at full speed.
Add this, under control of the existing setting. At present it will only
be enabled with the Chrome OS EC.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/tegra114_spi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/spi/tegra114_spi.c b/drivers/spi/tegra114_spi.c index 802117eb49..91659349a3 100644 --- a/drivers/spi/tegra114_spi.c +++ b/drivers/spi/tegra114_spi.c @@ -152,6 +152,7 @@ static int tegra114_spi_probe(struct udevice *bus) bus->name, priv->freq, rate); } } + udelay(plat->deactivate_delay_us); /* Clear stale status here */ setbits_le32(®s->fifo_status, |