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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Some small helpers for older Cirrus Logic parts.
*
* Copyright (C) 2021 Cirrus Logic, Inc. and
* Cirrus Logic International Semiconductor Ltd.
*/
static inline int cirrus_read_device_id(struct regmap *regmap, unsigned int reg)
{
u8 devid[3];
int ret;
ret = regmap_bulk_read(regmap, reg, devid, ARRAY_SIZE(devid));
if (ret < 0)
return ret;
return ((devid[0] & 0xFF) << 12) |
((devid[1] & 0xFF) << 4) |
((devid[2] & 0xF0) >> 4);
}
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