Lines Matching refs:slave
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()
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()
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 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 int 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 static int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val) in sdw_update_no_pm() argument
497 tmp = sdw_read_no_pm(slave, addr); in sdw_update_no_pm()
502 return sdw_write_no_pm(slave, addr, tmp); in sdw_update_no_pm()
512 int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nread() argument
516 ret = pm_runtime_get_sync(&slave->dev); in sdw_nread()
518 pm_runtime_put_noidle(&slave->dev); in sdw_nread()
522 ret = sdw_nread_no_pm(slave, addr, count, val); in sdw_nread()
524 pm_runtime_mark_last_busy(&slave->dev); in sdw_nread()
525 pm_runtime_put(&slave->dev); in sdw_nread()
538 int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, u8 *val) in sdw_nwrite() argument
542 ret = pm_runtime_get_sync(&slave->dev); in sdw_nwrite()
544 pm_runtime_put_noidle(&slave->dev); in sdw_nwrite()
548 ret = sdw_nwrite_no_pm(slave, addr, count, val); in sdw_nwrite()
550 pm_runtime_mark_last_busy(&slave->dev); in sdw_nwrite()
551 pm_runtime_put(&slave->dev); in sdw_nwrite()
562 int sdw_read(struct sdw_slave *slave, u32 addr) in sdw_read() argument
567 ret = sdw_nread(slave, addr, 1, &buf); in sdw_read()
581 int sdw_write(struct sdw_slave *slave, u32 addr, u8 value) in sdw_write() argument
583 return sdw_nwrite(slave, addr, 1, &value); in sdw_write()
594 struct sdw_slave *slave = NULL; in sdw_get_slave() local
596 list_for_each_entry(slave, &bus->slaves, node) { in sdw_get_slave()
597 if (slave->dev_num == i) in sdw_get_slave()
598 return slave; in sdw_get_slave()
604 static int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id) in sdw_compare_devid() argument
606 if (slave->id.mfg_id != id.mfg_id || in sdw_compare_devid()
607 slave->id.part_id != id.part_id || in sdw_compare_devid()
608 slave->id.class_id != id.class_id || in sdw_compare_devid()
609 (slave->id.unique_id != SDW_IGNORED_UNIQUE_ID && in sdw_compare_devid()
610 slave->id.unique_id != id.unique_id)) in sdw_compare_devid()
617 static int sdw_get_device_num(struct sdw_slave *slave) in sdw_get_device_num() argument
621 bit = find_first_zero_bit(slave->bus->assigned, SDW_MAX_DEVICES); in sdw_get_device_num()
631 set_bit(bit, slave->bus->assigned); in sdw_get_device_num()
637 static int sdw_assign_device_num(struct sdw_slave *slave) in sdw_assign_device_num() argument
643 if (!slave->dev_num) { in sdw_assign_device_num()
644 if (!slave->dev_num_sticky) { in sdw_assign_device_num()
645 mutex_lock(&slave->bus->bus_lock); in sdw_assign_device_num()
646 dev_num = sdw_get_device_num(slave); in sdw_assign_device_num()
647 mutex_unlock(&slave->bus->bus_lock); in sdw_assign_device_num()
649 dev_err(slave->bus->dev, "Get dev_num failed: %d\n", in sdw_assign_device_num()
653 slave->dev_num = dev_num; in sdw_assign_device_num()
654 slave->dev_num_sticky = dev_num; in sdw_assign_device_num()
657 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
662 dev_dbg(slave->bus->dev, in sdw_assign_device_num()
664 slave->dev_num); in sdw_assign_device_num()
667 dev_num = slave->dev_num; in sdw_assign_device_num()
668 slave->dev_num = 0; in sdw_assign_device_num()
