Lines Matching full:slave
133 * Create Slave devices based on Slaves described in in sdw_bus_master_add()
170 struct sdw_slave *slave = dev_to_sdw_dev(dev); in sdw_delete_slave() local
171 struct sdw_bus *bus = slave->bus; in sdw_delete_slave()
175 sdw_slave_debugfs_exit(slave); in sdw_delete_slave()
179 if (slave->dev_num) { /* clear dev_num if assigned */ in sdw_delete_slave()
180 clear_bit(slave->dev_num, bus->assigned); in sdw_delete_slave()
182 bus->ops->put_device_num(bus, slave); in sdw_delete_slave()
184 list_del_init(&slave->node); in sdw_delete_slave()
280 dev_err(bus->dev, "trf on Slave %d failed:%d %s addr %x count %d\n", in sdw_transfer_unlocked()
289 * sdw_transfer() - Synchronous transfer message to a SDW Slave device
339 * sdw_transfer_defer() - Asynchronously transfer message to a SDW Slave device
354 dev_err(bus->dev, "Defer trf on Slave %d failed:%d\n", in sdw_transfer_defer()
360 int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave, in sdw_fill_msg() argument
379 if (slave && !slave->prop.paging_support) in sdw_fill_msg()
390 if (!slave) { in sdw_fill_msg()
391 pr_err("SDW: No slave for paging addr\n"); in sdw_fill_msg()
395 if (!slave->prop.paging_support) { in sdw_fill_msg()
396 dev_err(&slave->dev, in sdw_fill_msg()
413 static int sdw_ntransfer_no_pm(struct sdw_slave *slave, u32 addr, u8 flags, in sdw_ntransfer_no_pm() argument
424 ret = sdw_fill_msg(&msg, slave, addr, size, slave->dev_num, flags, val); in sdw_ntransfer_no_pm()
428 ret = sdw_transfer(slave->bus, &msg); in sdw_ntransfer_no_pm()
429 if (ret < 0 && !slave->is_mockup_device) in sdw_ntransfer_no_pm()
441 * sdw_nread_no_pm() - Read "n" contiguous SDW Slave registers with no PM
442 * @slave: SDW Slave
450 int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread_no_pm() argument
452 return sdw_ntransfer_no_pm(slave, addr, SDW_MSG_FLAG_READ, count, val); in sdw_nread_no_pm()
457 * sdw_nwrite_no_pm() - Write "n" contiguous SDW Slave registers with no PM
458 * @slave: SDW Slave
466 int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) in sdw_nwrite_no_pm() argument
468 return sdw_ntransfer_no_pm(slave, addr, SDW_MSG_FLAG_WRITE, count, (u8 *)val); in sdw_nwrite_no_pm()
473 * sdw_write_no_pm() - Write a SDW Slave register with no PM
474 * @slave: SDW Slave
478 int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write_no_pm() argument
480 return sdw_nwrite_no_pm(slave, addr, 1, &value); in sdw_write_no_pm()
551 * sdw_read_no_pm() - Read a SDW Slave register with no PM
552 * @slave: SDW Slave
555 int sdw_read_no_pm(struct sdw_slave *slave, u32 addr) in sdw_read_no_pm() argument
560 ret = sdw_nread_no_pm(slave, addr, 1, &buf); in sdw_read_no_pm()
568 int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) in sdw_update_no_pm() argument
572 tmp = sdw_read_no_pm(slave, addr); in sdw_update_no_pm()
577 return sdw_write_no_pm(slave, addr, tmp); in sdw_update_no_pm()
581 /* Read-Modify-Write Slave register */
582 int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) in sdw_update() argument
586 tmp = sdw_read(slave, addr); in sdw_update()
591 return sdw_write(slave, addr, tmp); in sdw_update()
596 * sdw_nread() - Read "n" contiguous SDW Slave registers
597 * @slave: SDW Slave
602 * This version of the function will take a PM reference to the slave
607 int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread() argument
611 ret = pm_runtime_get_sync(&slave->dev); in sdw_nread()
613 pm_runtime_put_noidle(&slave->dev); in sdw_nread()
