From 1bde67b1f492cbb0177241a56af59f706d45fccf Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Mon, 20 Apr 2015 12:37:13 -0600
Subject: [PATCH] dm: i2c: sandbox: Add debugging to the speed limit
Print a debug() message with the I2C speed is exceeded.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
---
drivers/i2c/sandbox_i2c.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/sandbox_i2c.c b/drivers/i2c/sandbox_i2c.c
index d6adc0f721b..621caecf044 100644
--- a/drivers/i2c/sandbox_i2c.c
+++ b/drivers/i2c/sandbox_i2c.c
@@ -73,8 +73,10 @@ static int sandbox_i2c_xfer(struct udevice *bus, struct i2c_msg *msg,
* 400KHz for reads
*/
is_read = nmsgs > 1;
- if (i2c->speed_hz > (is_read ? 400000 : 100000))
+ if (i2c->speed_hz > (is_read ? 400000 : 100000)) {
+ debug("%s: Max speed exceeded\n", __func__);
return -EINVAL;
+ }
return ops->xfer(emul, msg, nmsgs);
}
--
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