Searched +full:mbl +full:- +full:gpio (Results 1 – 4 of 4) sorted by relevance
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/gpio/ |
| D | wd,mbl-gpio.txt | 1 Bindings for the Western Digital's MyBook Live memory-mapped GPIO controllers.
3 The Western Digital MyBook Live has two memory-mapped GPIO controllers.
4 Both GPIO controller only have a single 8-bit data register, where GPIO
8 - compatible: should be "wd,mbl-gpio"
9 - reg-names: must contain
10 "dat" - data register
11 - reg: address + size pairs describing the GPIO register sets;
12 order must correspond with the order of entries in reg-names
13 - #gpio-cells: must be set to 2. The first cell is the pin number and
14 the second cell is used to specify the gpio polarity:
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/gpio/ |
| D | gpio-mmio.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/gpio/gpio-mmio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Generic MMIO GPIO
10 - Linus Walleij <linus.walleij@linaro.org>
11 - Bartosz Golaszewski <brgl@bgdev.pl>
14 Some simple GPIO controllers may consist of a single data register or a pair
15 of set/clear-bit registers. Such controllers are common for glue logic in
16 FPGAs or ASICs. Commonly, these controllers are accessed over memory-mapped
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| /kernel/linux/linux-5.10/drivers/gpio/ |
| D | gpio-mmio.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Generic driver for memory-mapped GPIO controllers.
10 * ..The simplest form of a GPIO controller that the driver supports is``
11 * `.just a single "data" register, where GPIO state can be read and/or `
16 __________|~$@~~~ %~ /o*o*o*o*o*o\ .. Implementing such a GPIO .
22 * . big-endian notation, just`. .. A bit more sophisticated controllers ,
23 * . register the device with -be`. .with a pair of set/clear-bit registers ,
29 * .. The expectation is that in at least some cases . ,-~~~-,
30 * .this will be used with roll-your-own ASIC/FPGA .` \ /
55 #include <linux/gpio/driver.h>
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| /kernel/linux/linux-6.6/drivers/gpio/ |
| D | gpio-mmio.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Generic driver for memory-mapped GPIO controllers.
10 * ..The simplest form of a GPIO controller that the driver supports is``
11 * `.just a single "data" register, where GPIO state can be read and/or `
16 __________|~$@~~~ %~ /o*o*o*o*o*o\ .. Implementing such a GPIO .
22 * . big-endian notation, just`. .. A bit more sophisticated controllers ,
23 * . register the device with -be`. .with a pair of set/clear-bit registers ,
29 * .. The expectation is that in at least some cases . ,-~~~-,
30 * .this will be used with roll-your-own ASIC/FPGA .` \ /
55 #include <linux/gpio/driver.h>
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