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authorDamien Riegel <damien.riegel@savoirfairelinux.com>2015-12-16 11:49:14 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-12-16 14:00:51 -0800
commit40e3be3933aee185fd6ab1ec87dfaf3502d9f5b3 (patch)
tree9a540b813042313ad181449d4260543a43f9c1a6 /Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt
parent6b0f8f9c52efe24d6dac06ab963b7bd91c723751 (diff)
Input: add touchscreen support for TS-4800
On this board, the touchscreen, an ads7843, is not handled directly by Linux but by a companion FPGA. This FPGA is memory-mapped and the IP design is very similar to the mk712. This commit adds the support for this IP. Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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diff --git a/Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/ts4800-ts.txt
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+* TS-4800 Touchscreen bindings
+
+Required properties:
+- compatible: must be "technologic,ts4800-ts"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- syscon: phandle / integers array that points to the syscon node which
+ describes the FPGA's syscon registers.
+ - phandle to FPGA's syscon
+ - offset to the touchscreen register
+ - offset to the touchscreen enable bit