Lines Matching refs:master
73 * In other words, transfer requests passed to the I3C master can be submitted
74 * in parallel and I3C master drivers have to use their own locking to make
111 struct i3c_master_controller *master;
116 master = dev_to_i3cmaster(dev);
118 return &master->bus;
123 struct i3c_master_controller *master;
128 master = dev_to_i3cmaster(dev);
130 return master->this;
560 static int i3c_set_hotjoin(struct i3c_master_controller *master, bool enable)
564 if (!master || !master->ops)
567 if (!master->ops->enable_hotjoin || !master->ops->disable_hotjoin)
570 i3c_bus_normaluse_lock(&master->bus);
573 ret = master->ops->enable_hotjoin(master);
575 ret = master->ops->disable_hotjoin(master);
577 master->hotjoin = enable;
579 i3c_bus_normaluse_unlock(&master->bus);
597 ret = i3c_set_hotjoin(i3cbus->cur_master->common.master, res);
606 * @master: I3C master object
610 int i3c_master_enable_hotjoin(struct i3c_master_controller *master)
612 return i3c_set_hotjoin(master, true);
618 * @master: I3C master object
622 int i3c_master_disable_hotjoin(struct i3c_master_controller *master)
624 return i3c_set_hotjoin(master, false);
634 ret = sysfs_emit(buf, "%d\n", i3cbus->cur_master->common.master->hotjoin);
659 struct i3c_master_controller *master = dev_to_i3cmaster(dev);
662 if (master->wq)
663 destroy_workqueue(master->wq);
678 struct i3c_master_controller *master = i3c_bus_to_i3c_master(i3cbus);
705 dev_dbg(&master->dev, "i2c-scl = %ld Hz i3c-scl = %ld Hz\n",
726 i3c_master_to_i2c_adapter(struct i3c_master_controller *master)
728 return &master->i2c;
737 i3c_master_alloc_i2c_dev(struct i3c_master_controller *master,
746 dev->common.master = master;
782 static int i3c_master_send_ccc_cmd_locked(struct i3c_master_controller *master,
787 if (!cmd || !master)
790 if (WARN_ON(master->init_done &&
791 !rwsem_is_locked(&master->bus.lock)))
794 if (!master->ops->send_ccc_cmd)
800 if (master->ops->supports_ccc_cmd &&
801 !master->ops->supports_ccc_cmd(master, cmd))
804 ret = master->ops->send_ccc_cmd(master, cmd);
816 i3c_master_find_i2c_dev_by_addr(const struct i3c_master_controller *master,
821 i3c_bus_for_each_i2cdev(&master->bus, dev) {
831 * @master: I3C master object
839 int i3c_master_get_free_addr(struct i3c_master_controller *master,
842 return i3c_bus_get_free_addr(&master->bus, start_addr);
862 i3c_master_alloc_i3c_dev(struct i3c_master_controller *master,
871 dev->common.master = master;
878 static int i3c_master_rstdaa_locked(struct i3c_master_controller *master,
886 if (!master)
889 addrstat = i3c_bus_get_addr_slot_status(&master->bus, addr);
897 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
906 * @master: master used to send frames on the bus
911 * behind dynamic address assignment has to be handled in the I3C master
919 int i3c_master_entdaa_locked(struct i3c_master_controller *master)
927 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
934 static int i3c_master_enec_disec_locked(struct i3c_master_controller *master,
952 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
960 * @master: master used to send frames on the bus
972 int i3c_master_disec_locked(struct i3c_master_controller *master, u8 addr,
975 return i3c_master_enec_disec_locked(master, addr, false, evts);
981 * @master: master used to send frames on the bus
993 int i3c_master_enec_locked(struct i3c_master_controller *master, u8 addr,
996 return i3c_master_enec_disec_locked(master, addr, true, evts);
1002 * @master: master used to send frames on the bus
1004 * Send a DEFSLVS CCC command containing all the devices known to the @master.