617 ret = sdw_nread_no_pm(slave, addr, count, val); in sdw_nread()
619 pm_runtime_mark_last_busy(&slave->dev); in sdw_nread()
620 pm_runtime_put(&slave->dev); in sdw_nread()
627 * sdw_nwrite() - Write "n" contiguous SDW Slave registers
628 * @slave: SDW Slave
633 * This version of the function will take a PM reference to the slave
638 int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val) in sdw_nwrite() argument
642 ret = pm_runtime_get_sync(&slave->dev); in sdw_nwrite()
644 pm_runtime_put_noidle(&slave->dev); in sdw_nwrite()
648 ret = sdw_nwrite_no_pm(slave, addr, count, val); in sdw_nwrite()
650 pm_runtime_mark_last_busy(&slave->dev); in sdw_nwrite()
651 pm_runtime_put(&slave->dev); in sdw_nwrite()
658 * sdw_read() - Read a SDW Slave register
659 * @slave: SDW Slave
662 * This version of the function will take a PM reference to the slave
665 int sdw_read(struct sdw_slave *slave, u32 addr) in sdw_read() argument
670 ret = sdw_nread(slave, addr, 1, &buf); in sdw_read()
679 * sdw_write() - Write a SDW Slave register
680 * @slave: SDW Slave
684 * This version of the function will take a PM reference to the slave
687 int sdw_write(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write() argument
689 return sdw_nwrite(slave, addr, 1, &value); in sdw_write()
700 struct sdw_slave *slave; in sdw_get_slave() local
702 list_for_each_entry(slave, &bus->slaves, node) { in sdw_get_slave()
703 if (slave->dev_num == i) in sdw_get_slave()
704 return slave; in sdw_get_slave()
710 int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id) in sdw_compare_devid() argument
712 if (slave->id.mfg_id != id.mfg_id || in sdw_compare_devid()
713 slave->id.part_id != id.part_id || in sdw_compare_devid()
714 slave->id.class_id != id.class_id || in sdw_compare_devid()
715 (slave->id.unique_id != SDW_IGNORED_UNIQUE_ID && in sdw_compare_devid()
716 slave->id.unique_id != id.unique_id)) in sdw_compare_devid()
724 static int sdw_get_device_num(struct sdw_slave *slave) in sdw_get_device_num() argument
726 struct sdw_bus *bus = slave->bus; in sdw_get_device_num()
730 bit = bus->ops->get_device_num(bus, slave); in sdw_get_device_num()
742 * Do not update dev_num in Slave data structure here, in sdw_get_device_num()
751 static int sdw_assign_device_num(struct sdw_slave *slave) in sdw_assign_device_num() argument
753 struct sdw_bus *bus = slave->bus; in sdw_assign_device_num()
758 if (!slave->dev_num) { in sdw_assign_device_num()
759 if (!slave->dev_num_sticky) { in sdw_assign_device_num()
760 mutex_lock(&slave->bus->bus_lock); in sdw_assign_device_num()
761 dev_num = sdw_get_device_num(slave); in sdw_assign_device_num()
762 mutex_unlock(&slave->bus->bus_lock); in sdw_assign_device_num()
768 slave->dev_num = dev_num; in sdw_assign_device_num()
769 slave->dev_num_sticky = dev_num; in sdw_assign_device_num()
772 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
778 "Slave already registered, reusing dev_num:%d\n", in sdw_assign_device_num()
779 slave->dev_num); in sdw_assign_device_num()
781 /* Clear the slave->dev_num to transfer message on device 0 */ in sdw_assign_device_num()
782 dev_num = slave->dev_num; in sdw_assign_device_num()
783 slave->dev_num = 0; in sdw_assign_device_num()
785 ret = sdw_write_no_pm(slave, SDW_SCP_DEVNUMBER, dev_num); in sdw_assign_device_num()
793 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
796 bus->ops->new_peripheral_assigned(bus, slave, dev_num); in sdw_assign_device_num()
