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bindings: pwm-qti-lpg: Add bindings for ramp pause support

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The ramp pause properties are now supported when SDAMs are used. Update
the bindings to reflect this change.

Change-Id: I1ba743542754af7f84bb96e3d9eb74d47eaf287f
This commit is contained in:
Guru Das Srinagesh
2021-05-11 11:18:01 -07:00
parent bc2e3e79bd
commit 68cbd3c128
1 changed files with 32 additions and 20 deletions
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52
bindings/pwm/pwm-qti-lpg.txt
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@@ -164,6 +164,20 @@ specified for a channel that is configured as PFM enabled using the
Definition: The flag to specify if LPG would be ramping with the LUT
pattern repeatedly.
- qcom,ramp-pause-hi-count:
Usage: optional
Value type: <u32>
Definition: The number of step counts for which the LPG will continue
to hold the output after it has ramped up to the high
index of the LUT. Allowed range: 0 - 254 if SDAM is used.
- qcom,ramp-pause-lo-count:
Usage: optional
Value type: <u32>
Definition: The number of step counts for which the LPG will continue
to hold the output after it has ramped down to the low
index of the LUT. Allowed range: 0 - 254 if SDAM is used.
- qcom,ramp-from-low-to-high:
Usage: optional
Value type: <empty>
@@ -181,20 +195,6 @@ specified for a channel that is configured as PFM enabled using the
index when low index is reached. This property is not
required when SDAM module is used.
- qcom,ramp-pause-hi-count:
Usage: optional
Value type: <u32>
Definition: The step count that LPG stop the output when it ramped up
to the high index of the LUT. This property is not
required when SDAM module is used.
- qcom,ramp-pause-lo-count:
Usage: optional
Value type: <u32>
Definition: The step count that LPG stop the output when it ramped up
to the low index of the LUT. This property is not
required when SDAM module is used.
Example when LUT pattern is stored in a LUT module:
pm8150l_lpg: lpg@b100 {
@@ -252,28 +252,34 @@ Example when LUT pattern is stored in a SDAM module:
qcom,lut-patterns = <0 14 28 42 56 70 84 100
100 84 70 56 42 28 14 0>;
lpg@1 {
qcom,lpg-sdam-base = <0x48>:
qcom,lpg-chan-id = <1>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <15>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x48>:
};
lpg@2 {
qcom,lpg-sdam-base = <0x56>;
qcom,lpg-chan-id = <2>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <15>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x56>;
};
lpg@3 {
qcom,lpg-sdam-base = <0x64>;
qcom,lpg-chan-id = <3>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <15>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x64>;
};
};
@@ -291,29 +297,35 @@ Example when LUT pattern is stored in two SDAM modules:
qcom,lut-patterns = <0 10 20 30 40 50 60 70 80 90 100
90 80 70 60 50 40 30 20 10 0>;
lpg@1 {
qcom,lpg-sdam-base = <0x48>;
qcom,lpg-chan-id = <1>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <19>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x48>;
};
lpg@2 {
qcom,lpg-sdam-base = <0x56>;
qcom,lpg-chan-id = <2>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <19>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x56>;
};
lpg@3 {
qcom,lpg-sdam-base = <0x64>;
qcom,lpg-chan-id = <3>;
qcom,ramp-step-ms = <200>;
qcom,ramp-low-index = <0>;
qcom,ramp-high-index = <19>;
qcom,ramp-pause-hi-count = <10>;
qcom,ramp-pause-lo-count = <10>;
qcom,ramp-pattern-repeat;
qcom,lpg-sdam-base = <0x64>;
};
};