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/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dadi,ad7879.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/touchscreen/adi,ad7879.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD7879(-1)/AD7889(-1) touchscreen interface (SPI/I2C)
10 - Frank Li <Frank.Li@nxp.com>
16 for I2C slave, use "adi,ad7879-1"
18 - adi,ad7879
19 - adi,ad7879-1
27 touchscreen-max-pressure:
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/linux/Documentation/hwmon/
H A Dmc13783-adc.rst1 Kernel driver mc13783-adc
10 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13783.pdf
16 Datasheet: https://www.nxp.com/docs/en/data-sheet/MC13892.pdf
22 - Sascha Hauer <s.hauer@pengutronix.de>
23 - Luotao Fu <l.fu@pengutronix.de>
26 -----------
29 Among other things they contain a 10-bit A/D converter. The converter has 16
31 A/D converter has a resolution of 2.25mV.
37 the General Purpose inputs and touchscreen.
42 - MC13783:
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/linux/Documentation/devicetree/bindings/input/
H A Dgoodix,gt7375p.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Goodix GT7375P touchscreen
10 - Douglas Anderson <dianders@chromium.org>
13 Supports the Goodix GT7375P touchscreen.
14 This touchscreen uses the i2c-hid protocol but has some non-standard
18 - $ref: /schemas/input/touchscreen/touchscreen.yaml#
23 - const: goodix,gt7375p
24 - items:
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H A Delan,ekth3000.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dmitry Torokhov <dmitry.torokhov@gmail.com>
13 - $ref: touchscreen/touchscreen.yaml#
25 wakeup-source:
29 vcc-supply:
40 elan,middle-button:
42 description: touchpad has a physical middle button
52 touchscreen-size-x: true
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H A Dhid-over-i2c.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/hid-over-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Benjamin Tissoires <benjamin.tissoires@redhat.com>
11 - Jiri Kosina <jkosina@suse.cz>
18 The specification has been written by Microsoft and is currently available here:
19 https://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
21 If this binding is used, the kernel module i2c-hid will handle the communication
25 - $ref: /schemas/input/touchscreen/touchscreen.yaml#
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H A Dsyna,rmi4.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jason A. Donenfeld <Jason@zx2c4.com>
11 - Matthias Schiffer <matthias.schiffer@ew.tq-group.com
12 - Vincent Huang <vincent.huang@tw.synaptics.com>
22 - syna,rmi4-i2c
23 - syna,rmi4-spi
28 '#address-cells':
31 '#size-cells':
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/linux/drivers/platform/x86/x86-android-tablets/
H A Dother.c1 // SPDX-License-Identifier: GPL-2.0-or-later
8 * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
19 #include <dt-bindings/leds/common.h>
21 #include "shared-psy-info.h"
22 #include "x86-android-tablets.h"
24 /* Acer Iconia One 7 B1-750 has an Android factory image with everything hardcoded */
26 "-1", "0", "0",
32 PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
42 /* Novatek NVT-ts touchscreen */
44 .type = "nt11205-ts",
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H A Dlenovo.c1 // SPDX-License-Identifier: GPL-2.0-or-later
8 * Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
27 #include "shared-psy-info.h"
28 #include "x86-android-tablets.h"
33 * The Android kernels have a hack in the i915 driver to write a non-standard
34 * panel specific DSI register to set the duty-cycle of the LCD's PWM output.
