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| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /sound/soc/codecs/rl6347a.c | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rl6347a.c')
| -rw-r--r-- | sound/soc/codecs/rl6347a.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/sound/soc/codecs/rl6347a.c b/sound/soc/codecs/rl6347a.c new file mode 100644 index 000000000..fa8ac3454 --- /dev/null +++ b/sound/soc/codecs/rl6347a.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * rl6347a.c - RL6347A class device shared support + * + * Copyright 2015 Realtek Semiconductor Corp. + * + * Author: Oder Chiou <oder_chiou@realtek.com> + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/regmap.h> + +#include "rl6347a.h" + +int rl6347a_hw_write(void *context, unsigned int reg, unsigned int value) +{ + struct i2c_client *client = context; + struct rl6347a_priv *rl6347a = i2c_get_clientdata(client); + u8 data[4]; + int ret, i; + + /* handle index registers */ + if (reg <= 0xff) { + rl6347a_hw_write(client, RL6347A_COEF_INDEX, reg); + for (i = 0; i < rl6347a->index_cache_size; i++) { + if (reg == rl6347a->index_cache[i].reg) { + rl6347a->index_cache[i].def = value; + break; + } + + } + reg = RL6347A_PROC_COEF; + } + + data[0] = (reg >> 24) & 0xff; + data[1] = (reg >> 16) & 0xff; + /* + * 4 bit VID: reg should be 0 + * 12 bit VID: value should be 0 + * So we use an OR operator to handle it rather than use if condition. + */ + data[2] = ((reg >> 8) & 0xff) | ((value >> 8) & 0xff); + data[3] = value & 0xff; + + ret = i2c_master_send(client, data, 4); + + if (ret == 4) + return 0; + else + dev_err(&client->dev, "I2C error %d\n", ret); + if (ret < 0) + return ret; + else + return -EIO; +} +EXPORT_SYMBOL_GPL(rl6347a_hw_write); + +int rl6347a_hw_read(void *context, unsigned int reg, unsigned int *value) +{ + struct i2c_client *client = context; + struct i2c_msg xfer[2]; + int ret; + __be32 be_reg, buf = 0x0; + unsigned int index, vid; + + /* handle index registers */ + if (reg <= 0xff) { + rl6347a_hw_write(client, RL6347A_COEF_INDEX, reg); + reg = RL6347A_PROC_COEF; + } + + reg = reg | 0x80000; + vid = (reg >> 8) & 0xfff; + + if (AC_VERB_GET_AMP_GAIN_MUTE == (vid & 0xf00)) { + index = (reg >> 8) & 0xf; + reg = (reg & ~0xf0f) | index; + } + be_reg = cpu_to_be32(reg); + + /* Write register */ + xfer[0].addr = client->addr; + xfer[0].flags = 0; + xfer[0].len = 4; + xfer[0].buf = (u8 *)&be_reg; + + /* Read data */ + xfer[1].addr = client->addr; + xfer[1].flags = I2C_M_RD; + xfer[1].len = 4; + xfer[1].buf = (u8 *)&buf; + + ret = i2c_transfer(client->adapter, xfer, 2); + if (ret < 0) + return ret; + else if (ret != 2) + return -EIO; + + *value = be32_to_cpu(buf); + + return 0; +} +EXPORT_SYMBOL_GPL(rl6347a_hw_read); + +MODULE_DESCRIPTION("RL6347A class device shared support"); +MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>"); +MODULE_LICENSE("GPL v2"); |
