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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2022-02-11 16:30:34 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2022-02-13 08:20:04 +0300 |
| commit | add9b6b629cc95686b67577ffa0a64e83dc1f143 (patch) | |
| tree | 4d729f0f9231c3c11e7f44e4865dcff6d73baf9e /arch/arm/boot/dts/imx6dl-plym2m.dts | |
| parent | 9a6dbef4f234e648f7e0467f49d1f26575fc823d (diff) | |
| download | linux-add9b6b629cc95686b67577ffa0a64e83dc1f143.tar.xz | |
ARM: dts: imx6dl: plym2m, prtvt7, victgo: make use of new resistive-adc-touch driver
The tsc2046 is an ADC used as touchscreen controller. To share as mach
code as possible, we should use it as actual ADC + virtual touchscreen
controller.
With this patch we make use of the new kernel IIO and HID infrastructure.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/imx6dl-plym2m.dts')
| -rw-r--r-- | arch/arm/boot/dts/imx6dl-plym2m.dts | 59 |
1 files changed, 43 insertions, 16 deletions
diff --git a/arch/arm/boot/dts/imx6dl-plym2m.dts b/arch/arm/boot/dts/imx6dl-plym2m.dts index 60fe5f14666e..73c7622bfe0f 100644 --- a/arch/arm/boot/dts/imx6dl-plym2m.dts +++ b/arch/arm/boot/dts/imx6dl-plym2m.dts @@ -101,6 +101,18 @@ regulator-min-microvolt = <12000000>; regulator-max-microvolt = <12000000>; }; + + touchscreen { + compatible = "resistive-adc-touch"; + io-channels = <&adc_ts 1>, <&adc_ts 3>, <&adc_ts 4>, + <&adc_ts 5>; + io-channel-names = "y", "z1", "z2", "x"; + touchscreen-min-pressure = <64687>; + touchscreen-inverted-x; + touchscreen-inverted-y; + touchscreen-x-plate-ohms = <300>; + touchscreen-y-plate-ohms = <800>; + }; }; &can1 { @@ -129,26 +141,41 @@ pinctrl-0 = <&pinctrl_ecspi2>; status = "okay"; - touchscreen@0 { - compatible = "ti,tsc2046"; + adc_ts: adc@0 { + compatible = "ti,tsc2046e-adc"; reg = <0>; pinctrl-0 = <&pinctrl_tsc2046>; pinctrl-names ="default"; - spi-max-frequency = <100000>; - interrupts-extended = <&gpio3 20 IRQ_TYPE_EDGE_FALLING>; - pendown-gpio = <&gpio3 20 GPIO_ACTIVE_LOW>; + spi-max-frequency = <1000000>; + interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>; + #io-channel-cells = <1>; - touchscreen-inverted-x; - touchscreen-inverted-y; - touchscreen-max-pressure = <4095>; - - ti,vref-delay-usecs = /bits/ 16 <100>; - ti,x-plate-ohms = /bits/ 16 <800>; - ti,y-plate-ohms = /bits/ 16 <300>; - ti,debounce-max = /bits/ 16 <3>; - ti,debounce-tol = /bits/ 16 <70>; - ti,debounce-rep = /bits/ 16 <3>; - wakeup-source; + #address-cells = <1>; + #size-cells = <0>; + + channel@1 { + reg = <1>; + settling-time-us = <700>; + oversampling-ratio = <5>; + }; + + channel@3 { + reg = <3>; + settling-time-us = <700>; + oversampling-ratio = <5>; + }; + + channel@4 { + reg = <4>; + settling-time-us = <700>; + oversampling-ratio = <5>; + }; + + channel@5 { + reg = <5>; + settling-time-us = <700>; + oversampling-ratio = <5>; + }; }; }; |