diff options
author | Philippe Schenker <philippe.schenker@toradex.com> | 2019-05-02 16:40:46 +0200 |
---|---|---|
committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-04-15 01:24:38 +0200 |
commit | 140bcd716dd2b10e5b2facf23c27fe8c090d7154 (patch) | |
tree | b43b11864fcb96fc7dcb0534bb87d697aad8b4f3 /Documentation/devicetree/bindings/iio | |
parent | 7a0e7e32af6adedc2f2f5246ecd3d9926af6c090 (diff) |
dt-bindings: Move binding for stmpe-adc out of staging
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Diffstat (limited to 'Documentation/devicetree/bindings/iio')
-rw-r--r-- | Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt b/Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt new file mode 100644 index 000000000000..b73a1069ed8e --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt @@ -0,0 +1,30 @@ +STMPE ADC driver +---------------- + +Required properties: + - compatible: "st,stmpe-adc" + +Optional properties: +Note that the ADC is shared with the STMPE touchscreen, so if using both the +settings should be the same. +If they are not, the last one to be initialized will win. +- st,sample-time: ADC converstion time in number of clock. (0 -> 36 clocks, 1 -> + 44 clocks, 2 -> 56 clocks, 3 -> 64 clocks, 4 -> 80 clocks, 5 -> 96 clocks, 6 + -> 144 clocks), recommended is 4. +- st,mod-12b: ADC Bit mode (0 -> 10bit ADC, 1 -> 12bit ADC) +- st,ref-sel: ADC reference source (0 -> internal reference, 1 -> external + reference) +- st,adc-freq: ADC Clock speed (0 -> 1.625 MHz, 1 -> 3.25 MHz, 2 || 3 -> 6.5 MHz) + +Node name must be stmpe_adc and should be child node of stmpe node to +which it belongs. + +Example: + + stmpe_adc { + compatible = "st,stmpe-adc"; + st,sample-time = <4>; + st,mod-12b = <1>; + st,ref-sel = <0>; + st,adc-freq = <1>; + }; |