Lines Matching +full:active +full:- +full:high
1 .. SPDX-License-Identifier: GPL-2.0
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 } },
55 active low or high, the "active_low" argument can be used here. Setting
56 it to 1 marks the GPIO as active low.
61 In our Bluetooth example the "reset-gpios" refers to the second GpioIo()
74 Explicit x (no _DSD) as Pull Bias (Up == High, Down == Low),
75 assuming non-active (Polarity = !Pull Bias)
76 Down Low as low, assuming active
77 Down High as low, assuming non-active
78 Up Low as high, assuming non-active
79 Up High as high, assuming active
83 is explicit and _DSD is present, will be treated as active with a high
94 "cs-gpios",
103 the SPISerialBus() resource defines it on the per-chip basis. In order
105 Active High. Even for the cases when _DSD() is involved (see the example
106 above) the GPIO CS polarity must be defined Active High to avoid ambiguity.
114 - gpio-hog
115 - output-high
116 - output-low
117 - input
118 - line-name
124 ToUUID("dbb8e3e6-5886-4ba6-8795-1319f52a966b"),
126 Package () { "hog-gpio8", "G8PU" }
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
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
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
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 },
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);