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/Linux-v6.6/Documentation/devicetree/bindings/spi/
Dspi-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/spi/spi-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: SPI-GPIO
10 - Rob Herring <robh@kernel.org>
13 This represents a group of 3-n GPIO lines used for bit-banged SPI on
17 - $ref: /schemas/spi/spi-controller.yaml#
21 const: spi-gpio
23 sck-gpios:
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/Linux-v6.6/drivers/misc/eeprom/
Ddigsy_mtc_eeprom.c1 // SPDX-License-Identifier: GPL-2.0-only
8 * FIXME: this driver is used on a device-tree probed platform: it
9 * should be defined as a bit-banged SPI device and probed from the device
/Linux-v6.6/arch/arm/boot/dts/st/
Dste-ux500-samsung-janice.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy S Advance GT-I9070 also known as Janice.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8500.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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Dste-ux500-samsung-gavini.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Beam GT-I8530 also known as Gavini.
6 /dts-v1/;
7 #include "ste-db8500.dtsi"
8 #include "ste-ab8500.dtsi"
9 #include "ste-dbx5x0-pinctrl.dtsi"
10 #include <dt-bindings/gpio/gpio.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/input/input.h>
13 #include <dt-bindings/interrupt-controller/irq.h>
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Dste-ux500-samsung-codina-tmo.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Exhibit SGH-T599 also known as Codina-TMO,
4 * the "TMO" shall be read "T-Mobile" as this phone was produced exlusively
5 * for T-Mobile in the United States.
8 * - No CPU speed cap, full ~1GHz rate
9 * - Different power management IC, AB8505
10 * - As AB8505 has a micro USB phy, no TI TSU6111
11 * - Different power routing such as the removal of the external LDO for the
13 * - Using a regulator for the key backlight LED
14 * - Using the Samsung S6D27A1 panel by default
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Dste-ux500-samsung-codina.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * Devicetree for the Samsung Galaxy Ace 2 GT-I8160 also known as Codina.
11 * The Samsung tree further talks about GT-I8160P and GT-I8160chn (China).
12 * The GT-I8160 plain is known as the "europe" variant.
13 * The GT-I8160P is the CDMA version and it appears to not use the ST
15 * The GT-I8160chn appears to be the same as the europe variant.
17 * There is also the Codina-TMO, Samsung SGH-T599, which has its own device
21 /dts-v1/;
22 #include "ste-db8500.dtsi"
23 #include "ste-ab8500.dtsi"
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/Linux-v6.6/drivers/bus/
Dts-nbus.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * NBUS driver for TS-4600 based boards
5 * Copyright (c) 2016 - Savoir-faire Linux
8 * This driver implements a GPIOs bit-banged bus, called the NBUS by Technologic
10 * TS-4600 SoM.
21 #include <linux/ts-nbus.h>
45 ts_nbus->data = devm_gpiod_get_array(&pdev->dev, "ts,data", in ts_nbus_init_pdata()
47 if (IS_ERR(ts_nbus->data)) { in ts_nbus_init_pdata()
48 dev_err(&pdev->dev, "failed to retrieve ts,data-gpio from dts\n"); in ts_nbus_init_pdata()
49 return PTR_ERR(ts_nbus->data); in ts_nbus_init_pdata()
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/Linux-v6.6/Documentation/devicetree/bindings/net/dsa/
Drealtek.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - $ref: dsa.yaml#/$defs/ethernet-ports
13 - Linus Walleij <linus.walleij@linaro.org>
20 The SMI "Simple Management Interface" is a two-wire protocol using
21 bit-banged GPIO that while it reuses the MDIO lines MCK and MDIO does
23 SMI-based Realtek devices. The realtek-smi driver is a platform driver
26 The MDIO-connected switches use MDIO protocol to access their registers.
27 The realtek-mdio driver is an MDIO driver and it must be inserted inside
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/Linux-v6.6/Documentation/devicetree/bindings/gpio/
Dgpio.txt5 -----------------
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
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.
48 include/dt-bindings/gpio/gpio.h whenever possible:
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/Linux-v6.6/drivers/spi/
Dspi-gpio.c1 // SPDX-License-Identifier: GPL-2.0-or-later
25 * platform_device->driver_data ... points to spi_gpio
27 * spi->controller_state ... reserved for bitbang framework code
29 * spi->controller->dev.driver_data ... points to spi_gpio->bitbang
40 /*----------------------------------------------------------------------*/
44 * per transferred bit can make performance a problem, this code
47 * - The slow generic way: set up platform_data to hold the GPIO
51 * - The quicker inlined way: only helps with platform GPIO code
62 * #include "spi-gpio.c"
72 /*----------------------------------------------------------------------*/
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/Linux-v6.6/arch/arm/boot/dts/gemini/
Dgemini-dlink-dir-685.dts2 * Device Tree file for D-Link DIR-685 Xtreme N Storage Router
5 /dts-v1/;
8 #include <dt-bindings/input/input.h>
11 model = "D-Link DIR-685 Xtreme N Storage Router";
12 compatible = "dlink,dir-685", "cortina,gemini";
13 #address-cells = <1>;
14 #size-cells = <1>;
17 /* 128 MB SDRAM in 2 x Hynix HY5DU121622DTP-D43 */
24 stdout-path = "uart0:19200n8";
28 compatible = "gpio-keys";
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/Linux-v6.6/drivers/net/ethernet/smsc/
Dsmc9194.c1 /*------------------------------------------------------------------------
33 . 01/03/96 Erik Stahlman worked out some bugs, actually usable!!! :-)
37 . 2. got rid of post-decrementing bug -- UGH.
55 ----------------------------------------------------------------------------*/
82 /*------------------------------------------------------------------------
86 -------------------------------------------------------------------------*/
89 . Do you want to use 32 bit xfers? This should work on all chips, as
165 /*------------------------------------------------------------------------
171 -------------------------------------------------------------------------*/
193 /*-----------------------------------------------------------------
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Dsmc91x.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * This is a driver for SMSC's 91C9x/91C1xx single-chip Ethernet devices.
37 * 29/09/03 Russell King - add driver model support
38 * - ethtool support
39 * - convert to use generic MII interface
40 * - add link up/down notification
41 * - don't try to handle full negotiation in
43 * - clean up (and fix stack overrun) in PHY
112 * Use power-down feature of the chip
197 spin_lock_irqsave(&lp->lock, smc_enable_flags); \
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