46 * But on some models the panel's PWM output defaults to a duty-cycle of
62 /* Lenovo Yoga Book X90F / X90L's Android factory image has everything hardcoded */
65 PROPERTY_ENTRY_U32("hid-descr-addr", 0x0001),
66 PROPERTY_ENTRY_U32("post-reset-deassert-delay-ms", 150),
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/linux/arch/arm/boot/dts/qcom/
H A Dqcom-msm8926-microsoft-superman-lte.dts1 // SPDX-License-Identifier: BSD-3-Clause
9 /dts-v1/;
11 #include "qcom-msm8226-microsoft-common.dtsi"
13 /* This device has touchscreen on i2c3 instead */
14 /delete-node/ &touchscreen;
18 compatible = "microsoft,superman-lte", "qcom,msm8926", "qcom,msm8226";
19 chassis-type = "handset";
25 touchscreen: touchscreen@4b { label
26 compatible = "syna,rmi4-i2c";
29 interrupts-extended = <&tlmm 17 IRQ_TYPE_EDGE_FALLING>;
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H A Dqcom-msm8926-microsoft-tesla.dts1 // SPDX-License-Identifier: BSD-3-Clause
9 /dts-v1/;
11 #include "qcom-msm8226-microsoft-common.dtsi"
13 /* This device has touchscreen on i2c1 instead */
14 /delete-node/ &touchscreen;
17 /delete-node/ &magnetometer;
22 chassis-type = "handset";
28 touchscreen: touchscreen@4b { label
29 compatible = "syna,rmi4-i2c";
32 interrupts-extended = <&tlmm 17 IRQ_TYPE_EDGE_FALLING>;
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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dsamsung,exynos-adc.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/samsung,exynos-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
15 - enum:
16 - samsung,exynos-adc-v1 # Exynos5250
17 - samsung,exynos-adc-v2
18 - samsung,exynos3250-adc
19 - samsung,exynos4212-adc # Exynos4212 and Exynos4412
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/linux/Documentation/devicetree/bindings/regulator/
H A Draspberrypi,7inch-touchscreen-panel-regulator.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/regulator/raspberrypi,7inch-touchscreen-panel-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RaspberryPi 7" display ATTINY88-based regulator/backlight controller
10 - Marek Vasut <marex@denx.de>
13 The RaspberryPi 7" display has an ATTINY88-based regulator/backlight
18 - $ref: regulator.yaml#
22 const: raspberrypi,7inch-touchscreen-panel-regulator
30 - compatible
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6q-var-mx6customboard.dts1 // SPDX-License-Identifier: GPL-2.0+
3 * Support for Variscite MX6 Carrier-board
9 /dts-v1/;
11 #include "imx6qdl-var-som.dtsi"
12 #include <dt-bindings/pwm/pwm.h>
15 model = "Variscite i.MX6 QUAD/DUAL VAR-SOM-MX6 Custom Board";
16 compatible = "variscite,mx6customboard", "variscite,var-som-imx6q", "fsl,imx6q";
18 panel0: lvds-panel0 {
19 compatible = "panel-lvds";
21 width-mm = <152>;
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H A Dimx6dl-lanmcu.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
7 /dts-v1/;
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/leds/common.h>
17 stdout-path = &uart4;
20 clock_ksz8081: clock-ksz8081 {
21 compatible = "fixed-clock";
22 #clock-cells = <0>;
23 clock-frequency = <50000000>;
24 clock-output-names = "enet_ref_pad";
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H A Dimx7-colibri-iris.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
16 interrupt-parent = <&gpio1>;
18 pinctrl-0 = <&pinctrl_atmel_adapter>;
19 reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>; /* SODIMM 30 / RST */
35 * transceiver off, that property has to be deleted and the gpio handled in userspace.
38 uart25-tx-on-hog {
39 gpio-hog;
41 output-high;
46 uart1-tx-on-hog {
47 gpio-hog;
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/linux/drivers/input/touchscreen/
H A Dwm97xx-core.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm97xx-core.c -- Touch screen driver core for Wolfson WM9705, WM9712
15 * - supports WM9705, WM9712, WM9713
16 * - polling mode
17 * - continuous mode (arch-dependent)
18 * - adjustable rpu/dpp settings
19 * - adjustable pressure current
20 * - adjustable sample settle delay
21 * - 4 and 5 wire touchscreens (5 wire is WM9712 only)
22 * - pen down detection
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H A Dads7846.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * ADS7846 based touchscreen and sensor driver
10 * - corgi_ts.c
11 * Copyright (C) 2004-2005 Richard Purdie
12 * - omap_ts.[hc], ads7846.h, ts_osk.c
23 #include <linux/input/touchscreen.h>
36 * This code has been heavily tested on a Nokia 770, and lightly
39 * Support for ads7843 tested on Atmel at91sam926x-EK.
40 * Support for ads7845 has only been stubbed in.
53 * note. The strength of filtering can be set in the board-* specific
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H A Draspberrypi-ts.c1 // SPDX-License-Identifier: GPL-2.0
3 * Raspberry Pi firmware based touchscreen driver
15 #include <linux/dma-mapping.h>
19 #include <linux/input/touchscreen.h>
20 #include <soc/bcm2835/raspberrypi-firmware.h>
70 memcpy_fromio(&regs, ts->fw_regs_va, sizeof(regs)); in rpi_ts_poll()
72 * We poll the memory based register copy of the touchscreen chip using in rpi_ts_poll()
73 * the number of points register to know whether the copy has been in rpi_ts_poll()
75 * 0 - 10 points) in rpi_ts_poll()
78 ts->fw_regs_va + offsetof(struct rpi_ts_regs, num_points)); in rpi_ts_poll()
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H A Dpcap_ts.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Driver for Motorola PCAP2 touchscreen as found in the EZX phone platform.
