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/Linux-v5.10/Documentation/devicetree/bindings/leds/
Dleds-bcm6358.txt5 which can either be controlled by software (exporting the 74x164 as spi-gpio.
6 See Documentation/devicetree/bindings/gpio/gpio-74x164.txt), or
10 - compatible : should be "brcm,bcm6358-leds".
11 - #address-cells : must be 1.
12 - #size-cells : must be 0.
13 - reg : BCM6358 LED controller address and size.
16 - brcm,clk-div : SCK signal divider. Possible values are 1, 2, 4 and 8.
18 - brcm,clk-dat-low : Boolean, makes clock and data signals active low.
21 Each LED is represented as a sub-node of the brcm,bcm6358-leds device.
23 LED sub-node required properties:
[all …]
Dleds-bcm6328.txt7 as spi-gpio. See Documentation/devicetree/bindings/gpio/gpio-74x164.txt), or
10 exporting the 74x164 as spi-gpio prevents those LEDs to be hardware
18 explained later in brcm,link-signal-sources). Even if a LED is hardware
24 - compatible : should be "brcm,bcm6328-leds".
25 - #address-cells : must be 1.
26 - #size-cells : must be 0.
27 - reg : BCM6328 LED controller address and size.
30 - brcm,serial-leds : Boolean, enables Serial LEDs.
32 - brcm,serial-mux : Boolean, enables Serial LEDs multiplexing.
34 - brcm,serial-clk-low : Boolean, makes clock signal active low.
[all …]
/Linux-v5.10/Documentation/driver-api/gpio/
Dintro.rst16 - The descriptor-based interface is the preferred way to manipulate GPIOs,
17 and is described by all the files in this directory excepted gpio-legacy.txt.
18 - The legacy integer-based interface which is considered deprecated (but still
19 usable for compatibility reasons) is documented in gpio-legacy.txt.
21 The remainder of this document applies to the new descriptor-based interface.
22 gpio-legacy.txt contains the same information applied to the legacy
23 integer-based interface.
29 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
37 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
38 non-dedicated pin can be configured as a GPIO; and most chips have at least
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/power/supply/
Dmax8903-charger.txt4 - compatible: "maxim,max8903" for MAX8903 Battery Charger
5 - dok-gpios: Valid DC power has been detected (active low, input), optional if uok-gpios is provided
6 - uok-gpios: Valid USB power has been detected (active low, input), optional if dok-gpios is provid…
9 - cen-gpios: Charge enable pin (active low, output)
10 - chg-gpios: Charger status pin (active low, input)
11 - flt-gpios: Fault pin (active low, output)
12 - dcm-gpios: Current limit mode setting (DC=1 or USB=0, output)
13 - usus-gpios: USB suspend pin (active high, output)
18 max8903-charger {
20 dok-gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
[all …]
/Linux-v5.10/arch/mips/boot/dts/brcm/
Dbcm63268-comtrend-vr-3032u.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
7 compatible = "comtrend,vr-3032u", "brcm,bcm63268";
8 model = "Comtrend VR-3032u";
17 stdout-path = &uart0;
23 brcm,serial-leds;
24 brcm,serial-dat-low;
25 brcm,serial-shift-inv;
29 brcm,hardware-controlled;
30 brcm,link-signal-sources = <0>;
[all …]
Dbcm6358-neufbox4-sercomm.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
7 compatible = "sfr,nb4-ser", "brcm,bcm6358";
17 stdout-path = &uart0;
26 active-low;
27 label = "nb4-ser:white:alarm";
31 active-low;
32 label = "nb4-ser:white:tv";
36 active-low;
37 label = "nb4-ser:white:tel";
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/net/
Dmdio-mux-gpio.txt8 - compatible : mdio-mux-gpio.
9 - gpios : GPIO specifiers for each GPIO line. One or more must be specified.
