Lines Matching full:slave
114 * Create Slave devices based on Slaves described in in sdw_bus_master_add()
150 struct sdw_slave *slave = dev_to_sdw_dev(dev); in sdw_delete_slave() local
151 struct sdw_bus *bus = slave->bus; in sdw_delete_slave()
155 sdw_slave_debugfs_exit(slave); in sdw_delete_slave()
159 if (slave->dev_num) /* clear dev_num if assigned */ in sdw_delete_slave()
160 clear_bit(slave->dev_num, bus->assigned); in sdw_delete_slave()
162 list_del_init(&slave->node); in sdw_delete_slave()
270 dev_err(bus->dev, "trf on Slave %d failed:%d\n", in sdw_transfer_unlocked()
280 * sdw_transfer() - Synchronous transfer message to a SDW Slave device
298 * sdw_transfer_defer() - Asynchronously transfer message to a SDW Slave device
315 dev_err(bus->dev, "Defer trf on Slave %d failed:%d\n", in sdw_transfer_defer()
324 int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave, in sdw_fill_msg() argument
343 if (slave && !slave->prop.paging_support) in sdw_fill_msg()
354 if (!slave) { in sdw_fill_msg()
355 pr_err("SDW: No slave for paging addr\n"); in sdw_fill_msg()
359 if (!slave->prop.paging_support) { in sdw_fill_msg()
360 dev_err(&slave->dev, in sdw_fill_msg()
381 sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread_no_pm() argument
386 ret = sdw_fill_msg(&msg, slave, addr, count, in sdw_nread_no_pm()
387 slave->dev_num, SDW_MSG_FLAG_READ, val); in sdw_nread_no_pm()
391 return sdw_transfer(slave->bus, &msg); in sdw_nread_no_pm()
395 sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nwrite_no_pm() argument
400 ret = sdw_fill_msg(&msg, slave, addr, count, in sdw_nwrite_no_pm()
401 slave->dev_num, SDW_MSG_FLAG_WRITE, val); in sdw_nwrite_no_pm()
405 return sdw_transfer(slave->bus, &msg); in sdw_nwrite_no_pm()
408 static int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write_no_pm() argument
410 return sdw_nwrite_no_pm(slave, addr, 1, &value); in sdw_write_no_pm()
480 sdw_read_no_pm(struct sdw_slave *slave, u32 addr) in sdw_read_no_pm() argument
485 ret = sdw_nread_no_pm(slave, addr, 1, &buf); in sdw_read_no_pm()
493 * sdw_nread() - Read "n" contiguous SDW Slave registers
494 * @slave: SDW Slave
499 int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread() argument
503 ret = pm_runtime_get_sync(slave->bus->dev); in sdw_nread()
505 pm_runtime_put_noidle(slave->bus->dev); in sdw_nread()
509 ret = sdw_nread_no_pm(slave, addr, count, val); in sdw_nread()
511 pm_runtime_mark_last_busy(slave->bus->dev); in sdw_nread()
512 pm_runtime_put(slave->bus->dev); in sdw_nread()
519 * sdw_nwrite() - Write "n" contiguous SDW Slave registers
520 * @slave: SDW Slave
525 int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nwrite() argument
529 ret = pm_runtime_get_sync(slave->bus->dev); in sdw_nwrite()
531 pm_runtime_put_noidle(slave->bus->dev); in sdw_nwrite()
535 ret = sdw_nwrite_no_pm(slave, addr, count, val); in sdw_nwrite()
537 pm_runtime_mark_last_busy(slave->bus->dev); in sdw_nwrite()
538 pm_runtime_put(slave->bus->dev); in sdw_nwrite()
545 * sdw_read() - Read a SDW Slave register
546 * @slave: SDW Slave
549 int sdw_read(struct sdw_slave *slave, u32 addr) in sdw_read() argument