18 #include <linux/mfd/ezx-pcap.h>
42 switch (pcap_ts->read_state) { in pcap_ts_read_xy()
46 pcap_ts->pressure = res[0]; in pcap_ts_read_xy()
47 pcap_ts->read_state = PCAP_ADC_TS_M_XY; in pcap_ts_read_xy()
48 schedule_delayed_work(&pcap_ts->work, 0); in pcap_ts_read_xy()
51 pcap_ts->y = res[0]; in pcap_ts_read_xy()
52 pcap_ts->x = res[1]; in pcap_ts_read_xy()
53 if (pcap_ts->x <= X_AXIS_MIN || pcap_ts->x >= X_AXIS_MAX || in pcap_ts_read_xy()
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H A Dtsc200x-core.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * TSC2004/TSC2005 touchscreen driver core
5 * Copyright (C) 2006-2010 Nokia Corporation
16 #include <linux/input/touchscreen.h>
24 #include "tsc200x-core.h"
27 * The touchscreen interface operates as follows:
29 * 1) Pen is pressed against the touchscreen.
38 * during the last 40ms which means the pen has been lifted.
118 touchscreen_report_pos(ts->idev, &ts->prop, x, y, false); in tsc200x_update_pen_state()
119 input_report_abs(ts->idev, ABS_PRESSURE, pressure); in tsc200x_update_pen_state()
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/linux/arch/arm64/boot/dts/rockchip/
H A Drk3399-gru-bob.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Google Gru-Bob Rev 4+ board device tree source
8 /dts-v1/;
9 #include "rk3399-gru-chromebook.dtsi"
13 compatible = "google,bob-rev13", "google,bob-rev12",
14 "google,bob-rev11", "google,bob-rev10",
15 "google,bob-rev9", "google,bob-rev8",
16 "google,bob-rev7", "google,bob-rev6",
17 "google,bob-rev5", "google,bob-rev4",
19 chassis-type = "convertible";
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/linux/sound/soc/intel/boards/
H A Dbytcht_es8316.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * bytcht_es8316.c - ASoc Machine driver for Intel Baytrail/Cherrytrail
7 * Authors: David Yang <yangxiaohua@everest-semi.com>,
29 #include <sound/soc-acpi.h>
30 #include "../../codecs/es83xx-dsm-common.h"
31 #include "../atom/sst-atom-controls.h"
32 #include "../common/soc-intel-quirks.h"
34 /* jd-inv + terminating entry */
57 static int quirk_override = -1;
59 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
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/linux/arch/arm/boot/dts/allwinner/
H A Dsun8i-reference-design-tablet.dtsi4 * This file is dual-licensed: you can use it either under the terms
42 #include "sunxi-reference-design-tablet.dtsi"
44 #include <dt-bindings/pwm/pwm.h>
52 compatible = "pwm-backlight";
54 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
55 default-brightness-level = <8>;
56 enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
57 power-supply = <&reg_dc1sw>;
61 stdout-path = "serial0:115200n8";
68 * 100KHz, this has been confirmed on multiple different q8 tablets.
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/linux/arch/arm/mach-omap1/
H A Dboard-nokia770.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * linux/arch/arm/mach-omap1/board-nokia770.c
5 * Modified from board-generic.c
24 #include <linux/platform_data/keypad-omap.h>
25 #include <linux/platform_data/lcd-mipid.h>
26 #include <linux/platform_data/gpio-omap.h>
28 #include <asm/mach-types.h>
44 .name = "gpio-0-15",
48 .name = "gpio-16-31",
95 .name = "omap-keypad",
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mm-var-som.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
10 model = "Variscite VAR-SOM-MX8MM module";
13 stdout-path = &uart4;
21 reg_eth_phy: regulator-eth-phy {
22 compatible = "regulator-fixed";
23 pinctrl-names = "default";
24 pinctrl-0 = <&pinctrl_reg_eth_phy>;
25 regulator-name = "eth_phy_pwr";
26 regulator-min-microvolt = <3300000>;
27 regulator-max-microvolt = <3300000>;
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