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/Linux-v5.15/Documentation/devicetree/bindings/i3c/
Dcdns,i3c-master.txt1 Bindings for cadence I3C master block
5 --------------------
6 - compatible: shall be "cdns,i3c-master"
7 - clocks: shall reference the pclk and sysclk
8 - clock-names: shall contain "pclk" and "sysclk"
9 - interrupts: the interrupt line connected to this I3C master
10 - reg: I3C master registers
13 Documentation/devicetree/bindings/i3c/i3c.yaml for more details):
15 - #address-cells: shall be set to 1
16 - #size-cells: shall be set to 0
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Di3c.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/i3c/i3c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: I3C bus binding
10 - Alexandre Belloni <alexandre.belloni@bootlin.com>
11 - Miquel Raynal <miquel.raynal@bootlin.com>
14 I3C busses can be described with a node for the primary I3C controller device
15 and a set of child nodes for each I2C or I3C slave on the bus. Each of them
20 pattern: "^i3c-master@[0-9a-f]+$"
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Dsnps,dw-i3c-master.txt1 Bindings for Synopsys DesignWare I3C master block
5 --------------------
6 - compatible: shall be "snps,dw-i3c-master-1.00a"
7 - clocks: shall reference the core_clk
8 - interrupts: the interrupt line connected to this I3C master
9 - reg: Offset and length of I3C master registers
12 Documentation/devicetree/bindings/i3c/i3c.yaml for more details):
14 - #address-cells: shall be set to 3
15 - #size-cells: shall be set to 0
18 Documentation/devicetree/bindings/i3c/i3c.yaml for more details):
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/Linux-v5.15/Documentation/ABI/testing/
Dsysfs-bus-i3c1 What: /sys/bus/i3c/devices/i3c-<bus-id>
3 Contact: linux-i3c@vger.kernel.org
5 An I3C bus. This directory will contain one sub-directory per
6 I3C device present on the bus.
8 What: /sys/bus/i3c/devices/i3c-<bus-id>/current_master
10 Contact: linux-i3c@vger.kernel.org
12 Expose the master that owns the bus (<bus-id>-<master-pid>) at
17 What: /sys/bus/i3c/devices/i3c-<bus-id>/mode
19 Contact: linux-i3c@vger.kernel.org
21 I3C bus mode. Can be "pure", "mixed-fast" or "mixed-slow". See
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/Linux-v5.15/drivers/i3c/
Dmaster.c1 // SPDX-License-Identifier: GPL-2.0
26 * i3c_bus_maintenance_lock - Lock the bus for a maintenance operation
27 * @bus: I3C bus to take the lock on
31 * - enabling/disabling slave events
32 * - re-triggering DAA
33 * - changing the dynamic address of a device
34 * - relinquishing mastership
35 * - ...
38 * logic to rely on I3C device information that could be changed behind their
43 down_write(&bus->lock); in i3c_bus_maintenance_lock()
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