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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-06-18 17:25:08 -0700 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2016-06-18 17:25:08 -0700 |
commit | 6ea24cf79e055f0a62a64baa8587e2254a493c7b (patch) | |
tree | c5cd6113ed93854b1bc30cd471c366f080c4be2f /Documentation/devicetree/bindings/input | |
parent | 540c26087bfbad6ea72758b76b16ae6282a73fea (diff) | |
parent | 488326947cd1f038da8d2c9068a0d07b913b7983 (diff) | |
download | linux-stable-6ea24cf79e055f0a62a64baa8587e2254a493c7b.tar.gz linux-stable-6ea24cf79e055f0a62a64baa8587e2254a493c7b.tar.bz2 linux-stable-6ea24cf79e055f0a62a64baa8587e2254a493c7b.zip |
Merge branch 'cec-defines' into for-linus
Let's bring in HDMI CEC defines to ease merging CEC support in the next
merge window.
Diffstat (limited to 'Documentation/devicetree/bindings/input')
-rw-r--r-- | Documentation/devicetree/bindings/input/ads7846.txt | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt | 35 |
2 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/ads7846.txt b/Documentation/devicetree/bindings/input/ads7846.txt index 33a1638b61d6..c6cfe2e3ed41 100644 --- a/Documentation/devicetree/bindings/input/ads7846.txt +++ b/Documentation/devicetree/bindings/input/ads7846.txt @@ -29,6 +29,8 @@ Optional properties: ti,vref-delay-usecs vref supply delay in usecs, 0 for external vref (u16). ti,vref-mv The VREF voltage, in millivolts (u16). + Set to 0 to use internal refernce + (ADS7846). ti,keep-vref-on set to keep vref on for differential measurements as well ti,swap-xy swap x and y axis diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt new file mode 100644 index 000000000000..cdf05f9b2329 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt @@ -0,0 +1,35 @@ +Freescale mx25 TS conversion queue module + +mx25 touchscreen conversion queue module which controls the ADC unit of the +mx25 for attached touchscreens. + +Required properties: + - compatible: Should be "fsl,imx25-tcq". + - reg: Memory range of the device. + - interrupts: Should be the interrupt number associated with this module within + the tscadc unit (<0>). + - interrupt-parent: Should be a phandle to the tscadc unit. + - fsl,wires: Should be '<4>' or '<5>' + +Optional properties: + - fsl,pen-debounce-ns: Pen debounce time in nanoseconds. + - fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value + between 1 and 4096. It is the ratio between the internal reference voltage + and the measured voltage after the plate was precharged. Resistence between + plates and therefore the voltage decreases with pressure so that a smaller + value is equivalent to a higher pressure. + - fsl,settling-time-ns: Settling time in nanoseconds. The settling time is before + the actual touch detection to wait for an even charge distribution in the + plate. + +This device includes two conversion queues which can be added as subnodes. +The first queue is for the touchscreen, the second for general purpose ADC. + +Example: + tsc: tcq@50030400 { + compatible = "fsl,imx25-tcq"; + reg = <0x50030400 0x60>; + interrupt-parent = <&tscadc>; + interrupts = <0>; + fsl,wires = <4>; + }; |