diff options
| author | Osvaldo Banuelos <osvaldob@codeaurora.org> | 2016-05-23 17:12:08 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2016-07-26 18:35:52 -0700 |
| commit | 9992623763c36dc7c46329e69d8b03beac126761 (patch) | |
| tree | e6c605d9bb9573b07999f8b456746b77ce2f1f10 /Documentation | |
| parent | ef0049eefdf23ca90a53205ee0fd0482795a063c (diff) | |
regulator: cprh-kbss-regulator: add support for APM crossover corner
Add support for a corner whose open-loop voltage corresponds to the
VDD supply voltage required during an APM switch transition. This
corner is requested by OSM hardware to the CPRh controller when
the VDD supply must be set to a specific voltage to ensure a stable
APM switch procedure. Define a crossover corner of 880 mV for both
VDD_APC CPR devices.
CRs-Fixed: 1021656
Change-Id: Icf4b640ec2c330b0d9721d3494297e2d8445c9b6
Signed-off-by: Osvaldo Banuelos <osvaldob@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/cprh-kbss-regulator.txt | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/regulator/cprh-kbss-regulator.txt b/Documentation/devicetree/bindings/regulator/cprh-kbss-regulator.txt index b9143cfc2587..833fb645b92a 100644 --- a/Documentation/devicetree/bindings/regulator/cprh-kbss-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/cprh-kbss-regulator.txt @@ -42,10 +42,21 @@ KBSS specific properties: - qcom,apm-threshold-voltage Usage: optional Value type: <u32> - Definition: Specifies the APM threshold voltage in microvolts. If the - VDD_APCC supply voltage is above this level, then the APM is - switched to use VDD_APCC. If VDD_APCC is below this level, - then the APM is switched to use VDD_MX. + Definition: Specifies the APM threshold voltage in microvolts. The + floor to ceiling range for every corner is adjusted to ensure + it does not intersect this voltage. The value of this property + must match with the APM threshold voltage defined in the OSM + device to ensure that if the VDD_APCC supply voltage is above + this level, then the APM is switched to use VDD_APCC and if + VDD_APCC is below this level, then the APM is switched to use + VDD_MX. + +- qcom,apm-crossover-voltage + Usage: required if qcom,apm-threshold-voltage is specified + Value type: <u32> + Definition: Specifies the APM crossover voltage in microvolts which + corresponds to the voltage the VDD supply must be set at + during an APM switch transition. - qcom,apm-hysteresis-voltage Usage: optional |