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path: root/drivers/i2c/busses/i2c-cros-ec-tunnel.c
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Diffstat (limited to 'drivers/i2c/busses/i2c-cros-ec-tunnel.c')
-rw-r--r--drivers/i2c/busses/i2c-cros-ec-tunnel.c21
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
index 790ea3fda693..208ce4f9e782 100644
--- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
+++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
@@ -107,7 +107,7 @@ static int ec_i2c_construct_message(u8 *buf, const struct i2c_msg i2c_msgs[],
/**
* ec_i2c_count_response - Count bytes needed for ec_i2c_parse_response
*
- * @i2c_msgs: The i2c messages to to fill up.
+ * @i2c_msgs: The i2c messages to fill up.
* @num: The number of i2c messages expected.
*
* Returns the number of response bytes expeced.
@@ -131,7 +131,7 @@ static int ec_i2c_count_response(struct i2c_msg i2c_msgs[], int num)
* We'll take the EC's response and copy it back into msgs.
*
* @buf: The buffer to parse.
- * @i2c_msgs: The i2c messages to to fill up.
+ * @i2c_msgs: The i2c messages to fill up.
* @num: The number of i2c messages; will be modified to include the actual
* number received.
*
@@ -235,8 +235,8 @@ static u32 ec_i2c_functionality(struct i2c_adapter *adap)
}
static const struct i2c_algorithm ec_i2c_algorithm = {
- .master_xfer = ec_i2c_xfer,
- .functionality = ec_i2c_functionality,
+ .xfer = ec_i2c_xfer,
+ .functionality = ec_i2c_functionality,
};
static int ec_i2c_probe(struct platform_device *pdev)
@@ -247,6 +247,9 @@ static int ec_i2c_probe(struct platform_device *pdev)
u32 remote_bus;
int err;
+ if (!ec)
+ return dev_err_probe(dev, -EPROBE_DEFER, "couldn't find parent EC device\n");
+
if (!ec->cmd_xfer) {
dev_err(dev, "Missing sendrecv\n");
return -EINVAL;
@@ -267,7 +270,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
bus->dev = dev;
bus->adap.owner = THIS_MODULE;
- strlcpy(bus->adap.name, "cros-ec-i2c-tunnel", sizeof(bus->adap.name));
+ strscpy(bus->adap.name, "cros-ec-i2c-tunnel", sizeof(bus->adap.name));
bus->adap.algo = &ec_i2c_algorithm;
bus->adap.algo_data = bus;
bus->adap.dev.parent = &pdev->dev;
@@ -283,22 +286,20 @@ static int ec_i2c_probe(struct platform_device *pdev)
return err;
}
-static int ec_i2c_remove(struct platform_device *dev)
+static void ec_i2c_remove(struct platform_device *dev)
{
struct ec_i2c_device *bus = platform_get_drvdata(dev);
i2c_del_adapter(&bus->adap);
-
- return 0;
}
-static const struct of_device_id cros_ec_i2c_of_match[] = {
+static const struct of_device_id cros_ec_i2c_of_match[] __maybe_unused = {
{ .compatible = "google,cros-ec-i2c-tunnel" },
{},
};
MODULE_DEVICE_TABLE(of, cros_ec_i2c_of_match);
-static const struct acpi_device_id cros_ec_i2c_tunnel_acpi_id[] = {
+static const struct acpi_device_id cros_ec_i2c_tunnel_acpi_id[] __maybe_unused = {
{ "GOOG0012", 0 },
{ }
};