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> @@ -224,6 +225,7 @@ struct cdns_i2c { > unsigned int transfer_size; > bool atomic; > int err_status_atomic; > + int irq; > }; > > struct cdns_platform_data { > @@ -1495,7 +1497,7 @@ static int cdns_i2c_probe(struct platform_device *pdev) > { > struct resource *r_mem; > struct cdns_i2c *id; > - int ret, irq; > + int ret; > const struct of_device_id *match; > > id = devm_kzalloc(&pdev->dev, sizeof(*id), GFP_KERNEL); > @@ -1526,9 +1528,9 @@ static int cdns_i2c_probe(struct platform_device *pdev) > if (IS_ERR(id->membase)) > return PTR_ERR(id->membase); > > - irq = platform_get_irq(pdev, 0); > - if (irq < 0) > - return irq; > + id->irq = platform_get_irq(pdev, 0); > + if (id->irq < 0) > + return id->irq; > > id->adap.owner = THIS_MODULE; > id->adap.dev.of_node = pdev->dev.of_node; > @@ -1590,10 +1592,10 @@ static int cdns_i2c_probe(struct platform_device *pdev) > goto err_clk_notifier_unregister; > } > > - ret = devm_request_irq(&pdev->dev, irq, cdns_i2c_isr, 0, > + ret = devm_request_irq(&pdev->dev, id->irq, cdns_i2c_isr, 0, > DRIVER_NAME, id); > if (ret) { > - dev_err(&pdev->dev, "cannot get irq %d\n", irq); > + dev_err(&pdev->dev, "cannot get irq %d\n", id->irq); > goto err_clk_notifier_unregister; > } > cdns_i2c_init(id); > @@ -1636,6 +1638,23 @@ static void cdns_i2c_remove(struct platform_device *pdev) > reset_control_assert(id->reset); > } > > +/** > + * cdns_i2c_shutdown - Shutdown the i2c device > + * @pdev: Handle to the platform device structure > + * > + * This function handles shutdown sequence > + */ > +static void cdns_i2c_shutdown(struct platform_device *pdev) > +{ > + struct cdns_i2c *id = platform_get_drvdata(pdev); > + > + /* Disable interrupts */ > + disable_irq(id->irq); > + > + /* Initiate failure of client i2c transfers */ > + i2c_mark_adapter_suspended(&id->adap); > +} > + > static struct platform_driver cdns_i2c_drv = { > .driver = { > .name = DRIVER_NAME, > @@ -1644,6 +1663,7 @@ static void cdns_i2c_remove(struct platform_device *pdev) > }, > .probe = cdns_i2c_probe, > .remove = cdns_i2c_remove, > + .shutdown = cdns_i2c_shutdown, > }; > > module_platform_driver(cdns_i2c_drv); Andi: I was checking other drivers and I can't see any other action which should be taken to have proper shutdown. Please let us know if driver should do something else too. Acked-by: Michal Simek Thanks, Michal