| /linux/include/linux/ |
| H A D | pwm.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
17 * enum pwm_polarity - polarity of a PWM signal
18 * @PWM_POLARITY_NORMAL: a high signal for the duration of the duty-
21 * @PWM_POLARITY_INVERSED: a low signal for the duration of the duty-
31 * struct pwm_args - board-dependent PWM arguments
33 * @polarity: reference polarity
35 * This structure describes board-dependent arguments attached to a PWM
45 enum pwm_polarity polarity; member
54 * struct pwm_waveform - description of a PWM waveform
61 * duty_offset_ns and so can represent offsets other than zero (with .polarity =
[all …]
|
| /linux/Documentation/driver-api/ |
| H A D | pwm.rst | 15 ----------------
24 PWM_LOOKUP("tegra-pwm", 0, "pwm-backlight", NULL,
36 ----------
65 If supported by the driver, the signal can be optimized, for example to improve
82 PWM arguments are usually platform-specific and allows the PWM user to only
84 period). struct pwm_args contains 2 fields (period and polarity) and should
93 -----------------------------------
102 The number of PWM channels this chip supports (read-only).
105 Exports a PWM channel for use with sysfs (write-only).
108 Unexports a PWM channel from sysfs (write-only).
[all …]
|
| /linux/drivers/hwmon/ |
| H A D | ds1621.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * ds1621.c - Part of lm_sensors, Linux kernel modules for hardware
5 * Christian W. Zuckschwerdt <zany@triq.net> 2000-11-23
10 * The DS1621 device is a digital temperature/thermometer with 9-bit
11 * resolution, a thermal alarm output (Tout), and user-defined minimum
19 * Since the DS1621 was the first chipset supported by this driver,
21 * and concern all supported chipsets, unless mentioned otherwise.
30 #include <linux/hwmon-sysfs.h>
36 /* Supported devices */
40 static int polarity = -1; variable
[all …]
|
| /linux/include/media/i2c/ |
| H A D | tvp514x.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
13 * Karicheri Muralidharan <m-karicheri2@ti.com>
48 * S-Video input selection
69 /* enum for output format supported. */
78 * struct tvp514x_platform_data - Platform data values and access functions.
79 * @clk_polarity: Clock polarity of the current interface.
80 * @hs_polarity: HSYNC Polarity configuration for current interface.
81 * @vs_polarity: VSYNC Polarity configuration for current interface.
|
| /linux/arch/mips/include/asm/mach-au1x00/ |
| H A D | au1550_spi.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * au1550_spi.h - Au1550 PSC SPI controller driver - platform data structure
11 u16 num_chipselect; /* number of chipselects supported */
12 void (*activate_cs)(struct au1550_spi_info *spi, int cs, int polarity);
13 void (*deactivate_cs)(struct au1550_spi_info *spi, int cs, int polarity);
|
| /linux/drivers/irqchip/ |
| H A D | irq-ftintc010.c | 1 // SPDX-License-Identifier: GPL-2.0
6 * Based on arch/arm/mach-gemini/irq.c
7 * Copyright (C) 2001-2006 Storlink, Corp.
8 * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@gmail.com>
29 /* Selects level- or edge-triggered */
42 * struct ft010_irq_data - irq data container for the Faraday IRQ controller
58 mask = readl(FT010_IRQ_MASK(f->base)); in ft010_irq_mask()
60 writel(mask, FT010_IRQ_MASK(f->base)); in ft010_irq_mask()
68 mask = readl(FT010_IRQ_MASK(f->base)); in ft010_irq_unmask()
70 writel(mask, FT010_IRQ_MASK(f->base)); in ft010_irq_unmask()
[all …]
|
| /linux/Documentation/devicetree/bindings/net/pse-pd/ |
| H A D | ti,tps23881.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/pse-pd/ti,tps23881.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kory Maincent <kory.maincent@bootlin.com>
13 - $ref: pse-controller.yaml#
18 - ti,tps23881
26 '#pse-cells':
29 reset-gpios:
37 their pairsets. For 4-pair operation, two channels from the same group
[all …]
|
| H A D | microchip,pd692x0.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/pse-pd/microchip,pd692x0.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Kory Maincent <kory.maincent@bootlin.com>
13 - $ref: pse-controller.yaml#
18 - microchip,pd69200
19 - microchip,pd69210
20 - microchip,pd69220
25 vdd-supply:
[all …]
|
| H A D | pse-controller.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/pse-pd/pse-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 power over twisted pair/ethernet cable. The ethernet-pse nodes should be
12 used to describe PSE controller and referenced by the ethernet-phy node.