554 ret = sdw_nread(slave, addr, 1, &buf); in sdw_read()
563 * sdw_write() - Write a SDW Slave register
564 * @slave: SDW Slave
568 int sdw_write(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write() argument
570 return sdw_nwrite(slave, addr, 1, &value); in sdw_write()
581 struct sdw_slave *slave = NULL; in sdw_get_slave() local
583 list_for_each_entry(slave, &bus->slaves, node) { in sdw_get_slave()
584 if (slave->dev_num == i) in sdw_get_slave()
585 return slave; in sdw_get_slave()
591 static int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id) in sdw_compare_devid() argument
593 if (slave->id.mfg_id != id.mfg_id || in sdw_compare_devid()
594 slave->id.part_id != id.part_id || in sdw_compare_devid()
595 slave->id.class_id != id.class_id || in sdw_compare_devid()
596 (slave->id.unique_id != SDW_IGNORED_UNIQUE_ID && in sdw_compare_devid()
597 slave->id.unique_id != id.unique_id)) in sdw_compare_devid()
604 static int sdw_get_device_num(struct sdw_slave *slave) in sdw_get_device_num() argument
608 bit = find_first_zero_bit(slave->bus->assigned, SDW_MAX_DEVICES); in sdw_get_device_num()
615 * Do not update dev_num in Slave data structure here, in sdw_get_device_num()
618 set_bit(bit, slave->bus->assigned); in sdw_get_device_num()
624 static int sdw_assign_device_num(struct sdw_slave *slave) in sdw_assign_device_num() argument
630 if (!slave->dev_num) { in sdw_assign_device_num()
631 if (!slave->dev_num_sticky) { in sdw_assign_device_num()
632 mutex_lock(&slave->bus->bus_lock); in sdw_assign_device_num()
633 dev_num = sdw_get_device_num(slave); in sdw_assign_device_num()
634 mutex_unlock(&slave->bus->bus_lock); in sdw_assign_device_num()
636 dev_err(slave->bus->dev, "Get dev_num failed: %d\n", in sdw_assign_device_num()
640 slave->dev_num = dev_num; in sdw_assign_device_num()
641 slave->dev_num_sticky = dev_num; in sdw_assign_device_num()
644 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
649 dev_dbg(slave->bus->dev, in sdw_assign_device_num()
650 "Slave already registered, reusing dev_num:%d\n", in sdw_assign_device_num()
651 slave->dev_num); in sdw_assign_device_num()
653 /* Clear the slave->dev_num to transfer message on device 0 */ in sdw_assign_device_num()
654 dev_num = slave->dev_num; in sdw_assign_device_num()
655 slave->dev_num = 0; in sdw_assign_device_num()
657 ret = sdw_write_no_pm(slave, SDW_SCP_DEVNUMBER, dev_num); in sdw_assign_device_num()
659 dev_err(&slave->dev, "Program device_num %d failed: %d\n", in sdw_assign_device_num()
665 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
673 dev_dbg(bus->dev, "SDW Slave Addr: %llx\n", addr); in sdw_extract_slave_id()
682 "SDW Slave class_id %x, part_id %x, mfg_id %x, unique_id %x, version %x\n", in sdw_extract_slave_id()
690 struct sdw_slave *slave, *_s; in sdw_program_device_num() local
697 /* No Slave, so use raw xfer api */ in sdw_program_device_num()
726 list_for_each_entry_safe(slave, _s, &bus->slaves, node) { in sdw_program_device_num()
727 if (sdw_compare_devid(slave, id) == 0) { in sdw_program_device_num()
731 * Assign a new dev_num to this Slave and in sdw_program_device_num()
