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60 lines
1.5 KiB
60 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. |
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#include <linux/regmap.h> |
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#include <linux/i3c/device.h> |
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#include <linux/i3c/master.h> |
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#include <linux/module.h> |
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static int regmap_i3c_write(void *context, const void *data, size_t count) |
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{ |
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struct device *dev = context; |
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struct i3c_device *i3c = dev_to_i3cdev(dev); |
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struct i3c_priv_xfer xfers[] = { |
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{ |
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.rnw = false, |
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.len = count, |
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.data.out = data, |
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}, |
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}; |
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return i3c_device_do_priv_xfers(i3c, xfers, 1); |
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} |
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static int regmap_i3c_read(void *context, |
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const void *reg, size_t reg_size, |
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void *val, size_t val_size) |
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{ |
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struct device *dev = context; |
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struct i3c_device *i3c = dev_to_i3cdev(dev); |
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struct i3c_priv_xfer xfers[2]; |
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xfers[0].rnw = false; |
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xfers[0].len = reg_size; |
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xfers[0].data.out = reg; |
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xfers[1].rnw = true; |
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xfers[1].len = val_size; |
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xfers[1].data.in = val; |
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return i3c_device_do_priv_xfers(i3c, xfers, 2); |
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} |
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static struct regmap_bus regmap_i3c = { |
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.write = regmap_i3c_write, |
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.read = regmap_i3c_read, |
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}; |
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struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, |
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const struct regmap_config *config, |
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struct lock_class_key *lock_key, |
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const char *lock_name) |
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{ |
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return __devm_regmap_init(&i3c->dev, ®map_i3c, &i3c->dev, config, |
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lock_key, lock_name); |
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} |
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EXPORT_SYMBOL_GPL(__devm_regmap_init_i3c); |
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MODULE_AUTHOR("Vitor Soares <[email protected]>"); |
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MODULE_DESCRIPTION("Regmap I3C Module"); |
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MODULE_LICENSE("GPL v2");
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