diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-cros-ec-tunnel.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-cros-ec-tunnel.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c index 05e033c98115..875c22ae5400 100644 --- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c +++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c @@ -16,6 +16,8 @@ #include <linux/platform_device.h> #include <linux/slab.h> +#define I2C_MAX_RETRIES 3 + /** * struct ec_i2c_device - Driver data for I2C tunnel * @@ -94,7 +96,7 @@ static int ec_i2c_construct_message(u8 *buf, const struct i2c_msg i2c_msgs[], msg->addr_flags = i2c_msg->addr; if (i2c_msg->flags & I2C_M_TEN) - msg->addr_flags |= EC_I2C_FLAG_10BIT; + return -EINVAL; if (i2c_msg->flags & I2C_M_RD) { msg->addr_flags |= EC_I2C_FLAG_READ; @@ -218,7 +220,9 @@ static int ec_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg i2c_msgs[], } } - ec_i2c_construct_message(request, i2c_msgs, num, bus_num); + result = ec_i2c_construct_message(request, i2c_msgs, num, bus_num); + if (result) + goto exit; msg.version = 0; msg.command = EC_CMD_I2C_PASSTHRU; @@ -227,7 +231,7 @@ static int ec_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg i2c_msgs[], msg.indata = response; msg.insize = response_len; - result = bus->ec->cmd_xfer(bus->ec, &msg); + result = cros_ec_cmd_xfer(bus->ec, &msg); if (result < 0) goto exit; @@ -290,6 +294,7 @@ static int ec_i2c_probe(struct platform_device *pdev) bus->adap.algo_data = bus; bus->adap.dev.parent = &pdev->dev; bus->adap.dev.of_node = np; + bus->adap.retries = I2C_MAX_RETRIES; err = i2c_add_adapter(&bus->adap); if (err) { @@ -310,11 +315,20 @@ static int ec_i2c_remove(struct platform_device *dev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id cros_ec_i2c_of_match[] = { + { .compatible = "google,cros-ec-i2c-tunnel" }, + {}, +}; +MODULE_DEVICE_TABLE(of, cros_ec_i2c_of_match); +#endif + static struct platform_driver ec_i2c_tunnel_driver = { .probe = ec_i2c_probe, .remove = ec_i2c_remove, .driver = { .name = "cros-ec-i2c-tunnel", + .of_match_table = of_match_ptr(cros_ec_i2c_of_match), }, }; |