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bindings: input: qcom-hv-haptics: Change to use 8-bit FIFO data

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Hardware with revision 2 is changed to use 8-bit FIFO memory while
revision 1 is using 9-bit FIFO memory. To unify the data assignment
from devicetree, change to use 8-bit data for "qcom,wf-fifo-data"
property. Software can expand the 8-bit data to 9-bit for V1
hardware accordingly.

Change-Id: I00749a3cb395bf38ffd4d0cc9fd48de29b949c6d
This commit is contained in:
Fenglin Wu 2020-03-06 19:43:44 +08:00
commit a695bcfefd
1 changed files with 8 additions and 7 deletions
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15
bindings/input/qcom-hv-haptics.txt
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@ -166,10 +166,11 @@ different vibration effects:
- qcom,wf-fifo-data:
Usage: optional
Value type: <prop-encoded-array>
Definition: Defines a 9-bit data array of patterns which will be filled
into the FIFO memory and played when FIFO mode is selected.
The array needs to be specified as 16-bit using '/bits/ 16'
parameter. Either "qcom,wf-pattern-data" or "qcom,wf-fifo-data"
Definition: Defines a byte array of patterns which will be filled into
the FIFO memory and played when FIFO mode is selected.
The array needs to be specified as 8-bit using '/bits/ 8'
parameter, or using '[]' instead of '<>'.
Either "qcom,wf-pattern-data" or "qcom,wf-fifo-data"
need to be defined in one effect child node. If both are
defined, then the FIFO data defined in this property will be
ignored.
@ -254,9 +255,9 @@ Example:
/* DOUBLE_CLICK effect */
qcom,effect-id = <1>;
qcom,wf-vmax-mv = <5000>;
qcom,wf-fifo-data = /bits/ 16 <0x1ff 0x1ff 0x1ff 0x1ff 0x1ff
0x1ff 0x1ff 0x1ff 0x1ff 0x1ff
0x1ff 0x1ff 0x1ff 0x1ff 0x1ff>;
qcom,wf-fifo-data = /bits/ 8 <0xff 0xff 0xff 0xff 0xff
0xff 0xff 0xff 0xff 0xff
0xff 0xff 0xff 0xff 0xff>;
qcom,wf-fifo-period = <S_PERIOD_F_8KHZ>;
qcom,wf-brake-pattern = /bits/ 8 <0x7f 0x5f 0x3f>;
qcom,wf-auto-res-disable;