Lines Matching +full:i2c +full:- +full:gpio

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: GPIO bitbanged I2C
10   - Wolfram Sang <wsa@kernel.org>
13   - $ref: /schemas/i2c/i2c-controller.yaml#
18       - const: i2c-gpio
20   sda-gpios:
22       gpio used for the sda signal, this should be flagged as
24       from <dt-bindings/gpio/gpio.h> since the signal is by definition
28   scl-gpios:
30       gpio used for the scl signal, this should be flagged as
32       from <dt-bindings/gpio/gpio.h> since the signal is by definition
36   i2c-gpio,sda-output-only:
40   i2c-gpio,scl-output-only:
44   i2c-gpio,delay-us:
45     description: delay between GPIO operations (may depend on each platform)
47   i2c-gpio,timeout-ms:
54     description: sda and scl gpio, alternative for {sda,scl}-gpios
56   i2c-gpio,sda-open-drain:
60       the GPIO line used for SDA into open drain mode, and that something is
61       not the GPIO chip. It is essentially an inconsistency flag.
63   i2c-gpio,scl-open-drain:
67       GPIO line used for SCL into open drain mode, and that something is not
68       the GPIO chip. It is essentially an inconsistency flag.
70   i2c-gpio,sda-has-no-pullup:
72     description: sda is used in a non-compliant way and has no pull-up.
73       Therefore disable open-drain. This property is mutually-exclusive
74       with i2c-gpio,sda-open-drain.
76   i2c-gpio,scl-has-no-pullup:
78     description: scl is used in a non-compliant way and has no pull-up.
79       Therefore disable open-drain. This property is mutually-exclusive
80       with i2c-gpio,scl-open-drain.
83   i2c-gpio,sda-has-no-pullup:
86         - i2c-gpio,sda-open-drain
87   i2c-gpio,scl-has-no-pullup:
90         - i2c-gpio,scl-open-drain
93   - compatible
94   - sda-gpios
95   - scl-gpios