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 %s addr %x count %d\n", in sdw_transfer_unlocked()
282 * sdw_transfer() - Synchronous transfer message to a SDW Slave device
300 * sdw_transfer_defer() - Asynchronously transfer message to a SDW Slave device
317 dev_err(bus->dev, "Defer trf on Slave %d failed:%d\n", in sdw_transfer_defer()
326 int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave, in sdw_fill_msg() argument
345 if (slave && !slave->prop.paging_support) in sdw_fill_msg()
356 if (!slave) { in sdw_fill_msg()
357 pr_err("SDW: No slave for paging addr\n"); in sdw_fill_msg()
361 if (!slave->prop.paging_support) { in sdw_fill_msg()
362 dev_err(&slave->dev, in sdw_fill_msg()
383 sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread_no_pm() argument
388 ret = sdw_fill_msg(&msg, slave, addr, count, in sdw_nread_no_pm()
389 slave->dev_num, SDW_MSG_FLAG_READ, val); in sdw_nread_no_pm()
393 ret = sdw_transfer(slave->bus, &msg); in sdw_nread_no_pm()
394 if (slave->is_mockup_device) in sdw_nread_no_pm()
400 sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) in sdw_nwrite_no_pm() argument
405 ret = sdw_fill_msg(&msg, slave, addr, count, in sdw_nwrite_no_pm()
406 slave->dev_num, SDW_MSG_FLAG_WRITE, (u8 *)val); in sdw_nwrite_no_pm()
410 ret = sdw_transfer(slave->bus, &msg); in sdw_nwrite_no_pm()
411 if (slave->is_mockup_device) in sdw_nwrite_no_pm()
416 int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write_no_pm() argument
418 return sdw_nwrite_no_pm(slave, addr, 1, &value); in sdw_write_no_pm()
488 int sdw_read_no_pm(struct sdw_slave *slave, u32 addr) in sdw_read_no_pm() argument
493 ret = sdw_nread_no_pm(slave, addr, 1, &buf); in sdw_read_no_pm()
501 int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) in sdw_update_no_pm() argument
505 tmp = sdw_read_no_pm(slave, addr); in sdw_update_no_pm()
510 return sdw_write_no_pm(slave, addr, tmp); in sdw_update_no_pm()
514 /* Read-Modify-Write Slave register */
515 int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) in sdw_update() argument
519 tmp = sdw_read(slave, addr); in sdw_update()
524 return sdw_write(slave, addr, tmp); in sdw_update()
529 * sdw_nread() - Read "n" contiguous SDW Slave registers
530 * @slave: SDW Slave
535 int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread() argument
539 ret = pm_runtime_get_sync(&slave->dev); in sdw_nread()
541 pm_runtime_put_noidle(&slave->dev); in sdw_nread()
545 ret = sdw_nread_no_pm(slave, addr, count, val); in sdw_nread()
547 pm_runtime_mark_last_busy(&slave->dev); in sdw_nread()
548 pm_runtime_put(&slave->dev); in sdw_nread()
555 * sdw_nwrite() - Write "n" contiguous SDW Slave registers
556 * @slave: SDW Slave
561 int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) in sdw_nwrite() argument
565 ret = pm_runtime_get_sync(&slave->dev); in sdw_nwrite()
567 pm_runtime_put_noidle(&slave->dev); in sdw_nwrite()
571 ret = sdw_nwrite_no_pm(slave, addr, count, val); in sdw_nwrite()
573 pm_runtime_mark_last_busy(&slave->dev); in sdw_nwrite()
574 pm_runtime_put(&slave->dev); in sdw_nwrite()
581 * sdw_read() - Read a SDW Slave register
582 * @slave: SDW Slave
585 int sdw_read(struct sdw_slave *slave, u32 addr) in sdw_read() argument
590 ret = sdw_nread(slave, addr, 1, &buf); in sdw_read()
599 * sdw_write() - Write a SDW Slave register
600 * @slave: SDW Slave
604 int sdw_write(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write() argument
606 return sdw_nwrite(slave, addr, 1, &value); in sdw_write()
617 struct sdw_slave *slave; in sdw_get_slave() local
619 list_for_each_entry(slave, &bus->slaves, node) { in sdw_get_slave()
620 if (slave->dev_num == i) in sdw_get_slave()
621 return slave; in sdw_get_slave()
627 int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id) in sdw_compare_devid() argument
629 if (slave->id.mfg_id != id.mfg_id || in sdw_compare_devid()
