commit 2c9693ce2c9bf1e847265039133a2d9c5574e33a
author Simon Glass <sjg@chromium.org> Thu Jan 21 19:44:11 2016 -0700
committer Simon Glass <sjg@chromium.org> Thu Jan 21 20:42:36 2016 -0700
tree 4baaed94c2b8f932d445b661556b4dd95c0adabf
parent 58a52e878b35a936e7ab9210aac04c9cb016ad88

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

diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c
index 35b528f..412fa8b 100644
--- a/drivers/spi/rk_spi.c
+++ b/drivers/spi/rk_spi.c
@@ -286,6 +286,11 @@
 
 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 @@
 	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);