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>
diff --git a/drivers/i2c/sandbox_i2c.c b/drivers/i2c/sandbox_i2c.c
index d6adc0f..621caec 100644
--- a/drivers/i2c/sandbox_i2c.c
+++ b/drivers/i2c/sandbox_i2c.c
@@ -73,8 +73,10 @@
* 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);
}