630 slave->id.part_id != id.part_id || in sdw_compare_devid()
631 slave->id.class_id != id.class_id || in sdw_compare_devid()
632 (slave->id.unique_id != SDW_IGNORED_UNIQUE_ID && in sdw_compare_devid()
633 slave->id.unique_id != id.unique_id)) in sdw_compare_devid()
641 static int sdw_get_device_num(struct sdw_slave *slave) in sdw_get_device_num() argument
645 bit = find_first_zero_bit(slave->bus->assigned, SDW_MAX_DEVICES); in sdw_get_device_num()
652 * Do not update dev_num in Slave data structure here, in sdw_get_device_num()
655 set_bit(bit, slave->bus->assigned); in sdw_get_device_num()
661 static int sdw_assign_device_num(struct sdw_slave *slave) in sdw_assign_device_num() argument
663 struct sdw_bus *bus = slave->bus; in sdw_assign_device_num()
668 if (!slave->dev_num) { in sdw_assign_device_num()
669 if (!slave->dev_num_sticky) { in sdw_assign_device_num()
670 mutex_lock(&slave->bus->bus_lock); in sdw_assign_device_num()
671 dev_num = sdw_get_device_num(slave); in sdw_assign_device_num()
672 mutex_unlock(&slave->bus->bus_lock); in sdw_assign_device_num()
678 slave->dev_num = dev_num; in sdw_assign_device_num()
679 slave->dev_num_sticky = dev_num; in sdw_assign_device_num()
682 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
688 "Slave already registered, reusing dev_num:%d\n", in sdw_assign_device_num()
689 slave->dev_num); in sdw_assign_device_num()
691 /* Clear the slave->dev_num to transfer message on device 0 */ in sdw_assign_device_num()
692 dev_num = slave->dev_num; in sdw_assign_device_num()
693 slave->dev_num = 0; in sdw_assign_device_num()
695 ret = sdw_write_no_pm(slave, SDW_SCP_DEVNUMBER, dev_num); in sdw_assign_device_num()
703 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
711 dev_dbg(bus->dev, "SDW Slave Addr: %llx\n", addr); in sdw_extract_slave_id()
720 "SDW Slave class_id 0x%02x, mfg_id 0x%04x, part_id 0x%04x, unique_id 0x%x, version 0x%x\n", in sdw_extract_slave_id()
728 struct sdw_slave *slave, *_s; in sdw_program_device_num() local
735 /* No Slave, so use raw xfer api */ in sdw_program_device_num()
765 list_for_each_entry_safe(slave, _s, &bus->slaves, node) { in sdw_program_device_num()
766 if (sdw_compare_devid(slave, id) == 0) { in sdw_program_device_num()
770 * Assign a new dev_num to this Slave and in sdw_program_device_num()
775 ret = sdw_assign_device_num(slave); in sdw_program_device_num()
791 * add Slave device even if there is no platform in sdw_program_device_num()
798 dev_err(bus->dev, "Slave Entry not found\n"); in sdw_program_device_num()
814 static void sdw_modify_slave_status(struct sdw_slave *slave, in sdw_modify_slave_status() argument
817 struct sdw_bus *bus = slave->bus; in sdw_modify_slave_status()
822 "%s: changing status slave %d status %d new status %d\n", in sdw_modify_slave_status()
823 __func__, slave->dev_num, slave->status, status); in sdw_modify_slave_status()
826 dev_dbg(&slave->dev, in sdw_modify_slave_status()
827 "%s: initializing enumeration and init completion for Slave %d\n", in sdw_modify_slave_status()
828 __func__, slave->dev_num); in sdw_modify_slave_status()
830 init_completion(&slave->enumeration_complete); in sdw_modify_slave_status()
831 init_completion(&slave->initialization_complete); in sdw_modify_slave_status()
834 (slave->status == SDW_SLAVE_UNATTACHED)) { in sdw_modify_slave_status()
835 dev_dbg(&slave->dev, in sdw_modify_slave_status()
836 "%s: signaling enumeration completion for Slave %d\n", in sdw_modify_slave_status()
837 __func__, slave->dev_num); in sdw_modify_slave_status()
839 complete(&slave->enumeration_complete); in sdw_modify_slave_status()
841 slave->status = status; in sdw_modify_slave_status()
845 static int sdw_slave_clk_stop_callback(struct sdw_slave *slave, in sdw_slave_clk_stop_callback() argument
851 if (slave->ops && slave->ops->clk_stop) { in sdw_slave_clk_stop_callback()
852 ret = slave->ops->clk_stop(slave, mode, type); in sdw_slave_clk_stop_callback()
