Lines Matching +full:line +full:- +full:name
1 .. SPDX-License-Identifier: GPL-2.0
13 With _DSD we can now query GPIOs using a name instead of an integer
19 Name (_HID, ...)
21 Name (_CRS, ResourceTemplate ()
29 Name (_DSD, Package ()
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 } },
42 Package () { "name", Package () { ref, index, pin, active_low }}
61 In our Bluetooth example the "reset-gpios" refers to the second GpioIo()
75 assuming non-active (Polarity = !Pull Bias)
77 Down High as low, assuming non-active
78 Up Low as high, assuming non-active
94 "cs-gpios",
103 the SPISerialBus() resource defines it on the per-chip basis. In order
114 - gpio-hog
115 - output-high
116 - output-low
117 - input
118 - line-name
122 Name (_DSD, Package () {
124 ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
126 Package () { "hog-gpio8", "G8PU" }
130 Name (G8PU, Package () {
131 ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
133 Package () { "gpio-hog", 1 },
135 Package () { "output-high", 1 },
136 Package () { "line-name", "gpio8-pullup" },
140 - gpio-line-names
142 The ``gpio-line-names`` declaration is a list of strings ("names"), which
143 describes each line/pin of a GPIO controller/expander. This list, contained in
145 table (typically inside the DSDT). The ``gpio-line-names`` list must respect the
148 - the first name in the list corresponds with the first line/pin of the GPIO
150 - the names inside the list must be consecutive (no "holes" are permitted)
151 - the list can be incomplete and can end before the last GPIO line: in
153 - empty names are allowed (two quotation marks ``""`` correspond to an empty
154 name)
155 - names inside one GPIO controller/expander must be unique
161 "gpio-line-names",
176 gpiochip4 - 16 lines:
177 line 0: "pin_0" unused input active-high
178 line 1: "pin_1" unused input active-high
179 line 2: unnamed unused input active-high
180 line 3: unnamed unused input active-high
181 line 4: "pin_3" unused input active-high
182 line 5: "pin_4_push_button" unused input active-high
183 line 6: unnamed unused input active-high
184 line 7 unnamed unused input active-high
185 line 8: unnamed unused input active-high
186 line 9: unnamed unused input active-high
187 line 10: unnamed unused input active-high
188 line 11: unnamed unused input active-high
189 line 12: unnamed unused input active-high
190 line 13: unnamed unused input active-high
191 line 14: unnamed unused input active-high
192 line 15: unnamed unused input active-high
200 "gpio-line-names",
226 To do that, the driver needs to define a mapping table as a NULL-terminated
227 array of struct acpi_gpio_mapping objects that each contains a name, a pointer
228 to an array of line data (struct acpi_gpio_params) objects and the size of that
232 line in that resource starting from zero, and the active-low flag for that line,
242 { "reset-gpios", &reset_gpio, 1 },
243 { "shutdown-gpios", &shutdown_gpio, 1 },
265 Name (_HID, ...)
267 Name (_CRS, ResourceTemplate () {
282 the GpioIo() in _CRS desc will hold ERR_PTR(-ENOENT).
305 desc = gpiod_get(dev, "non-null-connection-id", flags);
306 desc = gpiod_get_index(dev, "non-null-connection-id", index, flags);