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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
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
22 the I3C specification for a detailed description of what each
[all …]
/Linux-v5.15/include/linux/i3c/
Dmaster.h15 #include <linux/i3c/ccc.h>
16 #include <linux/i3c/device.h>
31 * struct i3c_i2c_dev_desc - Common part of the I3C/I2C device descriptor
32 * @node: node element used to insert the slot into the I2C or I3C device
34 * @master: I3C master that instantiated this device. Will be used to do
35 * I2C/I3C transfers
39 * This structure is describing common I3C/I2C dev information.
57 * @lvr: LVR (Legacy Virtual Register) needed by the I3C core to know about
61 * Each I2C device connected on the I3C bus should have one.
75 * @lvr: LVR (Legacy Virtual Register) needed by the I3C core to know about
[all …]
Ddevice.h19 * enum i3c_error_code - I3C error codes
21 * These are the standard error codes as defined by the I3C specification.
27 * @I3C_ERROR_UNKNOWN: unknown error, usually means the error is not I3C
53 * struct i3c_priv_xfer - I3C SDR private transfer
59 * @err: I3C error code
72 * enum i3c_dcr - I3C DCR values
73 * @I3C_DCR_GENERIC_DEVICE: generic I3C device
97 * struct i3c_device_info - I3C device information
111 * These are all basic information that should be advertised by an I3C device.
114 * For each I3C slave attached to a master with
[all …]
Dccc.h12 #include <linux/i3c/device.h>
14 /* I3C CCC (Common Command Codes) related definitions */
88 * The IBI length is only valid if the I3C slave is IBI capable
97 * struct i3c_ccc_dev_desc - I3C/I2C device descriptor used for DEFSLVS
99 * @dyn_addr: dynamic address assigned to the I3C slave or 0 if the entry is
102 * @lvr: LVR value (not applicable to entries describing I3C devices)
108 * descriptors (one entry per I3C/I2C dev controlled by the master).
154 * Information passed to the ENTTM CCC to instruct an I3C device to enter a
164 * @addr: dynamic address to assign to an I3C device
167 * dynamic address of an I3C device.
[all …]
/Linux-v5.15/drivers/i3c/master/
DKconfig3 tristate "Cadence I3C master driver"
4 depends on I3C
8 Enable this driver if you want to support Cadence I3C master block.
11 tristate "Synospsys DesignWare I3C master driver"
12 depends on I3C
17 Support for Synopsys DesignWare MIPI I3C Controller.
23 will be called dw-i3c-master.
26 tristate "Silvaco I3C Dual-Role Master driver"
27 depends on I3C
31 Support for Silvaco I3C Dual-Role Master Controller.
[all …]
DMakefile2 obj-$(CONFIG_CDNS_I3C_MASTER) += i3c-master-cdns.o
3 obj-$(CONFIG_DW_I3C_MASTER) += dw-i3c-master.o
4 obj-$(CONFIG_SVC_I3C_MASTER) += svc-i3c-master.o
5 obj-$(CONFIG_MIPI_I3C_HCI) += mipi-i3c-hci/
/Linux-v5.15/Documentation/devicetree/bindings/i3c/
Di3c.yaml4 $id: http://devicetree.org/schemas/i3c/i3c.yaml#
7 title: I3C bus binding
14 I3C busses can be described with a node for the primary I3C controller device
15 and a set of child nodes for each I2C or I3C slave on the bus. Each of them
20 pattern: "^i3c-master@[0-9a-f]+$"
27 All I3C devices are supposed to support DAA (Dynamic Address Assignment),
28 and are thus discoverable. So, by default, I3C devices do not have to be
32 I3C devices.
34 Another use case for describing an I3C device in the device tree is when
35 this I3C device has a static I2C address and we want to assign it a
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Dcdns,i3c-master.txt1 Bindings for cadence I3C master block
6 - compatible: shall be "cdns,i3c-master"
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):