670 ret = sdw_write_no_pm(slave, SDW_SCP_DEVNUMBER, dev_num); in sdw_assign_device_num()
672 dev_err(&slave->dev, "Program device_num %d failed: %d\n", in sdw_assign_device_num()
678 slave->dev_num = slave->dev_num_sticky; in sdw_assign_device_num()
703 struct sdw_slave *slave, *_s; in sdw_program_device_num() local
740 list_for_each_entry_safe(slave, _s, &bus->slaves, node) { in sdw_program_device_num()
741 if (sdw_compare_devid(slave, id) == 0) { in sdw_program_device_num()
750 ret = sdw_assign_device_num(slave); in sdw_program_device_num()
752 dev_err(slave->bus->dev, in sdw_program_device_num()
789 static void sdw_modify_slave_status(struct sdw_slave *slave, in sdw_modify_slave_status() argument
792 mutex_lock(&slave->bus->bus_lock); in sdw_modify_slave_status()
794 dev_vdbg(&slave->dev, in sdw_modify_slave_status()
796 __func__, slave->dev_num, slave->status, status); in sdw_modify_slave_status()
799 dev_dbg(&slave->dev, in sdw_modify_slave_status()
801 __func__, slave->dev_num); in sdw_modify_slave_status()
803 init_completion(&slave->enumeration_complete); in sdw_modify_slave_status()
804 init_completion(&slave->initialization_complete); in sdw_modify_slave_status()
807 (slave->status == SDW_SLAVE_UNATTACHED)) { in sdw_modify_slave_status()
808 dev_dbg(&slave->dev, in sdw_modify_slave_status()
810 __func__, slave->dev_num); in sdw_modify_slave_status()
812 complete(&slave->enumeration_complete); in sdw_modify_slave_status()
814 slave->status = status; in sdw_modify_slave_status()
815 mutex_unlock(&slave->bus->bus_lock); in sdw_modify_slave_status()
818 static enum sdw_clk_stop_mode sdw_get_clk_stop_mode(struct sdw_slave *slave) in sdw_get_clk_stop_mode() argument
826 if (slave->ops && slave->ops->get_clk_stop_mode) { in sdw_get_clk_stop_mode()
827 mode = slave->ops->get_clk_stop_mode(slave); in sdw_get_clk_stop_mode()
829 if (slave->prop.clk_stop_mode1) in sdw_get_clk_stop_mode()
838 static int sdw_slave_clk_stop_callback(struct sdw_slave *slave, in sdw_slave_clk_stop_callback() argument
844 if (slave->ops && slave->ops->clk_stop) { in sdw_slave_clk_stop_callback()
845 ret = slave->ops->clk_stop(slave, mode, type); in sdw_slave_clk_stop_callback()
847 dev_err(&slave->dev, in sdw_slave_clk_stop_callback()
856 static int sdw_slave_clk_stop_prepare(struct sdw_slave *slave, in sdw_slave_clk_stop_prepare() argument
864 wake_en = slave->prop.wake_capable; in sdw_slave_clk_stop_prepare()
875 val = sdw_read_no_pm(slave, SDW_SCP_SYSTEMCTRL); in sdw_slave_clk_stop_prepare()
880 ret = sdw_write_no_pm(slave, SDW_SCP_SYSTEMCTRL, val); in sdw_slave_clk_stop_prepare()
883 dev_err(&slave->dev, in sdw_slave_clk_stop_prepare()
924 struct sdw_slave *slave; in sdw_bus_prep_clk_stop() local
933 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
934 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
937 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
938 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
944 slave_mode = sdw_get_clk_stop_mode(slave); in sdw_bus_prep_clk_stop()
945 slave->curr_clk_stop_mode = slave_mode; in sdw_bus_prep_clk_stop()
947 ret = sdw_slave_clk_stop_callback(slave, slave_mode, in sdw_bus_prep_clk_stop()
950 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
955 ret = sdw_slave_clk_stop_prepare(slave, in sdw_bus_prep_clk_stop()
958 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
