diff options
| author | Tirupathi Reddy <tirupath@codeaurora.org> | 2016-02-11 18:00:22 +0530 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-25 16:02:44 -0700 |
| commit | 0dc93b15a84a8350081acd29592ef873be1918c9 (patch) | |
| tree | 8f400e5b811a3e3e1fb996c22f7c6e207bf18882 /Documentation | |
| parent | 7f3712ee81e1acc1e34def428cf621aec6a7a651 (diff) | |
regulator: cpr4: Add miscellaneous fuse based voltage adjustments
Apply voltage adjustments for required voltage corners based on
different values of selected miscellaneous fuse bits. Apply the
adjustments to both open-loop voltages and closed-loop target
quotients.
CRs-Fixed: 982984
Change-Id: Ic45949afc8445d35c245434a7f51e4859a5978ad
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/regulator/cpr4-apss-regulator.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/regulator/cpr4-apss-regulator.txt b/Documentation/devicetree/bindings/regulator/cpr4-apss-regulator.txt index 61382b562676..4864bef72962 100644 --- a/Documentation/devicetree/bindings/regulator/cpr4-apss-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/cpr4-apss-regulator.txt @@ -348,6 +348,27 @@ APSS specific properties: regardless of the fuse combination and speed bin found on a given chip. +- qcom,cpr-misc-fuse-voltage-adjustment + Usage: optional + Value type: <prop-encoded-array> + Definition: A grouping of integer tuple lists where each tuple defines + the voltage adjustments in microvolts for each voltage + corner in order from lowest to highest. This adjustment is + applied to both open-loop and closed-loop voltages. + + Each tuple list must contain a number of tuples equal to + 2 to the power of the number of bits selected for misc + voltage adj fuse definition. For MSMTITANIUM the tuple + list must contain 2 tuples for the 1-bit misc fuse. + Tuples in a list should be specified in ascending order + according to the misc fuse value assuming that the fuse + is treated like an unsigned integer. + + The tuple list grouping must contain qcom,cpr-speed-bins + number of tuple lists in which case the lists are matched to + speed bins 1-to-1 or exactly 1 list which is used regardless + of the speed bin found on a given chip. + ======= Example ======= @@ -422,6 +443,13 @@ apc_cpr: cpr4-ctrl@b018000 { 1689600000 1843200000 1958400000 2150400000 2208000000>; + qcom,cpr-misc-fuse-voltage-adjustment = + /* Speed bin 0; misc fuse 0..1 */ + < 0 0 0 0 + 0 0 0 0>, + < 0 0 30000 0 + 0 0 0 0>; + qcom,allow-voltage-interpolation; qcom,allow-quotient-interpolation; qcom,cpr-scaled-open-loop-voltage-as-ceiling; |