860 static int sdw_slave_clk_stop_prepare(struct sdw_slave *slave, in sdw_slave_clk_stop_prepare() argument
868 wake_en = slave->prop.wake_capable; in sdw_slave_clk_stop_prepare()
879 ret = sdw_read_no_pm(slave, SDW_SCP_SYSTEMCTRL); in sdw_slave_clk_stop_prepare()
882 dev_err(&slave->dev, "SDW_SCP_SYSTEMCTRL read failed:%d\n", ret); in sdw_slave_clk_stop_prepare()
889 ret = sdw_write_no_pm(slave, SDW_SCP_SYSTEMCTRL, val); in sdw_slave_clk_stop_prepare()
892 dev_err(&slave->dev, "SDW_SCP_SYSTEMCTRL write failed:%d\n", ret); in sdw_slave_clk_stop_prepare()
911 dev_dbg(bus->dev, "clock stop prep/de-prep done slave:%d\n", in sdw_bus_wait_for_clk_prep_deprep()
920 dev_err(bus->dev, "clock stop prep/de-prep failed slave:%d\n", in sdw_bus_wait_for_clk_prep_deprep()
927 * sdw_bus_prep_clk_stop: prepare Slave(s) for clock stop
931 * Query Slave for clock stop mode and prepare for that mode.
936 struct sdw_slave *slave; in sdw_bus_prep_clk_stop() local
942 * each Slave and then wait for all Slave(s) to be in sdw_bus_prep_clk_stop()
944 * If one of the Slave devices has lost sync and in sdw_bus_prep_clk_stop()
948 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
949 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
952 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
953 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
956 /* Identify if Slave(s) are available on Bus */ in sdw_bus_prep_clk_stop()
959 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
963 dev_err(&slave->dev, "clock stop pre-prepare cb failed:%d\n", ret); in sdw_bus_prep_clk_stop()
967 /* Only prepare a Slave device if needed */ in sdw_bus_prep_clk_stop()
968 if (!slave->prop.simple_clk_stop_capable) { in sdw_bus_prep_clk_stop()
971 ret = sdw_slave_clk_stop_prepare(slave, in sdw_bus_prep_clk_stop()
975 dev_err(&slave->dev, "clock stop prepare failed:%d\n", ret); in sdw_bus_prep_clk_stop()
981 /* Skip remaining clock stop preparation if no Slave is attached */ in sdw_bus_prep_clk_stop()
993 * if there are no Slave devices present and the reply is in sdw_bus_prep_clk_stop()
1003 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
1004 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
1007 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
1008 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
1011 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
1016 dev_err(&slave->dev, "clock stop post-prepare cb failed:%d\n", ret); in sdw_bus_prep_clk_stop()
1065 struct sdw_slave *slave; in sdw_bus_exit_clk_stop() local
1071 * each Slave and then wait for all Slave(s) to be in sdw_bus_exit_clk_stop()
1074 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1075 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1078 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1079 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1082 /* Identify if Slave(s) are available on Bus */ in sdw_bus_exit_clk_stop()
1085 ret = sdw_slave_clk_stop_callback(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1088 dev_warn(&slave->dev, "clock stop pre-deprepare cb failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1090 /* Only de-prepare a Slave device if needed */ in sdw_bus_exit_clk_stop()
1091 if (!slave->prop.simple_clk_stop_capable) { in sdw_bus_exit_clk_stop()
1094 ret = sdw_slave_clk_stop_prepare(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1098 dev_warn(&slave->dev, "clock stop deprepare failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1102 /* Skip remaining clock stop de-preparation if no Slave is attached */ in sdw_bus_exit_clk_stop()