16 compatible = "cavium,octeon-3860-mdio";
17 #address-cells = <1>;
18 #size-cells = <0>;
23 An NXP sn74cbtlv3253 dual 1-of-4 switch controlled by a
27 mdio-mux {
28 compatible = "mdio-mux-gpio";
30 mdio-parent-bus = <&smi1>;
31 #address-cells = <1>;
[all …]
Dmdio-mux.txt8 - #address-cells = <1>;
9 - #size-cells = <0>;
12 - mdio-parent-bus : phandle to the parent MDIO bus.
14 - Other properties specific to the multiplexer/switch hardware.
17 - #address-cells = <1>;
18 - #size-cells = <0>;
19 - reg : The sub-bus number.
26 compatible = "cavium,octeon-3860-mdio";
27 #address-cells = <1>;
28 #size-cells = <0>;
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/sound/
Dtlv320adcx140.yaml1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Texas Instruments TLV320ADCX140 Quad Channel Analog-to-Digital Converter
11 - Dan Murphy <dmurphy@ti.com>
14 The TLV320ADCX140 are multichannel (4-ch analog recording or 8-ch digital
15 PDM microphones recording), high-performance audio, analog-to-digital
28 - const: ti,tlv320adc3140
29 - const: ti,tlv320adc5140
30 - const: ti,tlv320adc6140
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/media/i2c/
Dst,st-mipid02.txt1 STMicroelectronics MIPID02 CSI-2 to PARALLEL bridge
3 MIPID02 has two CSI-2 input ports, only one of those ports can be active at a
4 time. Active port input stream will be de-serialized and its content outputted
6 CSI-2 first input port is a dual lane 800Mbps per lane whereas CSI-2 second
11 YUV420 8-bit, YUV422 8-bit and YUV420 10-bit.
14 - compatible: shall be "st,st-mipid02"
15 - clocks: reference to the xclk input clock.
16 - clock-names: shall be "xclk".
17 - VDDE-supply: sensor digital IO supply. Must be 1.8 volts.
18 - VDDIN-supply: sensor internal regulator supply. Must be 1.8 volts.
[all …]
Dov7670.txt8 - compatible: should be "ovti,ov7670"
9 - clocks: reference to the xclk input clock.
10 - clock-names: should be "xclk".
13 - hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
14 - vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
17 - reset-gpios: reference to the GPIO connected to the resetb pin, if any.
18 Active is low.
19 - powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any.
20 Active is high.
21 - ov7670,pclk-hb-disable: a boolean property to suppress pixel clock output
[all …]
Dtvp7002.txt7 - compatible : Must be "ti,tvp7002"
10 - hsync-active: HSYNC Polarity configuration for the bus. Default value when
13 - vsync-active: VSYNC Polarity configuration for the bus. Default value when
16 - pclk-sample: Clock polarity of the bus. Default value when this property is
19 - sync-on-green-active: Active state of Sync-on-green signal property of the
21 0 = Normal Operation (Active Low, Default)
24 - field-even-active: Active-high Field ID output polarity control of the bus.
27 0 = Normal Operation (Active Low, Default)
31 video-interfaces.txt.
44 hsync-active = <1>;
[all …]
Daptina,mt9v111.txt2 ----------------------------
4 The Aptina MT9V111 is a 1/4-Inch VGA-format digital image sensor with a core
7 The sensor has an active pixel array of 640x480 pixels and can output a number
8 of image resolution and formats controllable through a simple two-wires
12 --------------------
14 - compatible: shall be "aptina,mt9v111".
15 - clocks: reference to the system clock input provider.
18 --------------------
20 - enable-gpios: output enable signal, pin name "OE#". Active low.
21 - standby-gpios: low power state control signal, pin name "STANDBY".
[all …]
Dov5640.txt1 * Omnivision OV5640 MIPI CSI-2 / parallel sensor
4 - compatible: should be "ovti,ov5640"
5 - clocks: reference to the xclk input clock.
6 - clock-names: should be "xclk".
