diff options
author | Stefan Agner <stefan@agner.ch> | 2018-12-21 14:46:35 +0100 |
---|---|---|
committer | Lee Jones <lee.jones@linaro.org> | 2019-01-16 12:37:36 +0000 |
commit | 81cdab79818988d27d8aeb162b7988c9e6dde936 (patch) | |
tree | 2820f292fc7ad19906fe33e6da0e6c7b787877d5 /Documentation/devicetree/bindings/iio | |
parent | 9f3d084965a5544f096d4f769e274d4c2892079b (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>
Diffstat (limited to 'Documentation/devicetree/bindings/iio')
-rw-r--r-- | Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt | 21 |
1 files changed, 21 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..480e66422625 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/stmpe-adc.txt @@ -0,0 +1,21 @@ +STMPE ADC driver +---------------- + +Required properties: + - compatible: "st,stmpe-adc" + +Optional properties: +Note that the ADC is shared with the STMPE touchscreen. ADC related settings +have to be done in the mfd. +- st,norequest-mask: bitmask specifying which ADC channels should _not_ be + requestable due to different usage (e.g. touch) + +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,norequest-mask = <0x0F>; /* dont use ADC CH3-0 */ + }; |