804 dev_dbg(bus->dev, "SDW Slave Addr: %llx\n", addr); in sdw_extract_slave_id()
813 "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()
818 bool is_clock_scaling_supported_by_slave(struct sdw_slave *slave) in is_clock_scaling_supported_by_slave() argument
824 return slave->id.class_id; in is_clock_scaling_supported_by_slave()
831 struct sdw_slave *slave, *_s; in sdw_program_device_num() local
840 /* No Slave, so use raw xfer api */ in sdw_program_device_num()
870 list_for_each_entry_safe(slave, _s, &bus->slaves, node) { in sdw_program_device_num()
871 if (sdw_compare_devid(slave, id) == 0) { in sdw_program_device_num()
881 if (slave->status != SDW_SLAVE_UNATTACHED) in sdw_program_device_num()
885 * Assign a new dev_num to this Slave and in sdw_program_device_num()
890 ret = sdw_assign_device_num(slave); in sdw_program_device_num()
908 * add Slave device even if there is no platform in sdw_program_device_num()
915 dev_err(bus->dev, "Slave Entry not found\n"); in sdw_program_device_num()
931 static void sdw_modify_slave_status(struct sdw_slave *slave, in sdw_modify_slave_status() argument
934 struct sdw_bus *bus = slave->bus; in sdw_modify_slave_status()
939 "changing status slave %d status %d new status %d\n", in sdw_modify_slave_status()
940 slave->dev_num, slave->status, status); in sdw_modify_slave_status()
943 dev_dbg(&slave->dev, in sdw_modify_slave_status()
944 "initializing enumeration and init completion for Slave %d\n", in sdw_modify_slave_status()
945 slave->dev_num); in sdw_modify_slave_status()
947 reinit_completion(&slave->enumeration_complete); in sdw_modify_slave_status()
948 reinit_completion(&slave->initialization_complete); in sdw_modify_slave_status()
951 (slave->status == SDW_SLAVE_UNATTACHED)) { in sdw_modify_slave_status()
952 dev_dbg(&slave->dev, in sdw_modify_slave_status()
953 "signaling enumeration completion for Slave %d\n", in sdw_modify_slave_status()
954 slave->dev_num); in sdw_modify_slave_status()
956 complete_all(&slave->enumeration_complete); in sdw_modify_slave_status()
958 slave->status = status; in sdw_modify_slave_status()
962 static int sdw_slave_clk_stop_callback(struct sdw_slave *slave, in sdw_slave_clk_stop_callback() argument
968 mutex_lock(&slave->sdw_dev_lock); in sdw_slave_clk_stop_callback()
970 if (slave->probed) { in sdw_slave_clk_stop_callback()
971 struct device *dev = &slave->dev; in sdw_slave_clk_stop_callback()
975 ret = drv->ops->clk_stop(slave, mode, type); in sdw_slave_clk_stop_callback()
978 mutex_unlock(&slave->sdw_dev_lock); in sdw_slave_clk_stop_callback()
983 static int sdw_slave_clk_stop_prepare(struct sdw_slave *slave, in sdw_slave_clk_stop_prepare() argument
991 wake_en = slave->prop.wake_capable; in sdw_slave_clk_stop_prepare()
1002 ret = sdw_read_no_pm(slave, SDW_SCP_SYSTEMCTRL); in sdw_slave_clk_stop_prepare()
1005 dev_err(&slave->dev, "SDW_SCP_SYSTEMCTRL read failed:%d\n", ret); in sdw_slave_clk_stop_prepare()
1012 ret = sdw_write_no_pm(slave, SDW_SCP_SYSTEMCTRL, val); in sdw_slave_clk_stop_prepare()
1015 dev_err(&slave->dev, "SDW_SCP_SYSTEMCTRL write failed:%d\n", ret); in sdw_slave_clk_stop_prepare()
1034 dev_dbg(bus->dev, "clock stop %s done slave:%d\n", in sdw_bus_wait_for_clk_prep_deprep()
1044 dev_dbg(bus->dev, "clock stop %s did not complete for slave:%d\n", in sdw_bus_wait_for_clk_prep_deprep()
1052 * sdw_bus_prep_clk_stop: prepare Slave(s) for clock stop
1056 * Query Slave for clock stop mode and prepare for that mode.