736 ret = sdw_assign_device_num(slave); in sdw_program_device_num()
738 dev_err(slave->bus->dev, in sdw_program_device_num()
752 * add Slave device even if there is no platform in sdw_program_device_num()
759 dev_err(bus->dev, "Slave Entry not found\n"); in sdw_program_device_num()
775 static void sdw_modify_slave_status(struct sdw_slave *slave, in sdw_modify_slave_status() argument
778 mutex_lock(&slave->bus->bus_lock); in sdw_modify_slave_status()
780 dev_vdbg(&slave->dev, in sdw_modify_slave_status()
781 "%s: changing status slave %d status %d new status %d\n", in sdw_modify_slave_status()
782 __func__, slave->dev_num, slave->status, status); in sdw_modify_slave_status()
785 dev_dbg(&slave->dev, in sdw_modify_slave_status()
786 "%s: initializing completion for Slave %d\n", in sdw_modify_slave_status()
787 __func__, slave->dev_num); in sdw_modify_slave_status()
789 init_completion(&slave->enumeration_complete); in sdw_modify_slave_status()
790 init_completion(&slave->initialization_complete); in sdw_modify_slave_status()
793 (slave->status == SDW_SLAVE_UNATTACHED)) { in sdw_modify_slave_status()
794 dev_dbg(&slave->dev, in sdw_modify_slave_status()
795 "%s: signaling completion for Slave %d\n", in sdw_modify_slave_status()
796 __func__, slave->dev_num); in sdw_modify_slave_status()
798 complete(&slave->enumeration_complete); in sdw_modify_slave_status()
800 slave->status = status; in sdw_modify_slave_status()
801 mutex_unlock(&slave->bus->bus_lock); in sdw_modify_slave_status()
804 static enum sdw_clk_stop_mode sdw_get_clk_stop_mode(struct sdw_slave *slave) in sdw_get_clk_stop_mode() argument
809 * Query for clock stop mode if Slave implements in sdw_get_clk_stop_mode()
812 if (slave->ops && slave->ops->get_clk_stop_mode) { in sdw_get_clk_stop_mode()
813 mode = slave->ops->get_clk_stop_mode(slave); in sdw_get_clk_stop_mode()
815 if (slave->prop.clk_stop_mode1) in sdw_get_clk_stop_mode()
824 static int sdw_slave_clk_stop_callback(struct sdw_slave *slave, in sdw_slave_clk_stop_callback() argument
830 if (slave->ops && slave->ops->clk_stop) { in sdw_slave_clk_stop_callback()
831 ret = slave->ops->clk_stop(slave, mode, type); in sdw_slave_clk_stop_callback()
833 dev_err(&slave->dev, in sdw_slave_clk_stop_callback()
842 static int sdw_slave_clk_stop_prepare(struct sdw_slave *slave, in sdw_slave_clk_stop_prepare() argument
850 wake_en = slave->prop.wake_capable; in sdw_slave_clk_stop_prepare()
861 val = sdw_read_no_pm(slave, SDW_SCP_SYSTEMCTRL); in sdw_slave_clk_stop_prepare()
866 ret = sdw_write_no_pm(slave, SDW_SCP_SYSTEMCTRL, val); in sdw_slave_clk_stop_prepare()
869 dev_err(&slave->dev, in sdw_slave_clk_stop_prepare()
870 "Clock Stop prepare failed for slave: %d", ret); in sdw_slave_clk_stop_prepare()
884 dev_info(bus->dev, "clock stop prep/de-prep done slave:%d", in sdw_bus_wait_for_clk_prep_deprep()
893 dev_err(bus->dev, "clock stop prep/de-prep failed slave:%d", in sdw_bus_wait_for_clk_prep_deprep()
900 * sdw_bus_prep_clk_stop: prepare Slave(s) for clock stop
904 * Query Slave for clock stop mode and prepare for that mode.
