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/linux/Documentation/devicetree/bindings/gpio/
H A Dnxp,pcf8575.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PCF857x-compatible I/O expanders
10 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
13 The PCF857x-compatible chips have "quasi-bidirectional" I/O lines that can be
14 driven high by a pull-up current source or driven low to ground. This
25 - maxim,max7328
26 - maxim,max7329
27 - nxp,pca8574
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/linux/drivers/gpio/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
47 this symbol, but new drivers should use the generic gpio-regmap
57 non-sleeping contexts. They can make bitbanged serial protocols
126 Enables support for the idio-16 library functions. The idio-16 library
128 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
130 If built as a module its name will be gpio-idio-16.
136 tristate "GPIO driver for 74xx-ICs with MMIO access"
140 Say yes here to support GPIO functionality for 74xx-compatible ICs
155 If driver is built as a module it will be called gpio-altera.
316 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
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