1061 struct sdw_slave *slave; in sdw_bus_prep_clk_stop() local
1067 * each Slave and then wait for all Slave(s) to be in sdw_bus_prep_clk_stop()
1069 * If one of the Slave devices has lost sync and in sdw_bus_prep_clk_stop()
1073 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
1074 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
1077 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
1078 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
1081 /* Identify if Slave(s) are available on Bus */ in sdw_bus_prep_clk_stop()
1084 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
1088 dev_err(&slave->dev, "clock stop pre-prepare cb failed:%d\n", ret); in sdw_bus_prep_clk_stop()
1092 /* Only prepare a Slave device if needed */ in sdw_bus_prep_clk_stop()
1093 if (!slave->prop.simple_clk_stop_capable) { in sdw_bus_prep_clk_stop()
1096 ret = sdw_slave_clk_stop_prepare(slave, in sdw_bus_prep_clk_stop()
1100 dev_err(&slave->dev, "clock stop prepare failed:%d\n", ret); in sdw_bus_prep_clk_stop()
1106 /* Skip remaining clock stop preparation if no Slave is attached */ in sdw_bus_prep_clk_stop()
1118 * if there are no Slave devices present and the reply is in sdw_bus_prep_clk_stop()
1128 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
1129 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
1132 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
1133 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
1136 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
1141 dev_err(&slave->dev, "clock stop post-prepare cb failed:%d\n", ret); in sdw_bus_prep_clk_stop()
1190 struct sdw_slave *slave; in sdw_bus_exit_clk_stop() local
1196 * each Slave and then wait for all Slave(s) to be in sdw_bus_exit_clk_stop()
1199 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1200 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1203 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1204 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1207 /* Identify if Slave(s) are available on Bus */ in sdw_bus_exit_clk_stop()
1210 ret = sdw_slave_clk_stop_callback(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1213 dev_warn(&slave->dev, "clock stop pre-deprepare cb failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1215 /* Only de-prepare a Slave device if needed */ in sdw_bus_exit_clk_stop()
1216 if (!slave->prop.simple_clk_stop_capable) { in sdw_bus_exit_clk_stop()
1219 ret = sdw_slave_clk_stop_prepare(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1223 dev_warn(&slave->dev, "clock stop deprepare failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1227 /* Skip remaining clock stop de-preparation if no Slave is attached */ in sdw_bus_exit_clk_stop()
1241 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1242 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1245 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1246 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1249 ret = sdw_slave_clk_stop_callback(slave, SDW_CLK_STOP_MODE0, in sdw_bus_exit_clk_stop()
1252 dev_warn(&slave->dev, "clock stop post-deprepare cb failed:%d\n", ret); in sdw_bus_exit_clk_stop()
1259 int sdw_configure_dpn_intr(struct sdw_slave *slave, in sdw_configure_dpn_intr() argument
1266 if (slave->bus->params.s_data_mode != SDW_PORT_DATA_MODE_NORMAL) { in sdw_configure_dpn_intr()
1267 dev_dbg(&slave->dev, "TEST FAIL interrupt %s\n", in sdw_configure_dpn_intr()
1283 ret = sdw_update_no_pm(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); in sdw_configure_dpn_intr()
1285 dev_err(&slave->dev, in sdw_configure_dpn_intr()
1291 int sdw_slave_get_scale_index(struct sdw_slave *slave, u8 *base) in sdw_slave_get_scale_index() argument
1293 u32 mclk_freq = slave->bus->prop.mclk_freq; in sdw_slave_get_scale_index()
1294 u32 curr_freq = slave->bus->params.curr_dr_freq >> 1; in sdw_slave_get_scale_index()
1299 dev_err(&slave->dev, in sdw_slave_get_scale_index()
1329 dev_err(&slave->dev, in sdw_slave_get_scale_index()
1336 dev_err(&slave->dev, in sdw_slave_get_scale_index()