1011 * It should also be called if a master ACKed an Hot-Join request and assigned
1019 int i3c_master_defslvs_locked(struct i3c_master_controller *master)
1031 if (!master)
1034 bus = i3c_master_get_bus(master);
1038 if (i3cdev == master->this)
1046 /* No other master on the bus, skip DEFSLVS. */
1060 defslvs->master.bcr = master->this->info.bcr;
1061 defslvs->master.dcr = master->this->info.dcr;
1062 defslvs->master.dyn_addr = master->this->info.dyn_addr << 1;
1063 defslvs->master.static_addr = I3C_BROADCAST_ADDR << 1;
1073 /* Skip the I3C dev representing this master. */
1074 if (i3cdev == master->this)
1085 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1092 static int i3c_master_setda_locked(struct i3c_master_controller *master,
1111 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1117 static int i3c_master_setdasa_locked(struct i3c_master_controller *master,
1120 return i3c_master_setda_locked(master, static_addr, dyn_addr, true);
1123 static int i3c_master_setnewda_locked(struct i3c_master_controller *master,
1126 return i3c_master_setda_locked(master, oldaddr, newaddr, false);
1129 static int i3c_master_getmrl_locked(struct i3c_master_controller *master,
1149 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1171 static int i3c_master_getmwl_locked(struct i3c_master_controller *master,
1184 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1201 static int i3c_master_getmxds_locked(struct i3c_master_controller *master,
1215 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1222 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1245 static int i3c_master_gethdrcap_locked(struct i3c_master_controller *master,
1259 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1276 static int i3c_master_getpid_locked(struct i3c_master_controller *master,
1289 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1306 static int i3c_master_getbcr_locked(struct i3c_master_controller *master,
1319 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1331 static int i3c_master_getdcr_locked(struct i3c_master_controller *master,
1344 ret = i3c_master_send_ccc_cmd_locked(master, &cmd);
1358 struct i3c_master_controller *master = i3c_dev_get_master(dev);
1365 slot_status = i3c_bus_get_addr_slot_status(&master->bus,
1371 ret = i3c_master_getpid_locked(master, &dev->info);
1375 ret = i3c_master_getbcr_locked(master, &dev->info);
1379 ret = i3c_master_getdcr_locked(master, &dev->info);
1384 ret = i3c_master_getmxds_locked(master, &dev->info);
1392 i3c_master_getmrl_locked(master, &dev->info);
1393 i3c_master_getmwl_locked(master, &dev->info);
1396 ret = i3c_master_gethdrcap_locked(master, &dev->info);
1406 struct i3c_master_controller *master = i3c_dev_get_master(dev);
1409 i3c_bus_set_addr_slot_status(&master->bus,
1414 i3c_bus_set_addr_slot_status(&master->bus, dev->info.dyn_addr,
1418 i3c_bus_set_addr_slot_status(&master->bus, dev->info.dyn_addr,
1424 struct i3c_master_controller *master = i3c_dev_get_master(dev);
1431 status = i3c_bus_get_addr_slot_status(&master->bus,
1440 i3c_bus_set_addr_slot_status(&master->bus,
1453 status = i3c_bus_get_addr_slot_status(&master->bus,
1458 i3c_bus_set_addr_slot_status(&master->bus, dev->info.dyn_addr,
1466 i3c_bus_set_addr_slot_status(&master->bus,
1473 static int i3c_master_attach_i3c_dev(struct i3c_master_controller *master,
1489 /* Do not attach the master device itself. */
1490 if (master->this != dev && master->ops->attach_i3c_dev) {
1491 ret = master->ops->attach_i3c_dev(dev);
1498 list_add_tail(&dev->common.node, &master->bus.devs.i3c);
1506 struct i3c_master_controller *master = i3c_dev_get_master(dev);
1513 status = i3c_bus_get_addr_slot_status(&master->bus,
1517 i3c_bus_set_addr_slot_status(&master->bus,
1521 i3c_bus_set_addr_slot_status(&master->bus, old_dyn_addr,
1525 if (master->ops->reattach_i3c_dev) {
1526 ret = master->ops->reattach_i3c_dev(dev, old_dyn_addr);
1538 struct i3c_master_controller *master = i3c_dev_get_master(dev);
1540 /* Do not detach the master device itself. */
1541 if (master->this != dev && master->ops->detach_i3c_dev)
1542 master->ops->detach_i3c_dev(dev);
1548 static int i3c_master_attach_i2c_dev(struct i3c_master_controller *master,
1553 if (master->ops->attach_i2c_dev) {
1554 ret = master->ops->attach_i2c_dev(dev);
1559 list_add_tail(&dev->common.node, &master->bus.devs.i2c);
1566 struct i3c_master_controller *master = i2c_dev_get_master(dev);