979 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_prep_clk_stop()
980 if (!slave->dev_num) in sdw_bus_prep_clk_stop()
983 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_prep_clk_stop()
984 slave->status != SDW_SLAVE_ALERT) in sdw_bus_prep_clk_stop()
987 slave_mode = slave->curr_clk_stop_mode; in sdw_bus_prep_clk_stop()
990 ret = sdw_slave_clk_stop_callback(slave, in sdw_bus_prep_clk_stop()
995 dev_err(&slave->dev, in sdw_bus_prep_clk_stop()
1050 struct sdw_slave *slave; in sdw_bus_exit_clk_stop() local
1059 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1060 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1063 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1064 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1070 mode = slave->curr_clk_stop_mode; in sdw_bus_exit_clk_stop()
1077 ret = sdw_slave_clk_stop_callback(slave, mode, in sdw_bus_exit_clk_stop()
1080 dev_warn(&slave->dev, in sdw_bus_exit_clk_stop()
1083 ret = sdw_slave_clk_stop_prepare(slave, mode, in sdw_bus_exit_clk_stop()
1087 dev_warn(&slave->dev, in sdw_bus_exit_clk_stop()
1101 list_for_each_entry(slave, &bus->slaves, node) { in sdw_bus_exit_clk_stop()
1102 if (!slave->dev_num) in sdw_bus_exit_clk_stop()
1105 if (slave->status != SDW_SLAVE_ATTACHED && in sdw_bus_exit_clk_stop()
1106 slave->status != SDW_SLAVE_ALERT) in sdw_bus_exit_clk_stop()
1109 mode = slave->curr_clk_stop_mode; in sdw_bus_exit_clk_stop()
1110 sdw_slave_clk_stop_callback(slave, mode, in sdw_bus_exit_clk_stop()
1118 int sdw_configure_dpn_intr(struct sdw_slave *slave, in sdw_configure_dpn_intr() argument
1125 if (slave->bus->params.s_data_mode != SDW_PORT_DATA_MODE_NORMAL) { in sdw_configure_dpn_intr()
1126 dev_dbg(&slave->dev, "TEST FAIL interrupt %s\n", in sdw_configure_dpn_intr()
1142 ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val); in sdw_configure_dpn_intr()
1144 dev_err(slave->bus->dev, in sdw_configure_dpn_intr()
1150 static int sdw_slave_set_frequency(struct sdw_slave *slave) in sdw_slave_set_frequency() argument
1152 u32 mclk_freq = slave->bus->prop.mclk_freq; in sdw_slave_set_frequency()
1153 u32 curr_freq = slave->bus->params.curr_dr_freq >> 1; in sdw_slave_set_frequency()
1164 if (!slave->id.class_id) in sdw_slave_set_frequency()
1168 dev_err(&slave->dev, in sdw_slave_set_frequency()
1198 dev_err(&slave->dev, in sdw_slave_set_frequency()
1205 dev_err(&slave->dev, in sdw_slave_set_frequency()
1220 dev_err(&slave->dev, in sdw_slave_set_frequency()
1227 ret = sdw_write_no_pm(slave, SDW_SCP_BUS_CLOCK_BASE, base); in sdw_slave_set_frequency()
1229 dev_err(&slave->dev, in sdw_slave_set_frequency()
1235 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B0, scale_index); in sdw_slave_set_frequency()
1237 dev_err(&slave->dev, in sdw_slave_set_frequency()
1241 ret = sdw_write_no_pm(slave, SDW_SCP_BUSCLOCK_SCALE_B1, scale_index); in sdw_slave_set_frequency()
1243 dev_err(&slave->dev, in sdw_slave_set_frequency()
1246 dev_dbg(&slave->dev, in sdw_slave_set_frequency()
1253 static int sdw_initialize_slave(struct sdw_slave *slave) in sdw_initialize_slave() argument
1255 struct sdw_slave_prop *prop = &slave->prop; in sdw_initialize_slave()
1259 ret = sdw_slave_set_frequency(slave); in sdw_initialize_slave()
1270 val = slave->prop.scp_int1_mask; in sdw_initialize_slave()