15 - Oleksij Rempel <o.rempel@pengutronix.de>
16 - Kory Maincent <kory.maincent@bootlin.com>
20 pattern: "^ethernet-pse(@.*|-([0-9]|[1-9][0-9]+))?$"
22 "#pse-cells":
[all …]
|
| /linux/Documentation/devicetree/bindings/media/i2c/ |
| H A D | st,st-vgxy61.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/media/i2c/st,st-vgxy61.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Benjamin Mugnier <benjamin.mugnier@foss.st.com>
12 - Sylvain Petinot <sylvain.petinot@foss.st.com>
14 description: |-
15 STMicroelectronics VGxy61 family has a CSI-2 output port. CSI-2 output is a
17 Supported formats are RAW8, RAW10, RAW12, RAW14 and RAW16.
18 Following part number are supported
[all …]
|
| /linux/Documentation/devicetree/bindings/hwmon/ |
| H A D | adi,ltc2947.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Nuno Sá <nuno.sa@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/LTC2947.pdf
20 - adi,ltc2947
33 adi,accumulator-ctl-pol:
35 This property controls the polarity of current that is accumulated to
40 datasheet for more information on the supported options.
41 $ref: /schemas/types.yaml#/definitions/uint32-array
[all …]
|
| /linux/drivers/net/phy/qcom/ |
| H A D | qca808x.c | 1 // SPDX-License-Identifier: GPL-2.0+
70 #define QCA808X_MMD7_LED_CTRL(x) (0x8078 - ((x) * 2))
73 #define QCA808X_MMD7_LED_FORCE_CTRL(x) (0x8079 - ((x) * 2))
151 return (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_FORCE) || in qca808x_is_prefer_master()
152 (phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_PREFERRED); in qca808x_is_prefer_master()
157 return linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported); in qca808x_has_fast_retrain_or_slave_seed()
173 unsigned long *possible = phydev->possible_interfaces; in qca808x_fill_possible_interfaces()
183 struct device *dev = &phydev->mdio.dev; in qca808x_probe()
188 return -ENOMEM; in qca808x_probe()
190 /* Init LED polarity mode to -1 */ in qca808x_probe()
[all …]
|
| /linux/Documentation/userspace-api/media/v4l/ |
| H A D | vidioc-g-dv-timings.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_DV_TIMINGS - VIDIOC_S_DV_TIMINGS - VIDIOC_SUBDEV_G_DV_TIMINGS - VIDIOC_SUBDEV_S_DV_TIMINGS…
52 structure as argument. If the ioctl is not supported or the timing
56 registered in read-only mode is not allowed. An error is returned and the errno
57 variable is set to ``-EPERM``.
59 The ``linux/v4l2-dv-timings.h`` header can be used to get the timings of
68 On success 0 is returned, on error -1 and the ``errno`` variable is set
70 :ref:`Generic Error Codes <gen-errors>` chapter.
73 This ioctl is not supported, or the :ref:`VIDIOC_S_DV_TIMINGS <VIDIOC_G_DV_TIMINGS>`
77 Digital video timings are not supported for this input or output.
[all …]
|
| /linux/arch/sh/include/asm/ |
| H A D | sh7760fb.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
5 * (c) 2006-2008 MSC Vertriebsges.m.b.H.,
19 /* The LCDC dma engine always sets bits 27-26 to 1: this is Area3 */
75 /* HSYNC polarity inversion */
78 /* VSYNC polarity inversion */
81 /* DISPLAY-ENABLE polarity inversion */
84 /* DISPLAY DATA BUS polarity inversion */
96 /* Display types supported by the LCDC */
144 /* LDMTR includes display type and signal polarity. The
[all …]
|
| /linux/Documentation/firmware-guide/acpi/ |
| H A D | gpio-properties.rst | 1 .. 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 } },
40 The format of the supported GPIO property is::
52 If 1, the GPIO is marked as active-low.
55 active-low or active-high, the "active_low" argument can be used here.
56 Setting it to 1 marks the GPIO as active-low.
61 In our Bluetooth example the "reset-gpios" refers to the second GpioIo()
68 and polarity settings. The table below shows the expectations:
[all …]
|
| /linux/Documentation/fb/ |
| H A D | pxafb.rst | 10 modprobe pxafb options=vmem:2M,mode:640x480-8,passive
14 video=pxafb:vmem:2M,mode:640x480-8,passive
21 mode:XRESxYRES[-BPP]
74 outputen:POLARITY
76 Output Enable Polarity. 0 => active low, 1 => active high
78 pixclockpol:POLARITY
80 pixel clock polarity
87 PXA27x and later processors support overlay1 and overlay2 on-top of the
88 base framebuffer (although under-neath the base is also possible). They
89 support palette and no-palette RGB formats, as well as YUV formats (only
[all …]
|
| /linux/Documentation/hwmon/ |
| H A D | ds1621.rst | 4 Supported chips:
47 - Christian W. Zuckschwerdt <zany@triq.net>
48 - valuable contributions by Jan M. Sendler <sendler@sendler.de>
49 - ported to 2.6 by Aurelien Jarno <aurelien@aurel32.net>
53 ------------------
55 * polarity int
56 Output's polarity:
62 -----------
66 programmed into non-volatile on-chip registers). Temperature range is -55
68 Fahrenheit range of -67 to +257 degrees with 0.9 steps. If polarity
[all …]
|
| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-class-pwm | 6 The pwm/ class sub-directory belongs to the Generic PWM