1351 dev_err(&slave->dev, in sdw_slave_get_scale_index()
1358 dev_dbg(&slave->dev, in sdw_slave_get_scale_index()
1366 static int sdw_slave_set_frequency(struct sdw_slave *slave) in sdw_slave_set_frequency() argument
1379 if (!slave->id.class_id && !slave->prop.clock_reg_supported) in sdw_slave_set_frequency()
1382 scale_index = sdw_slave_get_scale_index(slave, &base); in sdw_slave_set_frequency()
1386 ret = sdw_write_no_pm(slave, SDW_SCP_BUS_CLOCK_BASE, base); in sdw_slave_set_frequency()
1388 dev_err(&slave->dev, in sdw_slave_set_frequency()
1394 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B0, scale_index); in sdw_slave_set_frequency()
1396 dev_err(&slave->dev, in sdw_slave_set_frequency()
1400 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B1, scale_index); in sdw_slave_set_frequency()
1402 dev_err(&slave->dev, in sdw_slave_set_frequency()
1408 static int sdw_initialize_slave(struct sdw_slave *slave) in sdw_initialize_slave() argument
1410 struct sdw_slave_prop *prop = &slave->prop; in sdw_initialize_slave()
1415 ret = sdw_slave_set_frequency(slave); in sdw_initialize_slave()
1419 if (slave->bus->prop.quirks & SDW_MASTER_QUIRKS_CLEAR_INITIAL_CLASH) { in sdw_initialize_slave()
1421 status = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_initialize_slave()
1423 dev_err(&slave->dev, in sdw_initialize_slave()
1428 dev_warn(&slave->dev, "Bus clash detected before INT mask is enabled\n"); in sdw_initialize_slave()
1429 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, SDW_SCP_INT1_BUS_CLASH); in sdw_initialize_slave()
1431 dev_err(&slave->dev, in sdw_initialize_slave()
1437 if ((slave->bus->prop.quirks & SDW_MASTER_QUIRKS_CLEAR_INITIAL_PARITY) && in sdw_initialize_slave()
1440 status = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_initialize_slave()
1442 dev_err(&slave->dev, in sdw_initialize_slave()
1447 dev_warn(&slave->dev, "PARITY error detected before INT mask is enabled\n"); in sdw_initialize_slave()
1448 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, SDW_SCP_INT1_PARITY); in sdw_initialize_slave()
1450 dev_err(&slave->dev, in sdw_initialize_slave()
1467 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, val, val); in sdw_initialize_slave()
1469 dev_err(&slave->dev, in sdw_initialize_slave()
1482 ret = sdw_update_no_pm(slave, SDW_DP0_INTMASK, val, val); in sdw_initialize_slave()
1484 dev_err(&slave->dev, in sdw_initialize_slave()
1489 static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status) in sdw_handle_dp0_interrupt() argument
1494 status = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1496 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1505 dev_err(&slave->dev, "Test fail for port 0\n"); in sdw_handle_dp0_interrupt()
1515 complete(&slave->port_ready[0]); in sdw_handle_dp0_interrupt()
1520 dev_err(&slave->dev, "BRA failed\n"); in sdw_handle_dp0_interrupt()
1533 ret = sdw_write_no_pm(slave, SDW_DP0_INT, clear); in sdw_handle_dp0_interrupt()
1535 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1541 status2 = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1543 dev_err(&slave->dev, in sdw_handle_dp0_interrupt()
1556 dev_warn(&slave->dev, "Reached MAX_RETRY on DP0 read\n"); in sdw_handle_dp0_interrupt()
1561 static int sdw_handle_port_interrupt(struct sdw_slave *slave, in sdw_handle_port_interrupt() argument
1569 return sdw_handle_dp0_interrupt(slave, slave_status); in sdw_handle_port_interrupt()
1572 status = sdw_read_no_pm(slave, addr); in sdw_handle_port_interrupt()
1574 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1584 dev_err(&slave->dev, "Test fail for port:%d\n", port); in sdw_handle_port_interrupt()
1593 complete(&slave->port_ready[port]); in sdw_handle_port_interrupt()
1606 ret = sdw_write_no_pm(slave, addr, clear); in sdw_handle_port_interrupt()
1608 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1614 status2 = sdw_read_no_pm(slave, addr); in sdw_handle_port_interrupt()
1616 dev_err(&slave->dev, in sdw_handle_port_interrupt()
