diff options
| author | Stefan Agner <stefan@agner.ch> | 2018-12-21 14:46:35 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2020-04-15 01:24:39 +0200 |
| commit | 292d6240a6e63d0e58370e38f19a1813ed79acbc (patch) | |
| tree | 52779eb1eb369d4ec653696fa4bcafa3cacb9dc8 /Documentation/devicetree/bindings/mfd | |
| parent | 858fb938513e3331513434476036e3e89b1f7c80 (diff) | |
iio: adc: add STMPE ADC devicetree bindings
This adds the devicetree bindings for the STMPE ADC. This also corrects
a typo in st,sample-time it is rather "6 -> 124 clocks" according
to the datasheet and not 144.
We need to use the naming stmpe_adc in devicetree because this is given
by the mfd device.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
(cherry-picked from commit 81cdab79818988d27d8aeb162b7988c9e6dde936)
Diffstat (limited to 'Documentation/devicetree/bindings/mfd')
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/stmpe.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/stmpe.txt b/Documentation/devicetree/bindings/mfd/stmpe.txt index ca5a74e413e6..dbf6efba1413 100644 --- a/Documentation/devicetree/bindings/mfd/stmpe.txt +++ b/Documentation/devicetree/bindings/mfd/stmpe.txt @@ -15,6 +15,20 @@ Optional properties: - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024 - irq-gpio : If present, which GPIO to use for event IRQ +Optional properties for devices with touch and ADC (STMPE811|STMPE610): + - st,sample-time : ADC conversion time in number of clock. + 0 -> 36 clocks 4 -> 80 clocks (recommended) + 1 -> 44 clocks 5 -> 96 clocks + 2 -> 56 clocks 6 -> 124 clocks + 3 -> 64 clocks + - st,mod-12b : ADC Bit mode + 0 -> 10bit ADC 1 -> 12bit ADC + - st,ref-sel : ADC reference source + 0 -> internal 1 -> external + - st,adc-freq : ADC Clock speed + 0 -> 1.625 MHz 2 || 3 -> 6.5 MHz + 1 -> 3.25 MHz + Example: stmpe1601: stmpe1601@40 { |