1273 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1, val, val); in sdw_initialize_slave()
1275 dev_err(slave->bus->dev, in sdw_initialize_slave()
1281 if (!slave->prop.dp0_prop) in sdw_initialize_slave()
1288 ret = sdw_update_no_pm(slave, SDW_DP0_INTMASK, val, val); in sdw_initialize_slave()
1290 dev_err(slave->bus->dev, in sdw_initialize_slave()
1295 static int sdw_handle_dp0_interrupt(struct sdw_slave *slave, u8 *slave_status) in sdw_handle_dp0_interrupt() argument
1300 status = sdw_read(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1302 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1309 dev_err(&slave->dev, "Test fail for port 0\n"); in sdw_handle_dp0_interrupt()
1319 complete(&slave->port_ready[0]); in sdw_handle_dp0_interrupt()
1324 dev_err(&slave->dev, "BRA failed\n"); in sdw_handle_dp0_interrupt()
1337 ret = sdw_write(slave, SDW_DP0_INT, clear); in sdw_handle_dp0_interrupt()
1339 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1345 status2 = sdw_read(slave, SDW_DP0_INT); in sdw_handle_dp0_interrupt()
1347 dev_err(slave->bus->dev, in sdw_handle_dp0_interrupt()
1359 dev_warn(slave->bus->dev, "Reached MAX_RETRY on DP0 read\n"); in sdw_handle_dp0_interrupt()
1364 static int sdw_handle_port_interrupt(struct sdw_slave *slave, in sdw_handle_port_interrupt() argument
1372 return sdw_handle_dp0_interrupt(slave, slave_status); in sdw_handle_port_interrupt()
1375 status = sdw_read(slave, addr); in sdw_handle_port_interrupt()
1377 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1385 dev_err(&slave->dev, "Test fail for port:%d\n", port); in sdw_handle_port_interrupt()
1394 complete(&slave->port_ready[port]); in sdw_handle_port_interrupt()
1407 ret = sdw_write(slave, addr, clear); in sdw_handle_port_interrupt()
1409 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1415 status2 = sdw_read(slave, addr); in sdw_handle_port_interrupt()
1417 dev_err(slave->bus->dev, in sdw_handle_port_interrupt()
1429 dev_warn(slave->bus->dev, "Reached MAX_RETRY on port read"); in sdw_handle_port_interrupt()
1434 static int sdw_handle_slave_alerts(struct sdw_slave *slave) in sdw_handle_slave_alerts() argument
1445 sdw_modify_slave_status(slave, SDW_SLAVE_ALERT); in sdw_handle_slave_alerts()
1447 ret = pm_runtime_get_sync(&slave->dev); in sdw_handle_slave_alerts()
1449 dev_err(&slave->dev, "Failed to resume device: %d\n", ret); in sdw_handle_slave_alerts()
1450 pm_runtime_put_noidle(&slave->dev); in sdw_handle_slave_alerts()
1455 ret = sdw_read(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1457 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1463 ret = sdw_nread(slave, SDW_SCP_INTSTAT2, 2, buf2); in sdw_handle_slave_alerts()
1465 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1476 parity_check = slave->prop.scp_int1_mask & SDW_SCP_INT1_PARITY; in sdw_handle_slave_alerts()
1477 parity_quirk = !slave->first_interrupt_done && in sdw_handle_slave_alerts()
1478 (slave->prop.quirks & SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY); in sdw_handle_slave_alerts()
1481 dev_err(&slave->dev, "Parity error detected\n"); in sdw_handle_slave_alerts()
1486 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_BUS_CLASH) in sdw_handle_slave_alerts()
1487 dev_err(&slave->dev, "Bus clash detected\n"); in sdw_handle_slave_alerts()
1499 if (slave->prop.scp_int1_mask & SDW_SCP_INT1_IMPL_DEF) { in sdw_handle_slave_alerts()
