On Mon, Jan 31, 2022 at 11:28:40AM +0100, Oleksij Rempel wrote:
The tsc2046 is an ADC used as touchscreen controller. To share as mach
much
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
arch/arm/boot/dts/imx6dl-plym2m.dts | 59 +++++++++++++++++++++-------- arch/arm/boot/dts/imx6dl-prtvt7.dts | 57 +++++++++++++++++++++------- arch/arm/boot/dts/imx6dl-victgo.dts | 59 ++++++++++++++++++++++------- 3 files changed, 132 insertions(+), 43 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 @@ reg_12v0: regulator-12v0 { 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 @@ &ecspi2 { pinctrl-0 = <&pinctrl_ecspi2>; status = "okay";
- touchscreen@0 {
compatible = "ti,tsc2046";
- adc_ts: adc@0 {
compatible = "ti,tsc2046e-adc";
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>;
I quickly skimmed the patch - we seem to loose the pendown-gpio in most of the patches - I do not see it replaced.
Sam