910 struct sdw_slave *slave; in sdw_bus_prep_clk_stop() local
916 * each Slave and then wait for all Slave(s) to be in sdw_bus_prep_clk_stop()
919 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
920 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
923 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
924 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
927 /* Identify if Slave(s) are available on Bus */ in sdw_bus_prep_clk_stop()
930 slave_mode = sdw_get_clk_stop_mode(slave); in sdw_bus_prep_clk_stop()
931 slave->curr_clk_stop_mode = slave_mode; in sdw_bus_prep_clk_stop()
933 ret = sdw_slave_clk_stop_callback(slave, slave_mode, in sdw_bus_prep_clk_stop()
936 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
941 ret = sdw_slave_clk_stop_prepare(slave, in sdw_bus_prep_clk_stop()
944 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
960 /* Don't need to inform slaves if there is no slave attached */ in sdw_bus_prep_clk_stop()
965 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
966 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
969 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
970 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
973 slave_mode = slave->curr_clk_stop_mode; in sdw_bus_prep_clk_stop()
976 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
981 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
1036 struct sdw_slave *slave; in sdw_bus_exit_clk_stop() local
1042 * each Slave and then wait for all Slave(s) to be in sdw_bus_exit_clk_stop()
1045 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1046 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1049 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1050 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1053 /* Identify if Slave(s) are available on Bus */ in sdw_bus_exit_clk_stop()
1056 mode = slave->curr_clk_stop_mode; in sdw_bus_exit_clk_stop()
1063 ret = sdw_slave_clk_stop_callback(slave, mode, in sdw_bus_exit_clk_stop()
1066 dev_warn(&slave->dev, in sdw_bus_exit_clk_stop()
1069 ret = sdw_slave_clk_stop_prepare(slave, mode, in sdw_bus_exit_clk_stop()
1073 dev_warn(&slave->dev, in sdw_bus_exit_clk_stop()
1081 * Don't need to call slave callback function if there is no slave in sdw_bus_exit_clk_stop()
1087 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1088 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1091 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1092 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1095 mode = slave->curr_clk_stop_mode; in sdw_bus_exit_clk_stop()
1096 sdw_slave_clk_stop_callback(slave, mode, in sdw_bus_exit_clk_stop()
1104 int sdw_configure_dpn_intr(struct sdw_slave *slave, in sdw_configure_dpn_intr() argument
1111 if (slave->bus->params.s_data_mode != SDW_PORT_DATA_MODE_NORMAL) { in sdw_configure_dpn_intr()
1112 dev_dbg(&slave->dev, "TEST FAIL interrupt %s\n", in sdw_configure_dpn_intr()
1128 ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); in sdw_configure_dpn_intr()
1130 dev_err(slave->bus->dev, in sdw_configure_dpn_intr()
1136 static int sdw_slave_set_frequency(struct sdw_slave *slave) in sdw_slave_set_frequency() argument
1138 u32 mclk_freq = slave->bus->prop.mclk_freq; in sdw_slave_set_frequency()
1139 u32 curr_freq = slave->bus->params.curr_dr_freq >> 1; in sdw_slave_set_frequency()
1150 if (!slave->id.class_id) in sdw_slave_set_frequency()
1154 dev_err(&slave->dev, in sdw_slave_set_frequency()
1184 dev_err(&slave->dev, in sdw_slave_set_frequency()
1191 dev_err(&slave->dev, in sdw_slave_set_frequency()
1206 dev_err(&slave->dev, in sdw_slave_set_frequency()
1213 ret = sdw_write(slave, SDW_SCP_BUS_CLOCK_BASE, base); in sdw_slave_set_frequency()
1215 dev_err(&slave->dev, in sdw_slave_set_frequency()
1221 ret = sdw_write(slave, SDW_SCP_BUSCLOCK_SCALE_B0, scale_index); in sdw_slave_set_frequency()
1223 dev_err(&slave->dev, in sdw_slave_set_frequency()
1227 ret = sdw_write(slave, SDW_SCP_BUSCLOCK_SCALE_B1, scale_index); in sdw_slave_set_frequency()
1229 dev_err(&slave->dev, in sdw_slave_set_frequency()
