2 * Copyright (c) 2015 Google, Inc
3 * Written by Simon Glass <sjg@chromium.org>
5 * SPDX-License-Identifier: GPL-2.0+
14 DECLARE_GLOBAL_DATA_PTR;
16 struct cros_ec_i2c_bus {
20 static int cros_ec_i2c_set_bus_speed(struct udevice *dev, unsigned int speed)
25 static int cros_ec_i2c_xfer(struct udevice *dev, struct i2c_msg *msg,
28 struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev);
30 return cros_ec_i2c_tunnel(dev->parent, i2c_bus->remote_bus, msg, nmsgs);
33 static int cros_ec_i2c_ofdata_to_platdata(struct udevice *dev)
35 struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev);
36 const void *blob = gd->fdt_blob;
37 int node = dev_of_offset(dev);
39 i2c_bus->remote_bus = fdtdec_get_uint(blob, node, "google,remote-bus",
45 static const struct dm_i2c_ops cros_ec_i2c_ops = {
46 .xfer = cros_ec_i2c_xfer,
47 .set_bus_speed = cros_ec_i2c_set_bus_speed,
50 static const struct udevice_id cros_ec_i2c_ids[] = {
51 { .compatible = "google,cros-ec-i2c-tunnel" },
55 U_BOOT_DRIVER(cros_ec_tunnel) = {
56 .name = "cros_ec_tunnel",
58 .of_match = cros_ec_i2c_ids,
59 .ofdata_to_platdata = cros_ec_i2c_ofdata_to_platdata,
60 .priv_auto_alloc_size = sizeof(struct cros_ec_i2c_bus),
61 .ops = &cros_ec_i2c_ops,