1629 dev_warn(&slave->dev, "Reached MAX_RETRY on port read"); in sdw_handle_port_interrupt()
1634 static int sdw_handle_slave_alerts(struct sdw_slave *slave) in sdw_handle_slave_alerts() argument
1646 sdw_modify_slave_status(slave, SDW_SLAVE_ALERT); in sdw_handle_slave_alerts()
1648 ret = pm_runtime_get_sync(&slave->dev); in sdw_handle_slave_alerts()
1650 dev_err(&slave->dev, "Failed to resume device: %d\n", ret); in sdw_handle_slave_alerts()
1651 pm_runtime_put_noidle(&slave->dev); in sdw_handle_slave_alerts()
1656 ret = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1658 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1664 ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, buf2); in sdw_handle_slave_alerts()
1666 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1671 if (slave->id.class_id) { in sdw_handle_slave_alerts()
1672 ret = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_slave_alerts()
1674 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1685 * Check parity, bus clash and Slave (impl defined) in sdw_handle_slave_alerts()
1689 parity_check = slave->prop.scp_int1_mask & SDW_SCP_INT1_PARITY; in sdw_handle_slave_alerts()
1690 parity_quirk = !slave->first_interrupt_done && in sdw_handle_slave_alerts()
1691 (slave->prop.quirks & SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY); in sdw_handle_slave_alerts()
1694 dev_err(&slave->dev, "Parity error detected\n"); in sdw_handle_slave_alerts()
1699 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_BUS_CLASH) in sdw_handle_slave_alerts()
1700 dev_err(&slave->dev, "Bus clash detected\n"); in sdw_handle_slave_alerts()
1712 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_IMPL_DEF) { in sdw_handle_slave_alerts()
1713 dev_dbg(&slave->dev, "Slave impl defined interrupt\n"); in sdw_handle_slave_alerts()
1729 sdw_handle_port_interrupt(slave, bit, in sdw_handle_slave_alerts()
1739 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1751 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1757 /* Update the Slave driver */ in sdw_handle_slave_alerts()
1759 mutex_lock(&slave->sdw_dev_lock); in sdw_handle_slave_alerts()
1761 if (slave->probed) { in sdw_handle_slave_alerts()
1762 struct device *dev = &slave->dev; in sdw_handle_slave_alerts()
1765 if (slave->prop.use_domain_irq && slave->irq) in sdw_handle_slave_alerts()
1766 handle_nested_irq(slave->irq); in sdw_handle_slave_alerts()
1774 drv->ops->interrupt_callback(slave, &slave_intr); in sdw_handle_slave_alerts()
1778 mutex_unlock(&slave->sdw_dev_lock); in sdw_handle_slave_alerts()
1782 ret = sdw_write_no_pm(slave, SDW_SCP_INT1, clear); in sdw_handle_slave_alerts()
1784 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1790 slave->first_interrupt_done = true; in sdw_handle_slave_alerts()
1796 ret = sdw_read_no_pm(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1798 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1804 ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, buf2); in sdw_handle_slave_alerts()
1806 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1811 if (slave->id.class_id) { in sdw_handle_slave_alerts()
1812 ret = sdw_read_no_pm(slave, SDW_DP0_INT); in sdw_handle_slave_alerts()
1814 dev_err(&slave->dev, in sdw_handle_slave_alerts()
1827 * Exit loop if Slave is continuously in ALERT state even in sdw_handle_slave_alerts()
1836 dev_warn(&slave->dev, "Reached MAX_RETRY on alert read\n"); in sdw_handle_slave_alerts()
1839 pm_runtime_mark_last_busy(&slave->dev); in sdw_handle_slave_alerts()
1840 pm_runtime_put_autosuspend(&slave->dev); in sdw_handle_slave_alerts()
1845 static int sdw_update_slave_status(struct sdw_slave *slave, in sdw_update_slave_status() argument
1850 mutex_lock(&slave->sdw_dev_lock); in sdw_update_slave_status()
1852 if (slave->probed) { in sdw_update_slave_status()
1853 struct device *dev = &slave->dev; in sdw_update_slave_status()
1857 ret = drv->ops->update_status(slave, status); in sdw_update_slave_status()
1860 mutex_unlock(&slave->sdw_dev_lock); in sdw_update_slave_status()