1232 dev_dbg(&slave->dev, in sdw_slave_set_frequency()
1239 static int sdw_initialize_slave(struct sdw_slave *slave) in sdw_initialize_slave() argument
1241 struct sdw_slave_prop *prop = &slave->prop; in sdw_initialize_slave()
1245 ret = sdw_slave_set_frequency(slave); in sdw_initialize_slave()
1256 val = slave->prop.scp_int1_mask; in sdw_initialize_slave()
1259 ret = sdw_update(slave, SDW_SCP_INTMASK1, val, val); in sdw_initialize_slave()
1261 dev_err(slave->bus->dev, in sdw_initialize_slave()
1267 if (!slave->prop.dp0_prop) in sdw_initialize_slave()
1274 ret = sdw_update(slave, SDW_DP0_INTMASK, val, val); in sdw_initialize_slave()
1276 dev_err(slave->bus->dev, in sdw_initialize_slave()
1281 static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status) in sdw_handle_dp0_interrupt() argument
1286 status = sdw_read(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1288 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1295 dev_err(&slave->dev, "Test fail for port 0\n"); in sdw_handle_dp0_interrupt()
1305 complete(&slave->port_ready[0]); in sdw_handle_dp0_interrupt()
1310 dev_err(&slave->dev, "BRA failed\n"); in sdw_handle_dp0_interrupt()
1323 ret = sdw_write(slave, SDW_DP0_INT, clear); in sdw_handle_dp0_interrupt()
1325 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1331 status2 = sdw_read(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1333 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1345 dev_warn(slave->bus->dev, "Reached MAX_RETRY on DP0 read\n"); in sdw_handle_dp0_interrupt()
1350 static int sdw_handle_port_interrupt(struct sdw_slave *slave, in sdw_handle_port_interrupt() argument
1358 return sdw_handle_dp0_interrupt(slave, slave_status); in sdw_handle_port_interrupt()
1361 status = sdw_read(slave, addr); in sdw_handle_port_interrupt()
1363 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1371 dev_err(&slave->dev, "Test fail for port:%d\n", port); in sdw_handle_port_interrupt()
1380 complete(&slave->port_ready[port]); in sdw_handle_port_interrupt()
1393 ret = sdw_write(slave, addr, clear); in sdw_handle_port_interrupt()
1395 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1401 status2 = sdw_read(slave, addr); in sdw_handle_port_interrupt()
1403 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1415 dev_warn(slave->bus->dev, "Reached MAX_RETRY on port read"); in sdw_handle_port_interrupt()
1420 static int sdw_handle_slave_alerts(struct sdw_slave *slave) in sdw_handle_slave_alerts() argument
1431 sdw_modify_slave_status(slave, SDW_SLAVE_ALERT); in sdw_handle_slave_alerts()
1433 ret = pm_runtime_get_sync(&slave->dev); in sdw_handle_slave_alerts()
1435 dev_err(&slave->dev, "Failed to resume device: %d\n", ret); in sdw_handle_slave_alerts()
1436 pm_runtime_put_noidle(slave->bus->dev); in sdw_handle_slave_alerts()
1441 ret = sdw_read(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1443 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1449 ret = sdw_nread(slave, SDW_SCP_INTSTAT2, 2, buf2); in sdw_handle_slave_alerts()
1451 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1458 * Check parity, bus clash and Slave (impl defined) in sdw_handle_slave_alerts()
1462 parity_check = slave->prop.scp_int1_mask & SDW_SCP_INT1_PARITY; in sdw_handle_slave_alerts()
1463 parity_quirk = !slave->first_interrupt_done && in sdw_handle_slave_alerts()
1464 (slave->prop.quirks & SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY); in sdw_handle_slave_alerts()
1467 dev_err(&slave->dev, "Parity error detected\n"); in sdw_handle_slave_alerts()
1472 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_BUS_CLASH) in sdw_handle_slave_alerts()
1473 dev_err(&slave->dev, "Bus clash detected\n"); in sdw_handle_slave_alerts()
1485 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_IMPL_DEF) { in sdw_handle_slave_alerts()
1486 dev_dbg(&slave->dev, "Slave impl defined interrupt\n"); in sdw_handle_slave_alerts()
1498 sdw_handle_port_interrupt(slave, bit, in sdw_handle_slave_alerts()
