80 struct mlxsw_i2c {  struct
115 mlxsw_i2c_convert_mbox(struct mlxsw_i2c *mlxsw_i2c, u8 *buf)  in mlxsw_i2c_convert_mbox()  argument
121 	mlxsw_i2c->cmd.mb_off_in = tmp &  in mlxsw_i2c_convert_mbox()
123 	mlxsw_i2c->cmd.mb_size_in = (tmp & GENMASK(31,  in mlxsw_i2c_convert_mbox()
128 	mlxsw_i2c->cmd.mb_off_out = tmp &  in mlxsw_i2c_convert_mbox()
130 	mlxsw_i2c->cmd.mb_size_out = (tmp & GENMASK(31,  in mlxsw_i2c_convert_mbox()
153 				 struct mlxsw_i2c *mlxsw_i2c, u8 *p_status)  in mlxsw_i2c_wait_go_bit()  argument
197 			       struct mlxsw_i2c *mlxsw_i2c,  in mlxsw_i2c_write_cmd()  argument
244 			 struct mlxsw_i2c *mlxsw_i2c, u16 opcode, u32 in_mod)  in mlxsw_i2c_write_init_cmd()  argument
285 	err = mlxsw_i2c_wait_go_bit(client, mlxsw_i2c, &status);  in mlxsw_i2c_write_init_cmd()
303 			      struct mlxsw_i2c *mlxsw_i2c)  in mlxsw_i2c_get_mbox()  argument
323 	mlxsw_i2c_convert_mbox(mlxsw_i2c, &buf[MLXSW_I2C_MBOX_OUT_PARAM_OFF]);  in mlxsw_i2c_get_mbox()
334 	struct mlxsw_i2c *mlxsw_i2c = i2c_get_clientdata(client);  in mlxsw_i2c_write()  local
336 	int off = mlxsw_i2c->cmd.mb_off_in, chunk_size, i, j;  in mlxsw_i2c_write()
343 	tran_buf = kmalloc(mlxsw_i2c->block_size + MLXSW_I2C_ADDR_BUF_SIZE,  in mlxsw_i2c_write()
350 		chunk_size = (in_mbox_size > mlxsw_i2c->block_size) ?  in mlxsw_i2c_write()
351 			     mlxsw_i2c->block_size : in_mbox_size;  in mlxsw_i2c_write()
355 		       mlxsw_i2c->block_size * i, chunk_size);  in mlxsw_i2c_write()
380 	err = mlxsw_i2c_write_cmd(client, mlxsw_i2c, 0);  in mlxsw_i2c_write()
388 	err = mlxsw_i2c_wait_go_bit(client, mlxsw_i2c, p_status);  in mlxsw_i2c_write()
412 	struct mlxsw_i2c *mlxsw_i2c = i2c_get_clientdata(client);  in mlxsw_i2c_cmd()  local
416 	int off = mlxsw_i2c->cmd.mb_off_out;  in mlxsw_i2c_cmd()
426 		num = reg_size / mlxsw_i2c->block_size;  in mlxsw_i2c_cmd()
427 		if (reg_size % mlxsw_i2c->block_size)  in mlxsw_i2c_cmd()
430 		if (mutex_lock_interruptible(&mlxsw_i2c->cmd.lock) < 0) {  in mlxsw_i2c_cmd()
441 			mutex_unlock(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_cmd()
447 		num = reg_size / mlxsw_i2c->block_size;  in mlxsw_i2c_cmd()
449 		if (mutex_lock_interruptible(&mlxsw_i2c->cmd.lock) < 0) {  in mlxsw_i2c_cmd()
454 		err = mlxsw_i2c_write_init_cmd(client, mlxsw_i2c, opcode,  in mlxsw_i2c_cmd()
463 		chunk_size = (reg_size > mlxsw_i2c->block_size) ?  in mlxsw_i2c_cmd()
464 			     mlxsw_i2c->block_size : reg_size;  in mlxsw_i2c_cmd()
492 	mutex_unlock(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_cmd()
497 	mutex_unlock(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_cmd()
507 	struct mlxsw_i2c *mlxsw_i2c = bus_priv;  in mlxsw_i2c_cmd_exec()  local
509 	return mlxsw_i2c_cmd(mlxsw_i2c->dev, opcode, in_mod, in_mbox_size,  in mlxsw_i2c_cmd_exec()
530 	struct mlxsw_i2c *mlxsw_i2c = bus_priv;  in mlxsw_i2c_init()  local
534 	mlxsw_i2c->core = mlxsw_core;  in mlxsw_i2c_init()
544 	mlxsw_i2c->bus_info.fw_rev.major =  in mlxsw_i2c_init()
546 	mlxsw_i2c->bus_info.fw_rev.minor =  in mlxsw_i2c_init()
548 	mlxsw_i2c->bus_info.fw_rev.subminor =  in mlxsw_i2c_init()
560 	struct mlxsw_i2c *mlxsw_i2c = bus_priv;  in mlxsw_i2c_fini()  local
562 	mlxsw_i2c->core = NULL;  in mlxsw_i2c_fini()
567 	struct mlxsw_i2c *mlxsw_i2c;  in mlxsw_i2c_work_handler()  local
