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https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <common.h>
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#include <dm.h>
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#include <cros_ec.h>
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#include <errno.h>
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#include <i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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struct cros_ec_i2c_bus {
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int remote_bus;
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};
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static int cros_ec_i2c_set_bus_speed(struct udevice *dev, unsigned int speed)
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{
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return 0;
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}
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static int cros_ec_i2c_xfer(struct udevice *dev, struct i2c_msg *msg,
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int nmsgs)
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{
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struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev);
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return cros_ec_i2c_tunnel(dev->parent, i2c_bus->remote_bus, msg, nmsgs);
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}
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static int cros_ec_i2c_ofdata_to_platdata(struct udevice *dev)
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{
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struct cros_ec_i2c_bus *i2c_bus = dev_get_priv(dev);
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const void *blob = gd->fdt_blob;
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int node = dev_of_offset(dev);
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i2c_bus->remote_bus = fdtdec_get_uint(blob, node, "google,remote-bus",
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0);
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return 0;
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}
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static const struct dm_i2c_ops cros_ec_i2c_ops = {
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.xfer = cros_ec_i2c_xfer,
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.set_bus_speed = cros_ec_i2c_set_bus_speed,
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};
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static const struct udevice_id cros_ec_i2c_ids[] = {
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{ .compatible = "google,cros-ec-i2c-tunnel" },
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{ }
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};
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U_BOOT_DRIVER(cros_ec_tunnel) = {
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.name = "cros_ec_tunnel",
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.id = UCLASS_I2C,
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.of_match = cros_ec_i2c_ids,
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.ofdata_to_platdata = cros_ec_i2c_ofdata_to_platdata,
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.priv_auto = sizeof(struct cros_ec_i2c_bus),
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.ops = &cros_ec_i2c_ops,
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};
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