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dt-bindings: rpmh-regulator: Add support for PBS RPMh resources

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PBS RPMh resources are used to trigger PBS sequences, which
may be used to toggle the enable state of regulators which are
required to be controlled by HW enable option.

Add support for them.

Change-Id: I620793269cf9962f692fad8277a280bb05a98cd6
Signed-off-by: Shilpa Suresh <quic_c_sbsure@quicinc.com>
This commit is contained in:
Shilpa Suresh
2024-04-05 18:14:21 +05:30
parent 6a9d9efc0a
commit d172ce54ac
1 changed files with 17 additions and 5 deletions
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22
bindings/regulator/rpmh-regulator.yaml
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@@ -10,15 +10,15 @@ maintainers:
- David Collins <quic_collinsd@quicinc.com>
description: |
rpmh-regulator devices support PMIC regulator management via the Voltage
Regulator Manager (VRM), Aggregated Resource Controller (ARC) and
Oscillator Buffer (XOB) RPMh accelerators. The APPS processor communicates
rpmh-regulator devices support PMIC regulator management via the Voltage Regulator
Manager (VRM), Aggregated Resource Controller (ARC), Oscillator Buffer (XOB) and
Programmable Boot Sequencer (PBS) RPMh accelerators. The APPS processor communicates
with these hardware blocks via a Resource State Coordinator (RSC) using command
packets. The VRM allows changing four parameters for a given regulator: enable state,
output voltage, operating mode and minimum headroom voltage. The ARC allows changing
only a single parameter for a given regulator: its operating level. This
operating level is fed into CPR which then decides upon a final explicit voltage
for the regulator. The XOB allows changing only a single parameter for a given
for the regulator. The XOB and PBS allow changing only a single parameter for a given
regulator: its enable state. Despite its name, the XOB is capable of controlling
the enable state of any PMIC peripheral. It is used for clock buffers, low-voltage
switches, and LDO/SMPS regulators which have a fixed voltage and mode.
@@ -36,6 +36,7 @@ properties:
- qcom,rpmh-vrm-regulator
- qcom,rpmh-arc-regulator
- qcom,rpmh-xob-regulator
- qcom,rpmh-pbs-regulator
qcom,resource-name:
description: |
@@ -139,7 +140,7 @@ patternProperties:
regulator-enable-ramp-delay:
description: |
For VRM and XOB resources, the time in microseconds to delay
For VRM, XOB and PBS resources, the time in microseconds to delay
after enabling a regulator.
qcom,set:
@@ -295,6 +296,17 @@ examples:
};
};
rpmh-regulator-vrmsd {
compatible = "qcom,rpmh-pbs-regulator";
qcom,resource-name = "vrm.sd";
L24B_PBS:
pm6450_l24_pbs: regulator-pm6450-l24-pbs {
regulator-name = "pm6450_l24_pbs";
qcom,set = <RPMH_REGULATOR_SET_ALL>;
};
};
- |
#include <dt-bindings/regulator/qcom,rpmh-regulator-levels.h>