1500 dev_dbg(&slave->dev, "Slave impl defined interrupt\n"); in sdw_handle_slave_alerts()
1512 sdw_handle_port_interrupt(slave, bit, in sdw_handle_slave_alerts()
1522 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1534 sdw_handle_port_interrupt(slave, in sdw_handle_slave_alerts()
1541 if (slave_notify && slave->ops && in sdw_handle_slave_alerts()
1542 slave->ops->interrupt_callback) { in sdw_handle_slave_alerts()
1547 slave->ops->interrupt_callback(slave, &slave_intr); in sdw_handle_slave_alerts()
1551 ret = sdw_write(slave, SDW_SCP_INT1, clear); in sdw_handle_slave_alerts()
1553 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1559 slave->first_interrupt_done = true; in sdw_handle_slave_alerts()
1565 ret = sdw_read(slave, SDW_SCP_INT1); in sdw_handle_slave_alerts()
1567 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1573 ret = sdw_nread(slave, SDW_SCP_INTSTAT2, 2, _buf2); in sdw_handle_slave_alerts()
1575 dev_err(slave->bus->dev, in sdw_handle_slave_alerts()
1596 dev_warn(slave->bus->dev, "Reached MAX_RETRY on alert read\n"); in sdw_handle_slave_alerts()
1599 pm_runtime_mark_last_busy(&slave->dev); in sdw_handle_slave_alerts()
1600 pm_runtime_put_autosuspend(&slave->dev); in sdw_handle_slave_alerts()
1605 static int sdw_update_slave_status(struct sdw_slave *slave, in sdw_update_slave_status() argument
1610 if (!slave->probed) { in sdw_update_slave_status()
1619 time = wait_for_completion_timeout(&slave->probe_complete, in sdw_update_slave_status()
1622 dev_err(&slave->dev, "Probe not complete, timed out\n"); in sdw_update_slave_status()
1627 if (!slave->ops || !slave->ops->update_status) in sdw_update_slave_status()
1630 return slave->ops->update_status(slave, status); in sdw_update_slave_status()
1642 struct sdw_slave *slave; in sdw_handle_slave_status() local
1655 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1656 if (!slave) in sdw_handle_slave_status()
1660 slave->status != SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1661 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1685 slave = sdw_get_slave(bus, i); in sdw_handle_slave_status()
1686 if (!slave) in sdw_handle_slave_status()
1693 if (slave->status == SDW_SLAVE_UNATTACHED) in sdw_handle_slave_status()
1696 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_handle_slave_status()
1700 ret = sdw_handle_slave_alerts(slave); in sdw_handle_slave_status()
1708 if (slave->status == SDW_SLAVE_ATTACHED) in sdw_handle_slave_status()
1711 prev_status = slave->status; in sdw_handle_slave_status()
1712 sdw_modify_slave_status(slave, SDW_SLAVE_ATTACHED); in sdw_handle_slave_status()
1719 ret = sdw_initialize_slave(slave); in sdw_handle_slave_status()
1733 ret = sdw_update_slave_status(slave, status[i]); in sdw_handle_slave_status()
1735 dev_err(slave->bus->dev, in sdw_handle_slave_status()
1738 complete(&slave->initialization_complete); in sdw_handle_slave_status()
1747 struct sdw_slave *slave; in sdw_clear_slave_status() local
1759 slave = sdw_get_slave(bus, i); in sdw_clear_slave_status()
1760 if (!slave) in sdw_clear_slave_status()
1763 if (slave->status != SDW_SLAVE_UNATTACHED) { in sdw_clear_slave_status()
1764 sdw_modify_slave_status(slave, SDW_SLAVE_UNATTACHED); in sdw_clear_slave_status()
1765 slave->first_interrupt_done = false; in sdw_clear_slave_status()
1769 slave->unattach_request = request; in sdw_clear_slave_status()