From e15af8e2cdb169b59945145a118a344b52d0ffa2 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Thu, 21 Jan 2016 19:44:11 -0700
Subject: [PATCH] rockchip: spi: Correct chip-enable code
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 35b528fa59..412fa8ba76 100644
--- a/drivers/spi/rk_spi.c
+++ b/drivers/spi/rk_spi.c
@@ -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, ®s->ctrlr1);
rkspi_enable_chip(regs, true);
--
2.39.5