1570 if (master->ops->detach_i2c_dev)
1571 master->ops->detach_i2c_dev(dev);
1574 static int i3c_master_early_i3c_dev_add(struct i3c_master_controller *master,
1584 i3cdev = i3c_master_alloc_i3c_dev(master, &info);
1590 ret = i3c_master_attach_i3c_dev(master, i3cdev);
1594 ret = i3c_master_setdasa_locked(master, i3cdev->info.static_addr,
1611 i3c_master_rstdaa_locked(master, i3cdev->boardinfo->init_dyn_addr);
1621 i3c_master_register_new_i3c_devs(struct i3c_master_controller *master)
1626 if (!master->init_done)
1629 i3c_bus_for_each_i3cdev(&master->bus, desc) {
1630 if (desc->dev || !desc->info.dyn_addr || desc == master->this)
1637 desc->dev->bus = &master->bus;
1639 desc->dev->dev.parent = &master->dev;
1643 dev_set_name(&desc->dev->dev, "%d-%llx", master->bus.id,
1651 dev_err(&master->dev,
1660 * @master: master doing the DAA
1666 * The I3C device object is returned in case the master wants to attach
1673 int i3c_master_do_daa(struct i3c_master_controller *master)
1677 i3c_bus_maintenance_lock(&master->bus);
1678 ret = master->ops->do_daa(master);
1679 i3c_bus_maintenance_unlock(&master->bus);
1684 i3c_bus_normaluse_lock(&master->bus);
1685 i3c_master_register_new_i3c_devs(master);
1686 i3c_bus_normaluse_unlock(&master->bus);
1693 * i3c_master_set_info() - set master device information
1694 * @master: master used to send frames on the bus
1697 * Set master device info. This should be called from
1700 * Not all &i3c_device_info fields are meaningful for a master device.
1716 int i3c_master_set_info(struct i3c_master_controller *master,
1722 if (!i3c_bus_dev_addr_is_avail(&master->bus, info->dyn_addr))
1726 master->secondary)
1729 if (master->this)
1732 i3cdev = i3c_master_alloc_i3c_dev(master, info);
1736 master->this = i3cdev;
1737 master->bus.cur_master = master->this;
1739 ret = i3c_master_attach_i3c_dev(master, i3cdev);
1752 static void i3c_master_detach_free_devs(struct i3c_master_controller *master)
1757 list_for_each_entry_safe(i3cdev, i3ctmp, &master->bus.devs.i3c,
1762 i3c_bus_set_addr_slot_status(&master->bus,
1769 list_for_each_entry_safe(i2cdev, i2ctmp, &master->bus.devs.i2c,
1772 i3c_bus_set_addr_slot_status(&master->bus,
1781 * @master: main master initializing the bus
1786 * 1. Attach I2C devs to the master so that the master can fill its internal
1790 * the master controller. That's usually where the bus mode is selected
1802 * devices to the master.
1811 static int i3c_master_bus_init(struct i3c_master_controller *master)
1823 list_for_each_entry(i2cboardinfo, &master->boardinfo.i2c, node) {
1824 status = i3c_bus_get_addr_slot_status(&master->bus,
1831 i3c_bus_set_addr_slot_status(&master->bus,
1835 i2cdev = i3c_master_alloc_i2c_dev(master,
1843 ret = i3c_master_attach_i2c_dev(master, i2cdev);
1854 ret = master->ops->bus_init(master);
1859 * The master device should have been instantiated in ->bus_init(),
1862 if (!master->this) {
1863 dev_err(&master->dev,
1873 ret = i3c_master_rstdaa_locked(master, I3C_BROADCAST_ADDR);
1878 ret = i3c_master_disec_locked(master, I3C_BROADCAST_ADDR,
1891 list_for_each_entry(i3cboardinfo, &master->boardinfo.i3c, node) {
1900 ret = i3c_bus_get_addr_slot_status(&master->bus,
1907 i3c_bus_set_addr_slot_status(&master->bus,
1920 i3c_master_early_i3c_dev_add(master, i3cboardinfo);
1923 ret = i3c_master_do_daa(master);
1930 i3c_master_rstdaa_locked(master, I3C_BROADCAST_ADDR);
1933 if (master->ops->bus_cleanup)
1934 master->ops->bus_cleanup(master);
1937 i3c_master_detach_free_devs(master);
1942 static void i3c_master_bus_cleanup(struct i3c_master_controller *master)
1944 if (master->ops->bus_cleanup)
1945 master->ops->bus_cleanup(master);
1947 i3c_master_detach_free_devs(master);
1952 struct i3c_master_controller *master = i3cdev->common.master;
1955 list_for_each_entry(i3cboardinfo, &master->boardinfo.i3c, node) {
1968 struct i3c_master_controller *master = i3c_dev_get_master(refdev);
1971 i3c_bus_for_each_i3cdev(&master->bus, i3cdev) {
1981 * @master: master used to send frames on the bus
1988 * The I3C device object is returned in case the master wants to attach
1995 int i3c_master_add_i3c_dev_locked(struct i3c_master_controller *master,
2005 if (!master)
2008 newdev = i3c_master_alloc_i3c_dev(master, &info);
2012 ret = i3c_master_attach_i3c_dev(master, newdev);
2063 * master
2075 * the address assigned by the master.
