[PATCH 1/3] input: cygnus-update touchscreen dt node document
From: Raveendra Padasalagi <hidden>
Date: 2016-02-09 09:06:07
Also in:
linux-arm-kernel, linux-input, lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Dmitry Torokhov, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Touch screen driver is modified to use syscon framework based register read/write API's. So added syscon node and related changes in dt file.Updating the device tree documentation file to reflect the changes. Signed-off-by: Raveendra Padasalagi <redacted> Reviewed-by: Ray Jui <redacted> Reviewed-by: Scott Branden <scott.branden@broadcom.com> --- .../input/touchscreen/brcm,iproc-touchscreen.txt | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
index 34e3382..67599ae 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/brcm,iproc-touchscreen.txt@@ -2,8 +2,16 @@ Required properties: - compatible: must be "brcm,iproc-touchscreen" -- reg: physical base address of the controller and length of memory mapped - region. + +One of the below 2 property is mandatory. +- ts_syscon: handler of syscon node defining physical base address + of the controller and length of memory mapped region. + If this property is selected please make sure MFD_SYSCON config + is enabled in the defconfig file. +or +- reg: physical base address of the controller and length of memory + mapped region. + - clocks: The clock provided by the SOC to driver the tsc - clock-name: name for the clock - interrupts: The touchscreen controller's interrupt
@@ -54,12 +62,16 @@ Optional properties: - touchscreen-inverted-y: Y axis is inverted (boolean) Example: + ts_adc_syscon: ts_adc_syscon@0x180a6000 { + compatible = "syscon"; + reg = <0x180a6000 0xc30>; + }; touchscreen: tsc@0x180A6000 { compatible = "brcm,iproc-touchscreen"; #address-cells = <1>; #size-cells = <1>; - reg = <0x180A6000 0x40>; + syscon = <&ts_adc_syscon>; clocks = <&adc_clk>; clock-names = "tsc_clk"; interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
--
1.9.1