Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
// 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/array_size.h>
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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_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_xfers(i3c, xfers, ARRAY_SIZE(xfers), I3C_SDR);
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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_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_xfers(i3c, xfers, ARRAY_SIZE(xfers), I3C_SDR);
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}
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static const 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 <vitor.soares@synopsys.com>");
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MODULE_DESCRIPTION("regmap I3C Module");
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MODULE_LICENSE("GPL v2");
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