diff options
| author | Rob Barnes <robbarnes@google.com> | 2021-08-06 11:50:05 -0600 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-08-16 22:45:33 +0000 |
| commit | 87490a70aaece31f9a315a44c3de4904a76ea90a (patch) | |
| tree | efe92eeaf6db77a42c3916c056c09c220fe857c9 /include | |
| parent | 7e84bc29b291e4d7456783754cdf84dbd056ef34 (diff) | |
| download | chrome-ec-87490a70aaece31f9a315a44c3de4904a76ea90a.tar.gz | |
driver/amd_stt: Add AMD STT driver
Add a driver for writing Skin Temperature Tracking (STT) sensor
readings to the SB-RMI interface. STT readings are used to maximize
the SOc performance while keeping the skin temperature within
specification.
BUG=b:176994331
TEST=Build and run on guybrush
BRANCH=None
Change-Id: If655545158e7dc05946bc67686b1b0b40a40a713
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3078050
Reviewed-by: Bhanu Prakash Maiya <bhanumaiya@google.com>
Reviewed-by: Raul E Rangel <rrangel@chromium.org>
Commit-Queue: Raul E Rangel <rrangel@chromium.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/config.h | 8 | ||||
| -rw-r--r-- | include/driver/amd_stt.h | 27 |
2 files changed, 35 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index a6bd31276d..4e83e96f9c 100644 --- a/include/config.h +++ b/include/config.h @@ -3876,6 +3876,9 @@ */ #undef CONFIG_TEMP_SENSOR_POWER_GPIO +/* AMD STT (Skin Temperature Tracking) */ +#undef CONFIG_AMD_STT + /* Compile common code for throttling the CPU based on the temp sensors */ #undef CONFIG_THROTTLE_AP @@ -6434,4 +6437,9 @@ * !CONFIG_ACCELGYRO_BMI_I2C */ +/* AMD STT requires AMD SB-RMI to be enabled */ +#if defined(CONFIG_AMD_STT) && !defined(CONFIG_AMD_SB_RMI) +#define CONFIG_AMD_SB_RMI +#endif + #endif /* __CROS_EC_CONFIG_H */ diff --git a/include/driver/amd_stt.h b/include/driver/amd_stt.h new file mode 100644 index 0000000000..3d382a6c0a --- /dev/null +++ b/include/driver/amd_stt.h @@ -0,0 +1,27 @@ +/* Copyright 2021 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* AMD STT (Skin Temperature Tracking) Manager */ + +#ifndef __CROS_EC_AMD_STT_H +#define __CROS_EC_AMD_STT_H + +#define AMD_STT_WRITE_SENSOR_VALUE_CMD 0x3A + +enum amd_stt_pcb_sensor { + AMD_STT_PCB_SENSOR_APU = 0x0, + AMD_STT_PCB_SENSOR_REMOTE = 0x1, + AMD_STT_PCB_SENSOR_GPU = 0x2 +}; + +/** + * Boards must implement these callbacks for SOC and Ambient temperature. + * Temperature must be returned in Milli Kelvin. + * TODO(b/192391025): Replace with direct calls to temp_sensor_read_mk + */ +int board_get_soc_temp_mk(int *temp_mk); +int board_get_ambient_temp_mk(int *temp_mk); + +#endif /* __CROS_EC_AMD_STT_H */ |