1113 dev_warn(&slave->dev, "clock stop deprepare wait failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1116 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1117 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1120 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1121 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1124 ret = sdw_slave_clk_stop_callback(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1127 dev_warn(&slave->dev, "clock stop post-deprepare cb failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1134 int sdw_configure_dpn_intr(struct sdw_slave *slave, in sdw_configure_dpn_intr() argument
1141 if (slave->bus->params.s_data_mode != SDW_PORT_DATA_MODE_NORMAL) { in sdw_configure_dpn_intr()
1142 dev_dbg(&slave->dev, "TEST FAIL interrupt %s\n", in sdw_configure_dpn_intr()
1158 ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); in sdw_configure_dpn_intr()
1160 dev_err(&slave->dev, in sdw_configure_dpn_intr()
1166 static int sdw_slave_set_frequency(struct sdw_slave *slave) in sdw_slave_set_frequency() argument
1168 u32 mclk_freq = slave->bus->prop.mclk_freq; in sdw_slave_set_frequency()
1169 u32 curr_freq = slave->bus->params.curr_dr_freq >> 1; in sdw_slave_set_frequency()
1180 if (!slave->id.class_id) in sdw_slave_set_frequency()
1184 dev_err(&slave->dev, in sdw_slave_set_frequency()
1214 dev_err(&slave->dev, in sdw_slave_set_frequency()
1221 dev_err(&slave->dev, in sdw_slave_set_frequency()
1236 dev_err(&slave->dev, in sdw_slave_set_frequency()
1243 ret = sdw_write_no_pm(slave, SDW_SCP_BUS_CLOCK_BASE, base); in sdw_slave_set_frequency()
1245 dev_err(&slave->dev, in sdw_slave_set_frequency()
1251 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B0, scale_index); in sdw_slave_set_frequency()
1253 dev_err(&slave->dev, in sdw_slave_set_frequency()
1257 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B1, scale_index); in sdw_slave_set_frequency()
1259 dev_err(&slave->dev, in sdw_slave_set_frequency()
1262 dev_dbg(&slave->dev, in sdw_slave_set_frequency()
1269 static int sdw_initialize_slave(struct sdw_slave *slave) in sdw_initialize_slave() argument
1271 struct sdw_slave_prop *prop = &slave->prop; in sdw_initialize_slave()
1276 ret = sdw_slave_set_frequency(slave); in sdw_initialize_slave()
1280 if (slave->bus->prop.quirks & SDW_MASTER_QUIRKS_CLEAR_INITIAL_CLASH) { in sdw_initialize_slave()
1282 status = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_initialize_slave()
1284 dev_err(&slave->dev, in sdw_initialize_slave()
1289 dev_warn(&slave->dev, "Bus clash detected before INT mask is enabled\n"); in sdw_initialize_slave()
1290 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, SDW_SCP_INT1_BUS_CLASH); in sdw_initialize_slave()
1292 dev_err(&slave->dev, in sdw_initialize_slave()
1298 if ((slave->bus->prop.quirks & SDW_MASTER_QUIRKS_CLEAR_INITIAL_PARITY) && in sdw_initialize_slave()
1299 !(slave->prop.quirks & SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY)) { in sdw_initialize_slave()
1301 status = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_initialize_slave()
1303 dev_err(&slave->dev, in sdw_initialize_slave()
1308 dev_warn(&slave->dev, "PARITY error detected before INT mask is enabled\n"); in sdw_initialize_slave()
1309 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, SDW_SCP_INT1_PARITY); in sdw_initialize_slave()
1311 dev_err(&slave->dev, in sdw_initialize_slave()
1325 val = slave->prop.scp_int1_mask; in sdw_initialize_slave()
1328 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, val, val); in sdw_initialize_slave()
1330 dev_err(&slave->dev, in sdw_initialize_slave()
1336 if (!slave->prop.dp0_prop) in sdw_initialize_slave()
1343 ret = sdw_update_no_pm(slave, SDW_DP0_INTMASK, val, val); in sdw_initialize_slave()
1345 dev_err(&slave->dev, in sdw_initialize_slave()
1350 static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status) in sdw_handle_dp0_interrupt() argument
1355 status = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1357 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1366 dev_err(&slave->dev, "Test fail for port 0\n"); in sdw_handle_dp0_interrupt()
