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| author | Prathima <Prathima.Lk@amd.com> | 2026-07-10 16:46:37 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-07-17 15:50:48 +0200 |
| commit | d4f8babf8e8ffb8cd75d12d1003d2a2c17a53420 (patch) | |
| tree | e2eb0f0becd6c303a8b9d5bccdaa0d2a7165939f /drivers/misc | |
| parent | 54a7848c24a5e786d25b209f61d3c86528bdce62 (diff) | |
| download | linux-d4f8babf8e8ffb8cd75d12d1003d2a2c17a53420.tar.gz linux-d4f8babf8e8ffb8cd75d12d1003d2a2c17a53420.zip | |
hwmon/misc: amd-sbi: Move sbtsi register transfer to core abstraction
Move the I2C read/write byte operations from the sbtsi hwmon driver into
a common sbtsi_xfer() function in tsi-core.c.
This decouples the hwmon sensor driver from the underlying bus transport,
preparing for I3C support in a subsequent patch.
This patch does not introduce any functional changes. The updates are
limited to code organization/cleanup and should not affect the runtime
behavior of the driver
Reviewed-by: Akshay Gupta <Akshay.Gupta@amd.com>
Signed-off-by: Prathima <Prathima.Lk@amd.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Link: https://patch.msgid.link/20260710111642.850022-4-Akshay.Gupta@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/amd-sbi/Makefile | 2 | ||||
| -rw-r--r-- | drivers/misc/amd-sbi/tsi-core.c | 30 |
2 files changed, 31 insertions, 1 deletions
diff --git a/drivers/misc/amd-sbi/Makefile b/drivers/misc/amd-sbi/Makefile index 28f95b9e204f..ce9321f5c601 100644 --- a/drivers/misc/amd-sbi/Makefile +++ b/drivers/misc/amd-sbi/Makefile @@ -3,5 +3,5 @@ sbrmi-i2c-objs += rmi-i2c.o rmi-core.o sbrmi-i2c-$(CONFIG_AMD_SBRMI_HWMON) += rmi-hwmon.o obj-$(CONFIG_AMD_SBRMI_I2C) += sbrmi-i2c.o # SBTSI Configuration -sbtsi-objs += tsi.o +sbtsi-objs += tsi.o tsi-core.o obj-$(CONFIG_AMD_SBTSI) += sbtsi.o diff --git a/drivers/misc/amd-sbi/tsi-core.c b/drivers/misc/amd-sbi/tsi-core.c new file mode 100644 index 000000000000..6ef1831515bb --- /dev/null +++ b/drivers/misc/amd-sbi/tsi-core.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * tsi-core.c - file defining SB-TSI protocols compliant + * AMD SoC device. + * + * Copyright (C) 2026 Advanced Micro Devices, Inc. + */ + +#include <linux/module.h> +#include <linux/misc/tsi.h> + +/* I2C transfer function */ +static int sbtsi_i2c_xfer(struct sbtsi_data *data, u8 reg, u8 *val, bool is_read) +{ + if (is_read) { + int ret = i2c_smbus_read_byte_data(data->client, reg); + + if (ret < 0) + return ret; + *val = ret; + return 0; + } + return i2c_smbus_write_byte_data(data->client, reg, *val); +} + +int sbtsi_xfer(struct sbtsi_data *data, u8 reg, u8 *val, bool is_read) +{ + return sbtsi_i2c_xfer(data, reg, val, is_read); +} +EXPORT_SYMBOL_GPL(sbtsi_xfer); |