2077 ret = i3c_master_setnewda_locked(master,
2085 dev_err(&master->dev,
2087 master->bus.id, newdev->info.pid);
2102 dev_err(&master->dev,
2104 master->bus.id, newdev->info.pid);
2108 dev_err(&master->dev,
2110 master->bus.id, newdev->info.pid);
2133 of_i3c_master_add_i2c_boardinfo(struct i3c_master_controller *master,
2137 struct device *dev = &master->dev;
2161 list_add_tail(&boardinfo->node, &master->boardinfo.i2c);
2168 of_i3c_master_add_i3c_boardinfo(struct i3c_master_controller *master,
2172 struct device *dev = &master->dev;
2184 addrstatus = i3c_bus_get_addr_slot_status(&master->bus,
2196 addrstatus = i3c_bus_get_addr_slot_status(&master->bus,
2210 list_add_tail(&boardinfo->node, &master->boardinfo.i3c);
2215 static int of_i3c_master_add_dev(struct i3c_master_controller *master,
2221 if (!master || !node)
2233 ret = of_i3c_master_add_i2c_boardinfo(master, node, reg);
2235 ret = of_i3c_master_add_i3c_boardinfo(master, node, reg);
2240 static int of_populate_i3c_bus(struct i3c_master_controller *master)
2242 struct device *dev = &master->dev;
2252 ret = of_i3c_master_add_dev(master, node);
2265 master->bus.scl_rate.i2c = val;
2268 master->bus.scl_rate.i3c = val;
2276 struct i3c_master_controller *master = i2c_adapter_to_i3c_master(adap);
2281 if (!xfers || !master || nxfers <= 0)
2284 if (!master->ops->i2c_xfers)
2294 i3c_bus_normaluse_lock(&master->bus);
2295 dev = i3c_master_find_i2c_dev_by_addr(master, addr);
2299 ret = master->ops->i2c_xfers(dev, xfers, nxfers);
2300 i3c_bus_normaluse_unlock(&master->bus);
2328 struct i3c_master_controller *master = i2c_adapter_to_i3c_master(adap);
2334 if (i3c_master_find_i2c_dev_by_addr(master, client->addr))
2337 status = i3c_bus_get_addr_slot_status(&master->bus, client->addr);
2341 i3c_bus_set_addr_slot_status(&master->bus, client->addr,
2344 i2cdev = i3c_master_alloc_i2c_dev(master, client->addr,
2351 ret = i3c_master_attach_i2c_dev(master, i2cdev);
2360 i3c_bus_set_addr_slot_status(&master->bus, client->addr,
2368 struct i3c_master_controller *master = i2c_adapter_to_i3c_master(adap);
2371 dev = i3c_master_find_i2c_dev_by_addr(master, client->addr);
2376 i3c_bus_set_addr_slot_status(&master->bus, dev->addr,
2394 struct i3c_master_controller *master;
2406 master = i2c_adapter_to_i3c_master(adap);
2408 i3c_bus_maintenance_lock(&master->bus);
2417 i3c_bus_maintenance_unlock(&master->bus);
2426 static int i3c_master_i2c_adapter_init(struct i3c_master_controller *master)
2428 struct i2c_adapter *adap = i3c_master_to_i2c_adapter(master);
2433 adap->dev.parent = master->dev.parent;
2434 adap->owner = master->dev.parent->driver->owner;
2436 strscpy(adap->name, dev_name(master->dev.parent), sizeof(adap->name));
2450 list_for_each_entry(i2cboardinfo, &master->boardinfo.i2c, node) {
2451 i2cdev = i3c_master_find_i2c_dev_by_addr(master,
2461 static void i3c_master_i2c_adapter_cleanup(struct i3c_master_controller *master)
2465 i2c_del_adapter(&master->i2c);
2467 i3c_bus_for_each_i2cdev(&master->bus, i2cdev)
2471 static void i3c_master_unregister_i3c_devs(struct i3c_master_controller *master)
2475 i3c_bus_for_each_i3cdev(&master->bus, i3cdev) {
2508 struct i3c_master_controller *master = i3c_dev_get_master(dev);
2517 master->ops->recycle_ibi_slot(dev, slot);
2667 * master driver struct_master_controller_ops->recycle_ibi() method.