569 	mlxsw_i2c = container_of(work, struct mlxsw_i2c, irq_work);  in mlxsw_i2c_work_handler()
570 	mlxsw_core_irq_event_handlers_call(mlxsw_i2c->core);  in mlxsw_i2c_work_handler()
575 	struct mlxsw_i2c *mlxsw_i2c = dev;  in mlxsw_i2c_irq_handler()  local
577 	mlxsw_core_schedule_work(&mlxsw_i2c->irq_work);  in mlxsw_i2c_irq_handler()
585 static int mlxsw_i2c_irq_init(struct mlxsw_i2c *mlxsw_i2c, u8 addr)  in mlxsw_i2c_irq_init()  argument
597 	if (mlxsw_i2c->pdata && mlxsw_i2c->pdata->irq)  in mlxsw_i2c_irq_init()
598 		mlxsw_i2c->irq = mlxsw_i2c->pdata->irq;  in mlxsw_i2c_irq_init()
600 		mlxsw_i2c->irq = MLXSW_I2C_DEFAULT_IRQ;  in mlxsw_i2c_irq_init()
602 	if (!mlxsw_i2c->irq)  in mlxsw_i2c_irq_init()
605 	INIT_WORK(&mlxsw_i2c->irq_work, mlxsw_i2c_work_handler);  in mlxsw_i2c_irq_init()
606 	err = request_irq(mlxsw_i2c->irq, mlxsw_i2c_irq_handler,  in mlxsw_i2c_irq_init()
608 			  mlxsw_i2c);  in mlxsw_i2c_irq_init()
610 		dev_err(mlxsw_i2c->bus_info.dev, "Failed to request irq: %d\n",  in mlxsw_i2c_irq_init()
618 static void mlxsw_i2c_irq_fini(struct mlxsw_i2c *mlxsw_i2c)  in mlxsw_i2c_irq_fini()  argument
620 	if (!IS_REACHABLE(CONFIG_MLXREG_HOTPLUG) || !mlxsw_i2c->irq)  in mlxsw_i2c_irq_fini()
622 	cancel_work_sync(&mlxsw_i2c->irq_work);  in mlxsw_i2c_irq_fini()
623 	free_irq(mlxsw_i2c->irq, mlxsw_i2c);  in mlxsw_i2c_irq_fini()
639 	struct mlxsw_i2c *mlxsw_i2c;  in mlxsw_i2c_probe()  local
643 	mlxsw_i2c = devm_kzalloc(&client->dev, sizeof(*mlxsw_i2c), GFP_KERNEL);  in mlxsw_i2c_probe()
644 	if (!mlxsw_i2c)  in mlxsw_i2c_probe()
656 		mlxsw_i2c->block_size = max_t(u16, MLXSW_I2C_BLK_DEF,  in mlxsw_i2c_probe()
660 		mlxsw_i2c->block_size = MLXSW_I2C_BLK_DEF;  in mlxsw_i2c_probe()
663 	i2c_set_clientdata(client, mlxsw_i2c);  in mlxsw_i2c_probe()
664 	mutex_init(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_probe()
679 	err = mlxsw_i2c_write_cmd(client, mlxsw_i2c, 1);  in mlxsw_i2c_probe()
686 	err = mlxsw_i2c_wait_go_bit(client, mlxsw_i2c, &status);  in mlxsw_i2c_probe()
701 	err = mlxsw_i2c_get_mbox(client, mlxsw_i2c);  in mlxsw_i2c_probe()
708 		 id->name, mlxsw_i2c->cmd.mb_size_in,  in mlxsw_i2c_probe()
709 		 mlxsw_i2c->cmd.mb_off_in, mlxsw_i2c->cmd.mb_size_out,  in mlxsw_i2c_probe()
710 		 mlxsw_i2c->cmd.mb_off_out);  in mlxsw_i2c_probe()
713 	mlxsw_i2c->bus_info.device_kind = id->name;  in mlxsw_i2c_probe()
714 	mlxsw_i2c->bus_info.device_name = client->name;  in mlxsw_i2c_probe()
715 	mlxsw_i2c->bus_info.dev = &client->dev;  in mlxsw_i2c_probe()
716 	mlxsw_i2c->bus_info.low_frequency = true;  in mlxsw_i2c_probe()
717 	mlxsw_i2c->dev = &client->dev;  in mlxsw_i2c_probe()
718 	mlxsw_i2c->pdata = client->dev.platform_data;  in mlxsw_i2c_probe()
720 	err = mlxsw_i2c_irq_init(mlxsw_i2c, client->addr);  in mlxsw_i2c_probe()
724 	err = mlxsw_core_bus_device_register(&mlxsw_i2c->bus_info,  in mlxsw_i2c_probe()
725 					     &mlxsw_i2c_bus, mlxsw_i2c, false,  in mlxsw_i2c_probe()
735 	mlxsw_i2c_irq_fini(mlxsw_i2c);  in mlxsw_i2c_probe()
737 	mutex_destroy(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_probe()
745 	struct mlxsw_i2c *mlxsw_i2c = i2c_get_clientdata(client);  in mlxsw_i2c_remove()  local
747 	mlxsw_core_bus_device_unregister(mlxsw_i2c->core, false);  in mlxsw_i2c_remove()
748 	mlxsw_i2c_irq_fini(mlxsw_i2c);  in mlxsw_i2c_remove()
749 	mutex_destroy(&mlxsw_i2c->cmd.lock);  in mlxsw_i2c_remove()