1376 complete(&slave->port_ready[0]); in sdw_handle_dp0_interrupt()
1381 dev_err(&slave->dev, "BRA failed\n"); in sdw_handle_dp0_interrupt()
1394 ret = sdw_write_no_pm(slave, SDW_DP0_INT, clear); in sdw_handle_dp0_interrupt()
1396 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1402 status2 = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1404 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1417 dev_warn(&slave->dev, "Reached MAX_RETRY on DP0 read\n"); in sdw_handle_dp0_interrupt()
1422 static int sdw_handle_port_interrupt(struct sdw_slave *slave, in sdw_handle_port_interrupt() argument
1430 return sdw_handle_dp0_interrupt(slave, slave_status); in sdw_handle_port_interrupt()
1433 status = sdw_read_no_pm(slave, addr); in sdw_handle_port_interrupt()
1435 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1445 dev_err(&slave->dev, "Test fail for port:%d\n", port); in sdw_handle_port_interrupt()
1454 complete(&slave->port_ready[port]); in sdw_handle_port_interrupt()
1467 ret = sdw_write_no_pm(slave, addr, clear); in sdw_handle_port_interrupt()
1469 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1475 status2 = sdw_read_no_pm(slave, addr); in sdw_handle_port_interrupt()
1477 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1490 dev_warn(&slave->dev, "Reached MAX_RETRY on port read"); in sdw_handle_port_interrupt()
1495 static int sdw_handle_slave_alerts(struct sdw_slave *slave) in sdw_handle_slave_alerts() argument
1507 sdw_modify_slave_status(slave, SDW_SLAVE_ALERT); in sdw_handle_slave_alerts()
1509 ret = pm_runtime_get_sync(&slave->dev); in sdw_handle_slave_alerts()
1511 dev_err(&slave->dev, "Failed to resume device: %d\n", ret); in sdw_handle_slave_alerts()
1512 pm_runtime_put_noidle(&slave->dev); in sdw_handle_slave_alerts()
1517 ret = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1519 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1525 ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, buf2); in sdw_handle_slave_alerts()
1527 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1532 if (slave->prop.is_sdca) { in sdw_handle_slave_alerts()
1533 ret = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_slave_alerts()
1535 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1546 * Check parity, bus clash and Slave (impl defined) in sdw_handle_slave_alerts()
1550 parity_check = slave->prop.scp_int1_mask & SDW_SCP_INT1_PARITY; in sdw_handle_slave_alerts()
1551 parity_quirk = !slave->first_interrupt_done && in sdw_handle_slave_alerts()
1552 (slave->prop.quirks & SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY); in sdw_handle_slave_alerts()
1555 dev_err(&slave->dev, "Parity error detected\n"); in sdw_handle_slave_alerts()
1560 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_BUS_CLASH) in sdw_handle_slave_alerts()
1561 dev_err(&slave->dev, "Bus clash detected\n"); in sdw_handle_slave_alerts()
1573 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_IMPL_DEF) { in sdw_handle_slave_alerts()
1574 dev_dbg(&slave->dev, "Slave impl defined interrupt\n"); in sdw_handle_slave_alerts()
1590 sdw_handle_port_interrupt(slave, bit, in sdw_handle_slave_alerts()
1600 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1612 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1618 /* Update the Slave driver */ in sdw_handle_slave_alerts()
1619 if (slave_notify && slave->ops && in sdw_handle_slave_alerts()
1620 slave->ops->interrupt_callback) { in sdw_handle_slave_alerts()
1626 slave->ops->interrupt_callback(slave, &slave_intr); in sdw_handle_slave_alerts()
1630 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, clear); in sdw_handle_slave_alerts()
1632 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1638 slave->first_interrupt_done = true; in sdw_handle_slave_alerts()
1644 ret = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1646 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1652 ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, _buf2); in sdw_handle_slave_alerts()