2700 * i3c_master_register() - register an I3C master
2701 * @master: master used to send frames on the bus
2702 * @parent: the parent device (the one that provides this I3C master
2704 * @ops: the master controller operations
2705 * @secondary: true if you are registering a secondary master. Will return
2720 int i3c_master_register(struct i3c_master_controller *master,
2726 struct i3c_bus *i3cbus = i3c_master_get_bus(master);
2739 master->dev.parent = parent;
2740 master->dev.of_node = of_node_get(parent->of_node);
2741 master->dev.bus = &i3c_bus_type;
2742 master->dev.type = &i3c_masterdev_type;
2743 master->dev.release = i3c_masterdev_release;
2744 master->ops = ops;
2745 master->secondary = secondary;
2746 INIT_LIST_HEAD(&master->boardinfo.i2c);
2747 INIT_LIST_HEAD(&master->boardinfo.i3c);
2749 ret = i3c_bus_init(i3cbus, master->dev.of_node);
2753 device_initialize(&master->dev);
2754 dev_set_name(&master->dev, "i3c-%d", i3cbus->id);
2756 master->dev.dma_mask = parent->dma_mask;
2757 master->dev.coherent_dma_mask = parent->coherent_dma_mask;
2758 master->dev.dma_parms = parent->dma_parms;
2760 ret = of_populate_i3c_bus(master);
2764 list_for_each_entry(i2cbi, &master->boardinfo.i2c, node) {
2791 master->wq = alloc_workqueue("%s", 0, 0, dev_name(parent));
2792 if (!master->wq) {
2797 ret = i3c_master_bus_init(master);
2801 ret = device_add(&master->dev);
2809 ret = i3c_master_i2c_adapter_init(master);
2819 master->init_done = true;
2820 i3c_bus_normaluse_lock(&master->bus);
2821 i3c_master_register_new_i3c_devs(master);
2822 i3c_bus_normaluse_unlock(&master->bus);
2827 device_del(&master->dev);
2830 i3c_master_bus_cleanup(master);
2833 put_device(&master->dev);
2840 * i3c_master_unregister() - unregister an I3C master
2841 * @master: master used to send frames on the bus
2845 void i3c_master_unregister(struct i3c_master_controller *master)
2847 i3c_bus_notify(&master->bus, I3C_NOTIFY_BUS_REMOVE);
2849 i3c_master_i2c_adapter_cleanup(master);
2850 i3c_master_unregister_i3c_devs(master);
2851 i3c_master_bus_cleanup(master);
2852 device_unregister(&master->dev);
2858 struct i3c_master_controller *master;
2863 master = i3c_dev_get_master(dev);
2864 if (!master)
2871 return i3c_master_setdasa_locked(master, dev->info.static_addr,
2879 struct i3c_master_controller *master;
2884 master = i3c_dev_get_master(dev);
2885 if (!master || !xfers)
2888 if (!master->ops->priv_xfers)
2891 return master->ops->priv_xfers(dev, xfers, nxfers);
2896 struct i3c_master_controller *master;
2902 master = i3c_dev_get_master(dev);
2903 ret = master->ops->disable_ibi(dev);
2918 struct i3c_master_controller *master = i3c_dev_get_master(dev);
2924 ret = master->ops->enable_ibi(dev);
2934 struct i3c_master_controller *master = i3c_dev_get_master(dev);
2938 if (!master->ops->request_ibi)
2961 ret = master->ops->request_ibi(dev, req);
2972 struct i3c_master_controller *master = i3c_dev_get_master(dev);
2980 master->ops->free_ibi(dev);