diff options
| author | Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com> | 2020-06-16 12:34:28 +0300 |
|---|---|---|
| committer | Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | 2021-11-05 10:22:10 +0300 |
| commit | 18a551ca475231a1c7fa0c0f97b5f8182b832074 (patch) | |
| tree | d25394b3ee10e25169dc743c70f57925e8eb65ec /include/linux/mfd | |
| parent | 52c64bb0b8e1ce6829fa5b9ba26c5a9efdde4eb7 (diff) | |
| download | linux-18a551ca475231a1c7fa0c0f97b5f8182b832074.tar.xz | |
hwmon: peci: PCS utils
1. Helpers for reading/writing PCS registers added.
2. PECI sensor configuration structure definition and helpers added.
3. New PECI PCS index and parameters definitions added.
Tested:
* on WilsonCity platform
* hwmon/peci modules work as before the change
Signed-off-by: Zbigniew Lukwinski <zbigniew.lukwinski@linux.intel.com>
Diffstat (limited to 'include/linux/mfd')
| -rw-r--r-- | include/linux/mfd/intel-peci-client.h | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/include/linux/mfd/intel-peci-client.h b/include/linux/mfd/intel-peci-client.h index 46a8f006ad0e..c60591348c37 100644 --- a/include/linux/mfd/intel-peci-client.h +++ b/include/linux/mfd/intel-peci-client.h @@ -1,5 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* Copyright (c) 2018-2019 Intel Corporation */ +/* Copyright (c) 2018-2020 Intel Corporation */ #ifndef __LINUX_MFD_INTEL_PECI_CLIENT_H #define __LINUX_MFD_INTEL_PECI_CLIENT_H @@ -116,4 +116,36 @@ peci_client_read_package_config(struct peci_client_manager *priv, return 0; } +/** + * peci_client_write_package_config - write to the Package Configuration Space + * @priv: driver private data structure + * @index: encoding index for the requested service + * @param: parameter to specify the exact data being requested + * @data: data buffer with values to write + * Context: can sleep + * + * Return: zero on success, else a negative error code. + */ +static inline int +peci_client_write_package_config(struct peci_client_manager *priv, + u8 index, u16 param, u8 *data) +{ + struct peci_rd_pkg_cfg_msg msg; + int ret; + + msg.addr = priv->client->addr; + msg.index = index; + msg.param = param; + msg.rx_len = 4u; + memcpy(msg.pkg_config, data, msg.rx_len); + + ret = peci_command(priv->client->adapter, PECI_CMD_WR_PKG_CFG, &msg); + if (!ret) { + if (msg.cc != PECI_DEV_CC_SUCCESS) + ret = -EAGAIN; + } + + return ret; +} + #endif /* __LINUX_MFD_INTEL_PECI_CLIENT_H */ |