[PATCH] I2C: i.MX: early: Use internal udelay

[John Watts]

udelay isn't provided in the PBL, so use our own definition.

This avoids boards having to define udelay in their code.

Signed-off-by: John Watts <contact at jookia.org>
---
 drivers/i2c/busses/i2c-imx-early.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-imx-early.c b/drivers/i2c/busses/i2c-imx-early.c
index 6c8bdc7904..fcf279eff8 100644
--- a/drivers/i2c/busses/i2c-imx-early.c
+++ b/drivers/i2c/busses/i2c-imx-early.c
@@ -90,6 +90,13 @@ static int i2c_fsl_acked(struct fsl_i2c *fsl_i2c)
 	return i2c_fsl_poll_status(fsl_i2c, 0, I2SR_RXAK);
 }
 
+static void __udelay(int us)
+{
+	volatile int i;
+
+	for (i = 0; i < us * 1000; i++);
+}
+
 static int i2c_fsl_start(struct fsl_i2c *fsl_i2c)
 {
 	unsigned int temp = 0;
@@ -104,7 +111,7 @@ static int i2c_fsl_start(struct fsl_i2c *fsl_i2c)
 			  fsl_i2c, FSL_I2C_I2CR);
 
 	/* Wait controller to be stable */
-	udelay(100);
+	__udelay(100);
 
 	/* Start I2C transaction */
 	temp = fsl_i2c_read_reg(fsl_i2c, FSL_I2C_I2CR);
-- 
2.39.1