At present there is an incorrect call to rkspi_enable_chip(). It should be disabling the chip, not enabling it. Correct this and ensure that the chip is disabled when releasing the bus.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/spi/rk_spi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c index 91538b4..ecda833 100644 --- a/drivers/spi/rk_spi.c +++ b/drivers/spi/rk_spi.c @@ -285,6 +285,11 @@ static int rockchip_spi_claim_bus(struct udevice *dev)
static int rockchip_spi_release_bus(struct udevice *dev) { + struct udevice *bus = dev->parent; + struct rockchip_spi_priv *priv = dev_get_priv(bus); + + rkspi_enable_chip(priv->regs, false); + return 0; }
@@ -313,7 +318,7 @@ static int rockchip_spi_xfer(struct udevice *dev, unsigned int bitlen, while (len > 0) { int todo = min(len, 0xffff);
- rkspi_enable_chip(regs, true); + rkspi_enable_chip(regs, false); writel(todo - 1, ®s->ctrlr1); rkspi_enable_chip(regs, true);