7 - DOVDD-supply: Digital I/O voltage supply, 1.8 volts
8 - AVDD-supply: Analog voltage supply, 2.8 volts
9 - DVDD-supply: Digital core voltage supply, 1.5 volts
12 - reset-gpios: reference to the GPIO connected to the reset pin, if any.
13 This is an active low signal to the OV5640.
14 - powerdown-gpios: reference to the GPIO connected to the powerdown pin,
[all …]
/Linux-v5.10/arch/arm/boot/dts/
Dqcom-mdm9615-wp8548-mangoh-green.dts7 * This file is dual-licensed: you can use it either under the terms
46 #include <dt-bindings/input/input.h>
48 #include "qcom-mdm9615-wp8548.dtsi"
49 #include <dt-bindings/interrupt-controller/irq.h>
50 #include <dt-bindings/gpio/gpio.h>
54 compatible = "swir,mangoh-green-wp8548", "swir,wp8548", "qcom,mdm9615";
65 stdout-path = "serial1:115200n8";
71 * - 2 : GPIOEXP_INT2
72 * - 7 : IOT1_GPIO2
73 * - 8 : IOT0_GPIO4
[all …]
Ddove-cm-a510.dtsi2 * Device Tree include for Compulab CM-A510 System-on-Module
6 * This file is dual-licensed: you can use it either under the terms
46 * The CM-A510 comes with several optional components:
66 * U2: 2 dual-role USB2.0 ports
70 * W: Broadcom BCM4319 802.11b/g/n (USI WM-N-BM-01 on SDIO1)
72 * GPIOs used on CM-A510:
73 * 1 GbE PHY reset (active low)
75 * 8 PowerOff (active low)
76 * 13 Touchscreen pen irq (active low)
77 * 65 System LED (active high)
[all …]
/Linux-v5.10/include/linux/
Dlp.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 * usr/include/linux/lp.h c.1991-1992 James Wiegand
16 /* Magic numbers for defining port-device mappings */
17 #define LP_PARPORT_UNSPEC -4
18 #define LP_PARPORT_AUTO -3
19 #define LP_PARPORT_OFF -2
20 #define LP_PARPORT_NONE -1
26 #define LP_IRQ(minor) lp_table[(minor)].dev->port->irq /* interrupt # */
33 #define LP_BASE(x) lp_table[(x)].dev->port->base
71 * signals are active low. An example is LP_STROBE, which must be programmed
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/power/reset/
Dgpio-poweroff.txt9 When the power-off handler is called, the gpio is configured as an
10 output, and drive active, so triggering a level triggered power off
11 condition. This will also cause an inactive->active edge condition, so
13 the GPIO is set to inactive, thus causing an active->inactive edge,
15 delay the GPIO is driver active again. If the power is still on and
19 - compatible : should be "gpio-poweroff".
20 - gpios : The GPIO to set high/low, see "gpios property" in
22 low to power down the board set it to "Active Low", otherwise set
23 gpio to "Active High".
26 - input : Initially configure the GPIO line as an input. Only reconfigure
[all …]
Dgpio-restart.txt6 handler. If the optional properties 'open-source' is not found, the GPIO line
11 priority order. The gpio is configured as an output, and driven active,
13 inactive->active edge condition, triggering positive edge triggered
14 reset. After a delay specified by active-delay, the GPIO is set to
15 inactive, thus causing an active->inactive edge, triggering negative edge
16 triggered reset. After a delay specified by inactive-delay, the GPIO
17 is driven active again. After a delay specified by wait-delay, the
21 - compatible : should be "gpio-restart".