1508 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1520 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1526 /* Update the Slave driver */ in sdw_handle_slave_alerts()
1527 if (slave_notify && slave->ops && in sdw_handle_slave_alerts()
1528 slave->ops->interrupt_callback) { in sdw_handle_slave_alerts()
1533 slave->ops->interrupt_callback(slave, &slave_intr); in sdw_handle_slave_alerts()
1537 ret = sdw_write(slave, SDW_SCP_INT1, clear); in sdw_handle_slave_alerts()
1539 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1545 slave->first_interrupt_done = true; in sdw_handle_slave_alerts()
1551 ret = sdw_read(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1553 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1559 ret = sdw_nread(slave, SDW_SCP_INTSTAT2, 2, _buf2); in sdw_handle_slave_alerts()
1561 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1573 * Exit loop if Slave is continuously in ALERT state even in sdw_handle_slave_alerts()
1582 dev_warn(slave->bus->dev, "Reached MAX_RETRY on alert read\n"); in sdw_handle_slave_alerts()
1585 pm_runtime_mark_last_busy(&slave->dev); in sdw_handle_slave_alerts()
1586 pm_runtime_put_autosuspend(&slave->dev); in sdw_handle_slave_alerts()
1591 static int sdw_update_slave_status(struct sdw_slave *slave, in sdw_update_slave_status() argument
1596 if (!slave->probed) { in sdw_update_slave_status()
1598 * the slave status update is typically handled in an in sdw_update_slave_status()
1605 time = wait_for_completion_timeout(&slave->probe_complete, in sdw_update_slave_status()
1608 dev_err(&slave->dev, "Probe not complete, timed out\n"); in sdw_update_slave_status()
1613 if (!slave->ops || !slave->ops->update_status) in sdw_update_slave_status()
1616 return slave->ops->update_status(slave, status); in sdw_update_slave_status()
1620 * sdw_handle_slave_status() - Handle Slave status
1622 * @status: Status for all Slave(s)
1628 struct sdw_slave *slave; in sdw_handle_slave_status() local
1641 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1642 if (!slave) in sdw_handle_slave_status()
1646 slave->status != SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1647 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1651 dev_dbg(bus->dev, "Slave attached, programming device number\n"); in sdw_handle_slave_status()
1654 dev_err(bus->dev, "Slave attach failed: %d\n", ret); in sdw_handle_slave_status()
1662 /* Continue to check other slave statuses */ in sdw_handle_slave_status()
1671 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1672 if (!slave) in sdw_handle_slave_status()
1679 if (slave->status == SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1682 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1686 ret = sdw_handle_slave_alerts(slave); in sdw_handle_slave_status()
1689 "Slave %d alert handling failed: %d\n", in sdw_handle_slave_status()
1694 if (slave->status == SDW_SLAVE_ATTACHED) in sdw_handle_slave_status()
1697 prev_status = slave->status; in sdw_handle_slave_status()
1698 sdw_modify_slave_status(slave, SDW_SLAVE_ATTACHED); in sdw_handle_slave_status()
1705 ret = sdw_initialize_slave(slave); in sdw_handle_slave_status()
1708 "Slave %d initialization failed: %d\n", in sdw_handle_slave_status()
1714 dev_err(bus->dev, "Invalid slave %d status:%d\n", in sdw_handle_slave_status()
1719 ret = sdw_update_slave_status(slave, status[i]); in sdw_handle_slave_status()
1721 dev_err(slave->bus->dev, in sdw_handle_slave_status()
1722 "Update Slave status failed:%d\n", ret); in sdw_handle_slave_status()
1724 complete(&slave->initialization_complete); in sdw_handle_slave_status()
1733 struct sdw_slave *slave; in sdw_clear_slave_status() local
1745 slave = sdw_get_slave(bus, i); in sdw_clear_slave_status()
1746 if (!slave) in sdw_clear_slave_status()
1749 if (slave->status != SDW_SLAVE_UNATTACHED) { in sdw_clear_slave_status()
1750 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
1751 slave->first_interrupt_done = false; in sdw_clear_slave_status()
1755 slave->unattach_request = request; in sdw_clear_slave_status()