24 The number of PWM channels supported by the PWM chip.
32 Value is between 0 and /sys/class/pwm/pwmchipN/npwm - 1.
64 What: /sys/class/pwm/pwmchip<N>/pwmX/polarity
69 Sets the output polarity of the PWM signal to "normal" or
|
| /linux/include/linux/platform_data/ |
| H A D | dma-dw.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
6 * Copyright (C) 2010-2011 ST Microelectronics
22 * struct dw_dma_slave - Controller-specific information about a slave
30 * @hs_polarity:set active low polarity of handshake interface
43 * struct dw_dma_platform_data - Controller configuration parameters
44 * @nr_masters: Number of AHB masters supported by the controller
45 * @nr_channels: Number of channels supported by hardware (max 8)
48 * @block_size: Maximum block size supported by the controller
49 * @data_width: Maximum data width supported by hardware per AHB master
51 * @multi_block: Multi block transfers supported by hardware per channel.
[all …]
|
| H A D | video-pxafb.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * Author: Jean-Frederic Clere
13 * Supported LCD connections
15 * bits 0 - 3: for LCD panel type:
17 * STN - for passive matrix
18 * DSTN - for dual scan passive matrix
19 * TFT - fo
[all...] |
| /linux/Documentation/devicetree/bindings/gpio/ |
| H A D | gpio.txt | 5 -----------------
7 GPIO properties should be named "[<name>-]gpios", with <name> being the purpose
8 of this GPIO for the device. While a non-existent <name> is considered valid
10 for new bindings. Also, GPIO properties named "[<name>-]gpio" are valid and old
11 bindings use it, but are only supported for compatibility reasons and should not
24 and bit-banged data signals:
27 gpio-controller;
28 #gpio-cells = <2>;
32 data-gpios = <&gpio1 12 0>,
44 recommended to use the two-cell approach.
[all …]
|
| /linux/Documentation/devicetree/bindings/pinctrl/ |
| H A D | brcm,iproc-gpio.txt | 5 - compatible:
6 "brcm,iproc-gpio" for the generic iProc based GPIO controller IP that
7 supports full-featured pinctrl and GPIO functions used in various iProc
10 May contain an SoC-specific compatibility string to accommodate any
11 SoC-specific features
13 "brcm,cygnus-ccm-gpio", "brcm,cygnus-asiu-gpio", or
14 "brcm,cygnus-crmu-gpio" for Cygnus SoCs
16 "brcm,iproc-nsp-gpio" for the iProc NSP SoC that has drive strength support
19 "brcm,iproc-stingray-gpio" for the iProc Stingray SoC that has the general
23 - reg:
[all …]
|
| /linux/Documentation/devicetree/bindings/sound/ |
| H A D | nuvoton,nau8825.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - John Hsu <KCHSU0@nuvoton.com>
13 - $ref: dai-common.yaml#
18 - nuvoton,nau8825
26 nuvoton,jkdet-enable:
31 nuvoton,jkdet-pull-enable:
34 If set - pin pull enabled, otherwise pin in high impedance state.
37 nuvoton,jkdet-pull-up:
[all …]
|
| /linux/Documentation/spi/ |
| H A D | spidev.rst | 5 SPI devices have a limited userspace API, supporting basic half-duplex
19 * Prototyping in an environment that's not crash-prone; stray pointers
33 The spidev driver contains lists of SPI devices that are supported for
36 The following are the SPI device tables supported by the spidev driver:
38 - struct spi_device_id spidev_spi_ids[]: list of devices that can be
42 - struct of_device_id spidev_dt_ids[]: list of devices that can be
46 - struct acpi_device_id spidev_acpi_ids[]: list of devices that can
52 post a patch for spidev to the linux-spi@vger.kernel.org mailing list.
54 It used to be supported to define an SPI device using the "spidev" name.
56 is no longer supported by the Linux kernel and instead a real SPI device
[all …]
|
| /linux/drivers/gpu/drm/gma500/ |
| H A D | oaktrail.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2007-2011, Intel Corporation.
78 /* Bit 0, Frequency, 15 bits,0 - 32767Hz */
79 /* Bit 15, Polarity, 1 bit, 0: Normal, 1: Inverted */
84 /* 0: Type-1, */
85 /* 1: Type-2, */
86 /* 2: Type-3, */
87 /* 3: Type-4 */
89 /* Bit0: 16bpp (not supported in LNC), */
94 /* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
[all …]
|