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/openbmc/linux/Documentation/devicetree/bindings/hwmon/
H A Dmoortec,mr75203.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rahul Tanwar <rtanwar@maxlinear.com>
19 *) Temperature Sensor (TS) - used to monitor core temperature (e.g. mr74137).
20 *) Voltage Monitor (VM) - used to monitor voltage levels (e.g. mr74138).
21 *) Process Detector (PD) - used to assess silicon speed (e.g. mr74139).
22 *) Delay Chain - ring oscillator connected to the PD, used to measure IO
23 based transistors (e.g. mr76008 ring oscillator at 1.1V, mr76007 ring
25 *) Pre Scaler - provides divide-by-X scaling of input voltage, which can then
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/openbmc/linux/drivers/hwmon/
H A Dmr75203.c1 // SPDX-License-Identifier: GPL-2.0
7 * analog IP to enable multiple embedded temperature sensor(TS),
63 /* TS & PD Individual Macro Register */
111 #define PVT_TEMP_MIN_mC -40000
117 #define PVT_SERIES5_J_CONST -100
133 * struct voltage_device - VM single input parameters.
139 * The structure provides mapping between channel-number (0..N-1) to VM-index
140 * (0..num_vm-1) and channel-index (0..ch_num-1) where N = num_vm * ch_num.
150 * struct voltage_channels - VM channel count.
163 u32 g; member
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/openbmc/linux/drivers/iio/light/
H A Drohm-bu27034.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * https://fscdn.rohm.com/en/products/databook/datasheet/ic/sensor/light/bu27034nuc-e.pdf
21 #include <linux/iio/iio-gts-helper.h>
55 * inevitable even if the sensor clock would be perfectly phase-locked to CPU
56 * clock - which we can't say is the case.
59 * risk of losing a sample because things can in a rainy-day scenario be
72 * Downside is that the time-stamps would be very inaccurate as the wake-up
74 * result 'jumps' in the time-stamps when the delay drifted so that wake-up was
75 * performed during the consecutive wake-ups (Or, when sensor and CPU clocks
76 * were very different and scheduling the wake-ups was very close to given
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