1866 * sdw_handle_slave_status() - Handle Slave status
1868 * @status: Status for all Slave(s)
1874 struct sdw_slave *slave; in sdw_handle_slave_status() local
1887 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1888 if (!slave) in sdw_handle_slave_status()
1892 slave->status != SDW_SLAVE_UNATTACHED) { in sdw_handle_slave_status()
1893 dev_warn(&slave->dev, "Slave %d state check1: UNATTACHED, status was %d\n", in sdw_handle_slave_status()
1894 i, slave->status); in sdw_handle_slave_status()
1895 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1898 ret = sdw_update_slave_status(slave, status[i]); in sdw_handle_slave_status()
1900 dev_warn(&slave->dev, "Update Slave status failed:%d\n", ret); in sdw_handle_slave_status()
1905 dev_dbg(bus->dev, "Slave attached, programming device number\n"); in sdw_handle_slave_status()
1925 /* Continue to check other slave statuses */ in sdw_handle_slave_status()
1934 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1935 if (!slave) in sdw_handle_slave_status()
1942 if (slave->status == SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1945 dev_warn(&slave->dev, "Slave %d state check2: UNATTACHED, status was %d\n", in sdw_handle_slave_status()
1946 i, slave->status); in sdw_handle_slave_status()
1948 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1952 ret = sdw_handle_slave_alerts(slave); in sdw_handle_slave_status()
1954 dev_err(&slave->dev, in sdw_handle_slave_status()
1955 "Slave %d alert handling failed: %d\n", in sdw_handle_slave_status()
1960 if (slave->status == SDW_SLAVE_ATTACHED) in sdw_handle_slave_status()
1963 prev_status = slave->status; in sdw_handle_slave_status()
1964 sdw_modify_slave_status(slave, SDW_SLAVE_ATTACHED); in sdw_handle_slave_status()
1971 ret = sdw_initialize_slave(slave); in sdw_handle_slave_status()
1973 dev_err(&slave->dev, in sdw_handle_slave_status()
1974 "Slave %d initialization failed: %d\n", in sdw_handle_slave_status()
1980 dev_err(&slave->dev, "Invalid slave %d status:%d\n", in sdw_handle_slave_status()
1985 ret = sdw_update_slave_status(slave, status[i]); in sdw_handle_slave_status()
1987 dev_err(&slave->dev, in sdw_handle_slave_status()
1988 "Update Slave status failed:%d\n", ret); in sdw_handle_slave_status()
1990 dev_dbg(&slave->dev, in sdw_handle_slave_status()
1991 "signaling initialization completion for Slave %d\n", in sdw_handle_slave_status()
1992 slave->dev_num); in sdw_handle_slave_status()
1994 complete_all(&slave->initialization_complete); in sdw_handle_slave_status()
2006 pm_request_resume(&slave->dev); in sdw_handle_slave_status()
2016 struct sdw_slave *slave; in sdw_clear_slave_status() local
2028 slave = sdw_get_slave(bus, i); in sdw_clear_slave_status()
2029 if (!slave) in sdw_clear_slave_status()
2032 if (slave->status != SDW_SLAVE_UNATTACHED) { in sdw_clear_slave_status()
2033 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
2034 slave->first_interrupt_done = false; in sdw_clear_slave_status()
2035 sdw_update_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
2039 slave->unattach_request = request; in sdw_clear_slave_status()
2044 int sdw_bpt_send_async(struct sdw_bus *bus, struct sdw_slave *slave, struct sdw_bpt_msg *msg) in sdw_bpt_send_async() argument
2052 if (slave->dev_num == SDW_ENUM_DEV_NUM || in sdw_bpt_send_async()
2053 slave->dev_num > SDW_MAX_DEVICES) { in sdw_bpt_send_async()
2054 dev_err(&slave->dev, "Invalid device number %d\n", slave->dev_num); in sdw_bpt_send_async()
2065 return bus->ops->bpt_send_async(bus, slave, msg); in sdw_bpt_send_async()
2069 int sdw_bpt_wait(struct sdw_bus *bus, struct sdw_slave *slave, struct sdw_bpt_msg *msg) in sdw_bpt_wait() argument
2071 return bus->ops->bpt_wait(bus, slave, msg); in sdw_bpt_wait()
2075 int sdw_bpt_send_sync(struct sdw_bus *bus, struct sdw_slave *slave, struct sdw_bpt_msg *msg) in sdw_bpt_send_sync() argument
2079 ret = sdw_bpt_send_async(bus, slave, msg); in sdw_bpt_send_sync()
2083 return sdw_bpt_wait(bus, slave, msg); in sdw_bpt_send_sync()