19 Documentation/devicetree/bindings/i3c/i3c.yaml for more details):
22 - i3c-scl-hz
24 I3C device connected on the bus follow the generic description (see
25 Documentation/devicetree/bindings/i3c/i3c.yaml for more details).
29 i3c-master@0d040000 {
[all …]
Dsnps,dw-i3c-master.txt1 Bindings for Synopsys DesignWare I3C master block
6 - compatible: shall be "snps,dw-i3c-master-1.00a"
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):
18 Documentation/devicetree/bindings/i3c/i3c.yaml for more details):
21 - i3c-scl-hz
23 I3C device connected on the bus follow the generic description (see
24 Documentation/devicetree/bindings/i3c/i3c.yaml for more details).
28 i3c-master@2000 {
[all …]
Dmipi-i3c-hci.yaml4 $id: "http://devicetree.org/schemas/i3c/mipi-i3c-hci.yaml#"
7 title: MIPI I3C HCI Device Tree Bindings
13 - $ref: /schemas/i3c/i3c.yaml#
16 MIPI I3C Host Controller Interface
18 The MIPI I3C HCI (Host Controller Interface) specification defines
19 a common software driver interface to support compliant MIPI I3C
27 https://www.mipi.org/specifications/i3c-hci
31 const: mipi-i3c-hci
46 i3c-master@a0000000 {
47 compatible = "mipi-i3c-hci";
Dsilvaco,i3c-master.yaml4 $id: http://devicetree.org/schemas/i3c/silvaco,i3c-master.yaml#
7 title: Silvaco I3C master
13 - $ref: "i3c.yaml#"
17 const: silvaco,i3c-master-v1
51 i3c-master@a0000000 {
52 compatible = "silvaco,i3c-master-v1";
/Linux-v5.15/Documentation/driver-api/i3c/
Dprotocol.rst4 I3C protocol
12 collisions are prevented, ...) please have a look at the I3C specification.
14 This document is just a brief introduction to the I3C protocol and the concepts
16 I3C specification (can be downloaded here
17 https://resources.mipi.org/mipi-i3c-v1-download).
22 The I3C (pronounced 'eye-three-see') is a MIPI standardized protocol designed
27 I3C Bus
30 An I3C bus is made of several I3C devices and possibly some I2C devices as
31 well, but let's focus on I3C devices for now.
33 An I3C device on the I3C bus can have one of the following roles:
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Ddevice-driver-api.rst4 I3C device driver API
7 .. kernel-doc:: include/linux/i3c/device.h
9 .. kernel-doc:: drivers/i3c/device.c
Dmaster-driver-api.rst4 I3C master controller driver API
7 .. kernel-doc:: drivers/i3c/master.c
9 .. kernel-doc:: include/linux/i3c/master.h
/Linux-v5.15/drivers/i3c/
DKconfig3 menuconfig I3C config
4 tristate "I3C support"
7 I3C is a serial protocol standardized by the MIPI alliance.
13 The I3C protocol also standardizes the slave device types and is
16 If you want I3C support, you should say Y here and also to the
19 This I3C support can also be built as a module. If so, the module
20 will be called i3c.
22 if I3C
23 source "drivers/i3c/master/Kconfig"
24 endif # I3C
Dmaster.c27 * @bus: I3C bus to take the lock on
38 * logic to rely on I3C device information that could be changed behind their
49 * @bus: I3C bus to release the lock on
62 * @bus: I3C bus to take the lock on
66 * maintenance operations). Basically all communications with I3C devices are
68 * state or I3C dynamic address).
71 * In other words, transfer requests passed to the I3C master can be submitted
72 * in parallel and I3C master drivers have to use their own locking to make
83 * @bus: I3C bus to release the lock on
247 struct i3c_device *i3c = dev_to_i3cdev(dev); in modalias_show() local
[all …]
Ddevice.c18 * i3c_device_do_priv_xfers() - do I3C SDR private transfers directed to a
54 * i3c_device_get_info() - get I3C device information
59 * Retrieve I3C dev info.
