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/freebsd/sys/contrib/device-tree/Bindings/i2c/
H A Dnxp,pca9541.txt1 * NXP PCA9541 I2C bus master selector
5 - compatible: Must be "nxp,pca9541"
7 - reg: The I2C address of the device.
11 - I2C arbitration bus node. See i2c-arb.txt in this directory.
16 i2c-arbitrator@74 {
20 i2c-arb {
21 #address-cells = <1>;
22 #size-cells = <0>;
H A Di2c-gate.txt1 An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected
2 to the i2c bus. Gates are similar to arbitrators in that you need to perform
3 some kind of operation to access the i2c bus past the arbitrator/gate, but
7 Common i2c gate properties.
9 - i2c-gate child node
11 Required properties for the i2c-gate child node:
12 - #address-cells = <1>;
13 - #size-cells = <0>;
15 Optional properties for i2c-gate child node:
16 - Child nodes conforming to i2c bus binding
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H A Di2c-gate.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-gate.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Common i2c gate properties
10 - Peter Rosin <peda@axentia.se>
13 An i2c gate is useful to e.g. reduce the digital noise for RF tuners connected
14 to the i2c bus. Gates are similar to arbitrators in that you need to perform
15 some kind of operation to access the i2c bus past the arbitrator/gate, but
20 - $ref: /schemas/i2c/i2c-controller.yaml
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H A Di2c-mt65xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i2c/i2c-mt65xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MediaTek I2C controller
10 This driver interfaces with the native I2C controller present in
14 - $ref: /schemas/i2c/i2c-controller.yaml#
17 - Qii Wang <qii.wang@mediatek.com>
22 - const: mediatek,mt2712-i2c
23 - const: mediatek,mt6577-i2c
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H A Di2c-arb-gpio-challenge.txt1 GPIO-based I2C Arbitration Using a Challenge & Response Mechanism
4 the master of an I2C bus in a multimaster situation.
7 the standard I2C multi-master rules. Using GPIOs is generally useful in
12 * It is nonstandard (not using standard I2C multimaster)
14 problems (hard to tell if i2c issues were caused by one master, another, or
21 others can see. These are all active low with pull-ups enabled. We'll
24 - OUR_CLAIM: output from us signaling to other hosts that we want the bus
25 - THEIR_CLAIMS: output from others signaling that they want the bus
43 - compatible: i2c-arb-gpio-challenge
44 - our-claim-gpio: The GPIO that we use to claim the bus.
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/freebsd/sys/contrib/device-tree/Bindings/powerpc/fsl/
H A Dmpc5200.txt2 ----------------------------
4 (c) 2006-2009 Secret Lab Technologies Ltd
8 ------------------
9 For mpc5200 on-chip devices, the format for each compatible value is
10 <chip>-<device>[-<mode>]. The OS should be able to match a device driver
21 "fsl,mpc5200-<device>".
29 compatible = "fsl,mpc5200b-<device>","fsl,mpc5200-<device>";
34 ie. ethernet on mpc5200: compatible = "fsl,mpc5200-fec";
35 ethernet on mpc5200b: compatible = "fsl,mpc5200b-fec", "fsl,mpc5200-fec";
39 "fsl,mpc5200-psc-i2s", not "fsl,mpc5200-i2s". This convention is chosen to
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/freebsd/sys/contrib/device-tree/src/arm/samsung/
H A Dexynos5250-snow-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/maxim,max77686.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/sound/samsung-i2
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