Lines Matching +full:device +full:- +full:state +full:- +full:gpios

2 # SPDX-License-Identifier: Apache-2.0
6 include: [spi-controller.yaml, pinctrl-device.yaml, nordic-clockpin.yaml]
15   pinctrl-0:
18   pinctrl-names:
21   max-frequency:
28   overrun-character:
34   easydma-maxcnt-bits:
41   wake-gpios:
42     type: phandle-array
44       Optional bi-directional line that allows SPI master to indicate to SPI
47       transfer when it is actually needed, and stay in any desired low-power
48       state otherwise.
50       - initially, SPI slave configures its WAKE line pin as an input and SPI
51         master keeps the line in the low state
52       - when a transfer is to be performed, SPI master configures its WAKE
53         line pin as an input with pull-up; this changes the line state to
54         high but allows SPI slave to override that state
55       - when SPI slave detects the high state of the WAKE line, it prepares
58       - the generated high-to-low transition on the WAKE line is a signal
60       - SPI slave releases the line by configuring its pin back to be an input
61         and SPI master again keeps the line in the low state