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// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Amlogic Meson Reset Auxiliary driver
*
* Copyright (c) 2024 BayLibre, SAS.
* Author: Jerome Brunet <jbrunet@baylibre.com>
*/
#include <linux/err.h>
#include <linux/module.h>
#include <linux/auxiliary_bus.h>
#include <linux/regmap.h>
#include <linux/reset-controller.h>
#include "reset-meson.h"
static const struct meson_reset_param meson_a1_audio_param = {
.reset_ops = &meson_reset_toggle_ops,
.reset_num = 32,
.level_offset = 0x28,
};
static const struct meson_reset_param meson_a1_audio_vad_param = {
.reset_ops = &meson_reset_toggle_ops,
.reset_num = 6,
.level_offset = 0x8,
};
static const struct meson_reset_param meson_g12a_audio_param = {
.reset_ops = &meson_reset_toggle_ops,
.reset_num = 26,
.level_offset = 0x24,
};
static const struct meson_reset_param meson_sm1_audio_param = {
.reset_ops = &meson_reset_toggle_ops,
.reset_num = 39,
.level_offset = 0x28,
};
static const struct auxiliary_device_id meson_reset_aux_ids[] = {
{
.name = "a1-audio-clkc.rst-a1",
.driver_data = (kernel_ulong_t)&meson_a1_audio_param,
}, {
.name = "a1-audio-clkc.rst-a1-vad",
.driver_data = (kernel_ulong_t)&meson_a1_audio_vad_param,
}, {
.name = "axg-audio-clkc.rst-g12a",
.driver_data = (kernel_ulong_t)&meson_g12a_audio_param,
}, {
.name = "axg-audio-clkc.rst-sm1",
.driver_data = (kernel_ulong_t)&meson_sm1_audio_param,
}, {}
};
MODULE_DEVICE_TABLE(auxiliary, meson_reset_aux_ids);
static int meson_reset_aux_probe(struct auxiliary_device *adev,
const struct auxiliary_device_id *id)
{
const struct meson_reset_param *param =
(const struct meson_reset_param *)(id->driver_data);
struct regmap *map;
map = dev_get_regmap(adev->dev.parent, NULL);
if (!map)
return -EINVAL;
return meson_reset_controller_register(&adev->dev, map, param);
}
static struct auxiliary_driver meson_reset_aux_driver = {
.probe = meson_reset_aux_probe,
.id_table = meson_reset_aux_ids,
};
module_auxiliary_driver(meson_reset_aux_driver);
MODULE_DESCRIPTION("Amlogic Meson Reset Auxiliary driver");
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS("MESON_RESET");
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