22 - gpios : The GPIO to set high/low, see "gpios property" in
24 low to reset the board set it to "Active Low", otherwise set
[all …]
/Linux-v5.10/include/linux/mfd/
Ddm355evm_msp.h2 * dm355evm_msp.h - support MSP430 microcontroller on DM355EVM board
43 #define DM355EVM_MSP_LED 0x03 /* active low (MSP P4) */
50 # define MSP_SWITCH1_MSP_INT BIT(5) /* active low */
59 # define MSP_SDMMC_0_CD BIT(2) /* active low */
61 # define MSP_SDMMC_1_CD BIT(4) /* active low */
64 # define MSP_VIDEO_IMAGER BIT(7) /* low == tvp5146 */
74 /* input event queue registers; code == ((HIGH << 8) | LOW) */
75 #define DM355EVM_MSP_INPUT_COUNT 0x16 /* decrement by reading LOW */
/Linux-v5.10/Documentation/hwmon/
Dds620.rst20 -----------
23 high and low temperature limits which can be user defined (i.e. programmed
24 into non-volatile on-chip registers). Temperature range is -55 degree Celsius
30 PO is always low. If .pomode == 1, the thermostat is in PO_LOW mode. I.e., the
31 output pin PO becomes active when the temperature falls below temp1_min and
32 stays active until the temperature goes above temp1_max.
35 output pin becomes active when the temperature goes above temp1_max and stays
36 active until the temperature falls below temp1_min.
38 The PO output pin of the DS620 operates active-low.
/Linux-v5.10/drivers/watchdog/
Dwd501p.h1 /* SPDX-License-Identifier: GPL-1.0+ */
39 #define WDC_SR_WCCR 1 /* Active low */ /* X X X */
40 #define WDC_SR_TGOOD 2 /* X X - */
43 #define WDC_SR_FANGOOD 16 /* X - - */
44 #define WDC_SR_PSUOVER 32 /* Active low */ /* X X - */
45 #define WDC_SR_PSUUNDR 64 /* Active low */ /* X X - */
46 #define WDC_SR_IRQ 128 /* Active low */ /* X X X */
/Linux-v5.10/Documentation/firmware-guide/acpi/
Dgpio-properties.rst1 .. SPDX-License-Identifier: GPL-2.0
31 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
34 Package () {"reset-gpios", Package() {^BTH, 1, 1, 0 }},
35 Package () {"shutdown-gpios", Package() {^BTH, 0, 0, 0 }},
55 active low or high, the "active_low" argument can be used here. Setting
56 it to 1 marks the GPIO as active low.
61 In our Bluetooth example the "reset-gpios" refers to the second GpioIo()
74 Explicit x (no _DSD) as Pull Bias (Up == High, Down == Low),
75 assuming non-active (Polarity = !Pull Bias)
76 Down Low as low, assuming active
[all …]
/Linux-v5.10/drivers/media/dvb-frontends/
Dm88ds3103.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
19 * enum m88ds3103_ts_mode - TS connection mode
47 * struct m88ds3103_platform_data - Platform data for the m88ds3103 driver
52 * @ts_clk_pol: TS clk polarity. 1-active at falling edge; 0-active at rising
59 * @lnb_hv_pol: LNB H/V pin polarity. 0: pin high set to VOLTAGE_18, pin low to
60 * set VOLTAGE_13. 1: pin high set to VOLTAGE_13, pin low to set VOLTAGE_18.
61 * @lnb_en_pol: LNB enable pin polarity. 0: pin high to disable, pin low to
62 * enable. 1: pin high to enable, pin low to disable.
88 * struct m88ds3103_config - m88ds3102 configuration
98 * 1-active at falling edge; 0-active at rising edge.
[all …]
/Linux-v5.10/Documentation/devicetree/bindings/gpio/
Dbrcm,brcmstb-gpio.txt3 The controller's registers are organized as sets of eight 32-bit
9 - compatible:
10 Must be "brcm,brcmstb-gpio"
12 - reg:
16 - #gpio-cells:
19 bit[0]: polarity (0 for active-high, 1 for active-low)
21 - gpio-controller:
24 - brcm,gpio-bank-widths:
30 - interrupts:
33 - interrupts-extended:
[all …]

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