181 * @i3cdev: I3C device
192 * dev_to_i3cdev() - Returns the I3C device containing @dev
195 * Return: a pointer to an I3C device object.
205 * @i3cdev: I3C device
206 * @id_table: I3C device match table
251 * i3c_driver_register_with_owner() - register an I3C device driver
266 pr_err("Trying to register an i3c driver without probe callback\n"); in i3c_driver_register_with_owner()
[all …]
DMakefile2 i3c-y := device.o master.o
3 obj-$(CONFIG_I3C) += i3c.o
/Linux-v5.15/drivers/base/regmap/
Dregmap-i3c.c5 #include <linux/i3c/device.h>
6 #include <linux/i3c/master.h>
12 struct i3c_device *i3c = dev_to_i3cdev(dev); in regmap_i3c_write() local
21 return i3c_device_do_priv_xfers(i3c, xfers, 1); in regmap_i3c_write()
29 struct i3c_device *i3c = dev_to_i3cdev(dev); in regmap_i3c_read() local
40 return i3c_device_do_priv_xfers(i3c, xfers, 2); in regmap_i3c_read()
48 struct regmap *__devm_regmap_init_i3c(struct i3c_device *i3c, in __devm_regmap_init_i3c() argument
53 return __devm_regmap_init(&i3c->dev, &regmap_i3c, &i3c->dev, config, in __devm_regmap_init_i3c()
59 MODULE_DESCRIPTION("Regmap I3C Module");
/Linux-v5.15/drivers/iio/imu/st_lsm6dsx/
Dst_lsm6dsx_i3c.c10 #include <linux/i3c/device.h>
11 #include <linux/i3c/master.h>
23 MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids);
37 dev_err(&i3cdev->dev, "Failed to register i3c regmap %ld\n", PTR_ERR(regmap)); in st_lsm6dsx_i3c_probe()
55 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver");
DKconfig5 depends on (I2C || SPI || I3C)
10 select IIO_ST_LSM6DSX_I3C if (I3C)
/Linux-v5.15/drivers/i3c/master/mipi-i3c-hci/
Dxfer_mode_rate.h9 * This applies starting from I3C HCI v2.0.
22 #define XFERMODE_IDX_I3C_SDR 0x00 /* I3C SDR Mode */
23 #define XFERMODE_IDX_I3C_HDR_DDR 0x01 /* I3C HDR-DDR Mode */
24 #define XFERMODE_IDX_I3C_HDR_T 0x02 /* I3C HDR-Ternary Mode */
25 #define XFERMODE_IDX_I3C_HDR_BT 0x03 /* I3C HDR-BT Mode */
Dcmd_v2.c7 * I3C HCI v2.0 Command Descriptor Handling
9 * Note: The I3C HCI v2.0 spec is still in flux. The code here will change.
13 #include <linux/i3c/master.h>
70 if (bus->scl_rate.i3c >= 12000000) in get_i3c_rate_idx()
72 if (bus->scl_rate.i3c > 8000000) in get_i3c_rate_idx()
74 if (bus->scl_rate.i3c > 6000000) in get_i3c_rate_idx()
76 if (bus->scl_rate.i3c > 4000000) in get_i3c_rate_idx()
78 if (bus->scl_rate.i3c > 2000000) in get_i3c_rate_idx()
Dcmd_v1.c7 * I3C HCI v1.0/v1.1 Command Descriptor Handling
11 #include <linux/i3c/master.h>
126 if (bus->scl_rate.i3c >= 12500000) in get_i3c_mode()
128 if (bus->scl_rate.i3c > 8000000) in get_i3c_mode()
130 if (bus->scl_rate.i3c > 6000000) in get_i3c_mode()
132 if (bus->scl_rate.i3c > 4000000) in get_i3c_mode()
134 if (bus->scl_rate.i3c > 2000000) in get_i3c_mode()
DMakefile3 obj-$(CONFIG_MIPI_I3C_HCI) += mipi-i3c-hci.o
4 mipi-i3c-hci-y := core.o ext_caps.o pio.o dma.o \

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