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/linux-6.12.1/Documentation/devicetree/bindings/gpio/
Ddelta,tn48m-gpio.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/gpio/delta,tn48m-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Delta Networks TN48M CPLD GPIO controller
10 - Robert Marko <robert.marko@sartura.hr>
13 This module is part of the Delta TN48M multi-function device. For more
14 details see ../mfd/delta,tn48m-cpld.yaml.
16 Delta TN48M has an onboard Lattice CPLD that is used as an GPIO expander.
17 It provides 12 pins in total, they are input-only or ouput-only type.
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/linux-6.12.1/Documentation/devicetree/bindings/mfd/
Ddelta,tn48m-cpld.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Delta Networks TN48M CPLD controller
10 - Robert Marko <robert.marko@sartura.hr>
13 Lattice CPLD onboard the TN48M switches is used for system
20 for the switch MAC-s and other peripherals.
24 const: delta,tn48m-cpld
31 "#address-cells":
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/linux-6.12.1/drivers/gpio/
Dgpio-tn48m.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Delta TN48M CPLD GPIO driver
49 if (!pdev->dev.parent) in tn48m_gpio_probe()
50 return -ENODEV; in tn48m_gpio_probe()
52 gpio_config = device_get_match_data(&pdev->dev); in tn48m_gpio_probe()
54 return -ENODEV; in tn48m_gpio_probe()
56 ret = device_property_read_u32(&pdev->dev, "reg", &base); in tn48m_gpio_probe()
60 regmap = dev_get_regmap(pdev->dev.parent, NULL); in tn48m_gpio_probe()
62 return -ENODEV; in tn48m_gpio_probe()
65 config.parent = &pdev->dev; in tn48m_gpio_probe()
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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
127 Enables support for the idio-16 library functions. The idio-16 library
129 ACCES IDIO-16 family such as the 104-IDIO-16 and the PCI-IDIO-16.
131 If built as a module its name will be gpio-idio-16.
137 tristate "GPIO driver for 74xx-ICs with MMIO access"
141 Say yes here to support GPIO functionality for 74xx-compatible ICs
158 If driver is built as a module it will be called gpio-altera.
319 tristate "Generic memory-mapped GPIO controller support (MMIO platform device)"
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