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rockchip: spi: Correct chip-enable code

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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>
This commit is contained in:
Simon Glass 2016-01-21 19:44:11 -07:00
parent 183a3a0f67
commit e15af8e2cd
1 changed files with 6 additions and 1 deletions
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7
drivers/spi/rk_spi.c
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@ -286,6 +286,11 @@ 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;
}
@ -314,7 +319,7 @@ 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, &regs->ctrlr1);
rkspi_enable_chip(regs, true);