1654 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1659 if (slave->prop.is_sdca) { in sdw_handle_slave_alerts()
1660 ret = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_slave_alerts()
1662 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1679 * Exit loop if Slave is continuously in ALERT state even in sdw_handle_slave_alerts()
1688 dev_warn(&slave->dev, "Reached MAX_RETRY on alert read\n"); in sdw_handle_slave_alerts()
1691 pm_runtime_mark_last_busy(&slave->dev); in sdw_handle_slave_alerts()
1692 pm_runtime_put_autosuspend(&slave->dev); in sdw_handle_slave_alerts()
1697 static int sdw_update_slave_status(struct sdw_slave *slave, in sdw_update_slave_status() argument
1702 if (!slave->probed) { in sdw_update_slave_status()
1704 * the slave status update is typically handled in an in sdw_update_slave_status()
1711 time = wait_for_completion_timeout(&slave->probe_complete, in sdw_update_slave_status()
1714 dev_err(&slave->dev, "Probe not complete, timed out\n"); in sdw_update_slave_status()
1719 if (!slave->ops || !slave->ops->update_status) in sdw_update_slave_status()
1722 return slave->ops->update_status(slave, status); in sdw_update_slave_status()
1726 * sdw_handle_slave_status() - Handle Slave status
1728 * @status: Status for all Slave(s)
1734 struct sdw_slave *slave; in sdw_handle_slave_status() local
1747 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1748 if (!slave) in sdw_handle_slave_status()
1752 slave->status != SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1753 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1757 dev_dbg(bus->dev, "Slave attached, programming device number\n"); in sdw_handle_slave_status()
1760 dev_err(bus->dev, "Slave attach failed: %d\n", ret); in sdw_handle_slave_status()
1768 /* Continue to check other slave statuses */ in sdw_handle_slave_status()
1777 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1778 if (!slave) in sdw_handle_slave_status()
1785 if (slave->status == SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1788 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1792 ret = sdw_handle_slave_alerts(slave); in sdw_handle_slave_status()
1794 dev_err(&slave->dev, in sdw_handle_slave_status()
1795 "Slave %d alert handling failed: %d\n", in sdw_handle_slave_status()
1800 if (slave->status == SDW_SLAVE_ATTACHED) in sdw_handle_slave_status()
1803 prev_status = slave->status; in sdw_handle_slave_status()
1804 sdw_modify_slave_status(slave, SDW_SLAVE_ATTACHED); in sdw_handle_slave_status()
1811 ret = sdw_initialize_slave(slave); in sdw_handle_slave_status()
1813 dev_err(&slave->dev, in sdw_handle_slave_status()
1814 "Slave %d initialization failed: %d\n", in sdw_handle_slave_status()
1820 dev_err(&slave->dev, "Invalid slave %d status:%d\n", in sdw_handle_slave_status()
1825 ret = sdw_update_slave_status(slave, status[i]); in sdw_handle_slave_status()
1827 dev_err(&slave->dev, in sdw_handle_slave_status()
1828 "Update Slave status failed:%d\n", ret); in sdw_handle_slave_status()
1830 dev_dbg(&slave->dev, in sdw_handle_slave_status()
1831 "%s: signaling initialization completion for Slave %d\n", in sdw_handle_slave_status()
1832 __func__, slave->dev_num); in sdw_handle_slave_status()
1834 complete(&slave->initialization_complete); in sdw_handle_slave_status()
1844 struct sdw_slave *slave; in sdw_clear_slave_status() local
1856 slave = sdw_get_slave(bus, i); in sdw_clear_slave_status()
1857 if (!slave) in sdw_clear_slave_status()
1860 if (slave->status != SDW_SLAVE_UNATTACHED) { in sdw_clear_slave_status()
1861 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
1862 slave->first_interrupt_done = false; in sdw_clear_slave_status()
1863 sdw_update_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
1867 slave->unattach_request = request; in sdw_clear_slave_status()