i2c: slave: print warning if slave flag not set
Address collisions will be rare, but we should let the user know that
slaves have their own address space nonetheless.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 039817e..a678028 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -3017,6 +3017,10 @@
return -EINVAL;
}
+ if (!(client->flags & I2C_CLIENT_SLAVE))
+ dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",
+ __func__);
+
if (!(client->flags & I2C_CLIENT_TEN)) {
/* Enforce stricter address checking */
ret = i2c_check_7bit_addr_validity_strict(client->addr);