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From: dillon.minfei@gmail.com
To: robh+dt@kernel.org, mcoquelin.stm32@gmail.com,
	alexandre.torgue@st.com, p.zabel@pengutronix.de,
	pierre-yves.mordret@st.com, philippe.schenker@toradex.com
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-i2c@vger.kernel.org, devicetree@vger.kernel.org,
	dillon min <dillon.minfei@gmail.com>
Subject: [PATCH v4 3/4] ARM: dts: stm32: enable stmpe811 on stm32429-disco board
Date: Tue,  9 Jun 2020 21:26:42 +0800	[thread overview]
Message-ID: <1591709203-12106-4-git-send-email-dillon.minfei@gmail.com> (raw)
In-Reply-To: <1591709203-12106-1-git-send-email-dillon.minfei@gmail.com>

From: dillon min <dillon.minfei@gmail.com>

Enable the stmpe811 touch screen on stm32429-disco board.

Signed-off-by: dillon min <dillon.minfei@gmail.com>
---
 arch/arm/boot/dts/stm32f429-disco.dts | 47 +++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 30c0f6717871..fad1ec10efb6 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -49,6 +49,8 @@
 #include "stm32f429.dtsi"
 #include "stm32f429-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "STMicroelectronics STM32F429i-DISCO board";
@@ -127,3 +129,48 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	stmpe811@41 {
+		compatible = "st,stmpe811";
+		reg = <0x41>;
+		interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpioa>;
+		/* 3.25 MHz ADC clock speed */
+		st,adc-freq = <1>;
+		/* 12-bit ADC */
+		st,mod-12b = <1>;
+		/* internal ADC reference */
+		st,ref-sel = <0>;
+		/* ADC converstion time: 80 clocks */
+		st,sample-time = <4>;
+
+		stmpe_touchscreen {
+			compatible = "st,stmpe-ts";
+			/* 8 sample average control */
+			st,ave-ctrl = <3>;
+			/* 7 length fractional part in z */
+			st,fraction-z = <7>;
+			/*
+			 * 50 mA typical 80 mA max touchscreen drivers
+			 * current limit value
+			 */
+			st,i-drive = <1>;
+			/* 1 ms panel driver settling time */
+			st,settling = <3>;
+			/* 5 ms touch detect interrupt delay */
+			st,touch-det-delay = <5>;
+		};
+
+		stmpe_adc {
+			compatible = "st,stmpe-adc";
+			/* forbid to use ADC channels 3-0 (touch) */
+			st,norequest-mask = <0x0F>;
+		};
+	};
+};
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: dillon.minfei@gmail.com
To: robh+dt@kernel.org, mcoquelin.stm32@gmail.com,
	alexandre.torgue@st.com, p.zabel@pengutronix.de,
	pierre-yves.mordret@st.com, philippe.schenker@toradex.com
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-i2c@vger.kernel.org, dillon min <dillon.minfei@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 3/4] ARM: dts: stm32: enable stmpe811 on stm32429-disco board
Date: Tue,  9 Jun 2020 21:26:42 +0800	[thread overview]
Message-ID: <1591709203-12106-4-git-send-email-dillon.minfei@gmail.com> (raw)
In-Reply-To: <1591709203-12106-1-git-send-email-dillon.minfei@gmail.com>

From: dillon min <dillon.minfei@gmail.com>

Enable the stmpe811 touch screen on stm32429-disco board.

Signed-off-by: dillon min <dillon.minfei@gmail.com>
---
 arch/arm/boot/dts/stm32f429-disco.dts | 47 +++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index 30c0f6717871..fad1ec10efb6 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -49,6 +49,8 @@
 #include "stm32f429.dtsi"
 #include "stm32f429-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "STMicroelectronics STM32F429i-DISCO board";
@@ -127,3 +129,48 @@
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	stmpe811@41 {
+		compatible = "st,stmpe811";
+		reg = <0x41>;
+		interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpioa>;
+		/* 3.25 MHz ADC clock speed */
+		st,adc-freq = <1>;
+		/* 12-bit ADC */
+		st,mod-12b = <1>;
+		/* internal ADC reference */
+		st,ref-sel = <0>;
+		/* ADC converstion time: 80 clocks */
+		st,sample-time = <4>;
+
+		stmpe_touchscreen {
+			compatible = "st,stmpe-ts";
+			/* 8 sample average control */
+			st,ave-ctrl = <3>;
+			/* 7 length fractional part in z */
+			st,fraction-z = <7>;
+			/*
+			 * 50 mA typical 80 mA max touchscreen drivers
+			 * current limit value
+			 */
+			st,i-drive = <1>;
+			/* 1 ms panel driver settling time */
+			st,settling = <3>;
+			/* 5 ms touch detect interrupt delay */
+			st,touch-det-delay = <5>;
+		};
+
+		stmpe_adc {
+			compatible = "st,stmpe-adc";
+			/* forbid to use ADC channels 3-0 (touch) */
+			st,norequest-mask = <0x0F>;
+		};
+	};
+};
-- 
2.7.4


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  parent reply	other threads:[~2020-06-09 13:27 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-09 13:26 [PATCH v4 0/4] Enable stmpe811 touch screen on stm32f429-disco board dillon.minfei
2020-06-09 13:26 ` dillon.minfei
2020-06-09 13:26 ` [PATCH v4 1/4] ARM: dts: stm32: add I2C3 support on STM32F429 SoC dillon.minfei
2020-06-09 13:26   ` dillon.minfei
2020-06-09 13:26 ` [PATCH v4 2/4] ARM: dts: stm32: Add pin map for I2C3 controller on stm32f4 dillon.minfei
2020-06-09 13:26   ` dillon.minfei
2020-06-09 13:26 ` dillon.minfei [this message]
2020-06-09 13:26   ` [PATCH v4 3/4] ARM: dts: stm32: enable stmpe811 on stm32429-disco board dillon.minfei
2020-06-09 13:26 ` [PATCH v4 4/4] i2c: stm32f4: Fix stmpe811 get xyz data timeout issue dillon.minfei
2020-06-09 13:26   ` dillon.minfei
2021-03-15 12:43   ` dillon min
2021-03-15 12:43     ` dillon min
2021-03-15 13:00     ` Wolfram Sang
2021-03-15 13:00       ` Wolfram Sang
2021-05-07  2:54       ` dillon min
2021-05-07  2:54         ` dillon min
2021-05-07 12:29         ` [Linux-stm32] " Patrice CHOTARD
2021-05-07 12:29           ` Patrice CHOTARD
2021-05-07 12:47           ` dillon min
2021-05-07 12:47             ` dillon min
2020-06-15  9:08 ` [PATCH v4 0/4] Enable stmpe811 touch screen on stm32f429-disco board Alexandre Torgue
2020-06-15  9:08   ` Alexandre Torgue
2020-06-15 10:06   ` dillon min
2020-06-15 10:06     ` dillon min

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