From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Mark Rutland <mark.rutland@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Shawn Guo <shawnguo@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Sam Ravnborg <sam@ravnborg.org>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>
Cc: devicetree@vger.kernel.org,
Robin van der Gracht <robin@protonic.nl>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Oleksij Rempel <o.rempel@pengutronix.de>,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
David Jander <david@protonic.nl>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 4/5] ARM: dts: imx6dl: plym2m, prtvt7, victgo: make use of new resistive-adc-touch driver
Date: Mon, 31 Jan 2022 11:28:40 +0100 [thread overview]
Message-ID: <20220131102841.1955032-5-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20220131102841.1955032-1-o.rempel@pengutronix.de>
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>
---
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";
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>;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6dl-prtvt7.dts b/arch/arm/boot/dts/imx6dl-prtvt7.dts
index baaa6ffc4df9..59e0674420a1 100644
--- a/arch/arm/boot/dts/imx6dl-prtvt7.dts
+++ b/arch/arm/boot/dts/imx6dl-prtvt7.dts
@@ -235,6 +235,18 @@ simple-audio-card,codec {
frame-master;
};
};
+
+ 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>;
+ };
};
&audmux {
@@ -277,22 +289,41 @@ &ecspi2 {
pinctrl-0 = <&pinctrl_ecspi2>;
status = "okay";
- touchscreen@0 {
- compatible = "ti,tsc2046";
+ adc_ts: adc@0 {
+ compatible = "ti,tsc2046e-adc";
reg = <0>;
pinctrl-0 = <&pinctrl_tsc>;
pinctrl-names ="default";
- spi-max-frequency = <100000>;
- interrupts-extended = <&gpio3 20 IRQ_TYPE_EDGE_FALLING>;
- pendown-gpio = <&gpio3 20 GPIO_ACTIVE_LOW>;
- 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;
+ spi-max-frequency = <1000000>;
+ interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>;
+ #io-channel-cells = <1>;
+
+ #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>;
+ };
};
};
diff --git a/arch/arm/boot/dts/imx6dl-victgo.dts b/arch/arm/boot/dts/imx6dl-victgo.dts
index d37ba4ed847d..52de091ea452 100644
--- a/arch/arm/boot/dts/imx6dl-victgo.dts
+++ b/arch/arm/boot/dts/imx6dl-victgo.dts
@@ -181,6 +181,18 @@ simple-audio-card,codec {
frame-master;
};
};
+
+ 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>;
+ };
};
&audmux {
@@ -244,22 +256,41 @@ &ecspi2 {
pinctrl-0 = <&pinctrl_ecspi2>;
status = "okay";
- touchscreen@0 {
- compatible = "ti,tsc2046";
+ adc_ts: adc@0 {
+ compatible = "ti,tsc2046e-adc";
reg = <0>;
- pinctrl-names = "default";
pinctrl-0 = <&pinctrl_touchscreen>;
- spi-max-frequency = <200000>;
- interrupts-extended = <&gpio5 8 IRQ_TYPE_EDGE_FALLING>;
- pendown-gpio = <&gpio5 8 GPIO_ACTIVE_LOW>;
- touchscreen-size-x = <800>;
- touchscreen-size-y = <480>;
- 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>;
- wakeup-source;
+ pinctrl-names ="default";
+ spi-max-frequency = <1000000>;
+ interrupts-extended = <&gpio5 8 IRQ_TYPE_LEVEL_LOW>;
+ #io-channel-cells = <1>;
+
+ #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>;
+ };
};
};
--
2.30.2
next prev parent reply other threads:[~2022-01-31 10:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-31 10:28 [PATCH v2 0/5] ARM: dts: protonic maintenance patches Oleksij Rempel
2022-01-31 10:28 ` [PATCH v2 1/5] ARM: dts: imx6dl-prtvt7: Add display and panel nodes Oleksij Rempel
2022-01-31 10:28 ` [PATCH v2 2/5] ARM: dts: imx6dl-prtvt7: Add missing tvp5150 video decoder node Oleksij Rempel
2022-02-11 13:12 ` Shawn Guo
2022-01-31 10:28 ` [PATCH v2 3/5] ARM: dts: imx6qdl-vicut1: add CAN termination support Oleksij Rempel
2022-01-31 15:39 ` Sam Ravnborg
2022-02-01 5:28 ` Oleksij Rempel
2022-01-31 10:28 ` Oleksij Rempel [this message]
2022-01-31 15:42 ` [PATCH v2 4/5] ARM: dts: imx6dl: plym2m, prtvt7, victgo: make use of new resistive-adc-touch driver Sam Ravnborg
2022-02-01 5:26 ` Oleksij Rempel
2022-01-31 10:28 ` [PATCH v2 5/5] ARM: dts: imx6dl: plym2m, prtvt7, victgo: add thermal zones and hwmon Oleksij Rempel
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