audio-lnx: Rename folders to new flat structure.
Kernel audio drivers can be categorised into below folders. asoc - ALSA based drivers, asoc/codecs - codec drivers, ipc - APR IPC communication drivers, dsp - DSP low level drivers/Audio ION/ADSP Loader, dsp/codecs - Native encoders and decoders, soc - SoC based drivers(pinctrl/regmap/soundwire) Restructure drivers to above folder format. Include directories also follow above format. Change-Id: I8fa0857baaacd47db126fb5c1f1f5ed7e886dbc0 Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
This commit is contained in:
Laxminath Kasam
committed by
Martin Fick
Martin Fick
parent
84f7f73144
commit
605b42f92c
216
soc/regmap-swr.c
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216
soc/regmap-swr.c
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/*
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* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/mutex.h>
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#include <linux/regmap.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <soc/soundwire.h>
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#include <soc/internal.h>
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static int regmap_swr_gather_write(void *context,
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const void *reg, size_t reg_size,
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const void *val, size_t val_len)
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{
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struct device *dev = context;
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struct swr_device *swr = to_swr_device(dev);
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struct regmap *map = dev_get_regmap(dev, NULL);
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size_t addr_bytes;
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size_t val_bytes;
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int i, ret = 0;
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u16 reg_addr = 0;
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u8 *value;
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if (map == NULL) {
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dev_err(dev, "%s: regmap is NULL\n", __func__);
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return -EINVAL;
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}
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addr_bytes = map->format.reg_bytes;
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if (swr == NULL) {
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dev_err(dev, "%s: swr device is NULL\n", __func__);
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return -EINVAL;
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}
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if (reg_size != addr_bytes) {
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dev_err(dev, "%s: reg size %zd bytes not supported\n",
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__func__, reg_size);
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return -EINVAL;
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}
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reg_addr = *(u16 *)reg;
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val_bytes = map->format.val_bytes;
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/* val_len = val_bytes * val_count */
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for (i = 0; i < (val_len / val_bytes); i++) {
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value = (u8 *)val + (val_bytes * i);
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ret = swr_write(swr, swr->dev_num, (reg_addr + i), value);
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if (ret < 0) {
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dev_err(dev, "%s: write reg 0x%x failed, err %d\n",
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__func__, (reg_addr + i), ret);
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break;
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}
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}
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return ret;
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}
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static int regmap_swr_raw_multi_reg_write(void *context, const void *data,
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size_t count)
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{
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struct device *dev = context;
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struct swr_device *swr = to_swr_device(dev);
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struct regmap *map = dev_get_regmap(dev, NULL);
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size_t addr_bytes;
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size_t val_bytes;
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size_t pad_bytes;
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size_t num_regs;
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int i = 0;
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int ret = 0;
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u16 *reg;
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u8 *val;
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u8 *buf;
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if (swr == NULL) {
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dev_err(dev, "%s: swr device is NULL\n", __func__);
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return -EINVAL;
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}
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if (map == NULL) {
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dev_err(dev, "%s: regmap is NULL\n", __func__);
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return -EINVAL;
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}
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addr_bytes = map->format.reg_bytes;
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val_bytes = map->format.val_bytes;
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pad_bytes = map->format.pad_bytes;
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if (addr_bytes + val_bytes + pad_bytes == 0) {
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dev_err(dev, "%s: sum of addr, value and pad is 0\n", __func__);
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return -EINVAL;
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}
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num_regs = count / (addr_bytes + val_bytes + pad_bytes);
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reg = kcalloc(num_regs, sizeof(u16), GFP_KERNEL);
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if (!reg)
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return -ENOMEM;
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val = kcalloc(num_regs, sizeof(u8), GFP_KERNEL);
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if (!val) {
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ret = -ENOMEM;
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goto mem_fail;
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}
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buf = (u8 *)data;
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for (i = 0; i < num_regs; i++) {
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reg[i] = *(u16 *)buf;
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buf += (map->format.reg_bytes + map->format.pad_bytes);
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val[i] = *buf;
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buf += map->format.val_bytes;
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}
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ret = swr_bulk_write(swr, swr->dev_num, reg, val, num_regs);
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if (ret)
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dev_err(dev, "%s: multi reg write failed\n", __func__);
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kfree(val);
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mem_fail:
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kfree(reg);
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return ret;
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}
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static int regmap_swr_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 regmap *map = dev_get_regmap(dev, NULL);
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size_t addr_bytes;
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size_t val_bytes;
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size_t pad_bytes;
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if (map == NULL) {
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dev_err(dev, "%s: regmap is NULL\n", __func__);
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return -EINVAL;
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}
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addr_bytes = map->format.reg_bytes;
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val_bytes = map->format.val_bytes;
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pad_bytes = map->format.pad_bytes;
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WARN_ON(count < addr_bytes);
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if (count > (addr_bytes + val_bytes + pad_bytes))
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return regmap_swr_raw_multi_reg_write(context, data, count);
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else
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return regmap_swr_gather_write(context, data, addr_bytes,
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(data + addr_bytes),
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(count - addr_bytes));
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}
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static int regmap_swr_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 swr_device *swr = to_swr_device(dev);
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struct regmap *map = dev_get_regmap(dev, NULL);
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size_t addr_bytes;
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int ret = 0;
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u16 reg_addr = 0;
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if (map == NULL) {
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dev_err(dev, "%s: regmap is NULL\n", __func__);
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return -EINVAL;
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}
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addr_bytes = map->format.reg_bytes;
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if (swr == NULL) {
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dev_err(dev, "%s: swr is NULL\n", __func__);
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return -EINVAL;
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}
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if (reg_size != addr_bytes) {
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dev_err(dev, "%s: register size %zd bytes not supported\n",
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__func__, reg_size);
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return -EINVAL;
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}
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reg_addr = *(u16 *)reg;
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ret = swr_read(swr, swr->dev_num, reg_addr, val, val_size);
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if (ret < 0)
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dev_err(dev, "%s: codec reg 0x%x read failed %d\n",
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__func__, reg_addr, ret);
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return ret;
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}
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static struct regmap_bus regmap_swr = {
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.write = regmap_swr_write,
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.gather_write = regmap_swr_gather_write,
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.read = regmap_swr_read,
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.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
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.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
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};
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struct regmap *__regmap_init_swr(struct swr_device *swr,
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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 __regmap_init(&swr->dev, ®map_swr, &swr->dev, config,
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lock_key, lock_name);
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}
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EXPORT_SYMBOL(__regmap_init_swr);
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struct regmap *__devm_regmap_init_swr(struct swr_device *swr,
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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(&swr->dev, ®map_swr, &swr->dev, config,
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lock_key, lock_name);
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}
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EXPORT_SYMBOL(__devm_regmap_init_swr);
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MODULE_LICENSE("GPL v2");
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