struct input_dev *key_dev;
        struct resource *res, *mem;
        struct device *dev = &pdev->dev;
-       struct davinci_ks_platform_data *pdata = dev_get_platdata(&pdev->dev);
+       struct davinci_ks_platform_data *pdata = dev_get_platdata(dev);
        int error, i;
 
        if (pdata->device_enable) {
 
        key_dev->name = "davinci_keyscan";
        key_dev->phys = "davinci_keyscan/input0";
-       key_dev->dev.parent = &pdev->dev;
+       key_dev->dev.parent = dev;
        key_dev->id.bustype = BUS_HOST;
        key_dev->id.vendor = 0x0001;
        key_dev->id.product = 0x0001;
 
                if (button->active_low)
                        flags |= GPIOF_ACTIVE_LOW;
 
-               error = devm_gpio_request_one(&pdev->dev, button->gpio, flags,
-                                             desc);
+               error = devm_gpio_request_one(dev, button->gpio, flags, desc);
                if (error < 0) {
                        dev_err(dev, "Failed to request GPIO %d, error %d\n",
                                button->gpio, error);
         * Install custom action to cancel release timer and
         * workqueue item.
         */
-       error = devm_add_action(&pdev->dev, gpio_keys_quiesce_key, bdata);
+       error = devm_add_action(dev, gpio_keys_quiesce_key, bdata);
        if (error) {
-               dev_err(&pdev->dev,
-                       "failed to register quiesce action, error: %d\n",
+               dev_err(dev, "failed to register quiesce action, error: %d\n",
                        error);
                return error;
        }
        if (!button->can_disable)
                irqflags |= IRQF_SHARED;
 
-       error = devm_request_any_context_irq(&pdev->dev, bdata->irq,
-                                            isr, irqflags, desc, bdata);
+       error = devm_request_any_context_irq(dev, bdata->irq, isr, irqflags,
+                                            desc, bdata);
        if (error < 0) {
                dev_err(dev, "Unable to claim irq %d; error %d\n",
                        bdata->irq, error);
 
        input->name = pdata->name ? : pdev->name;
        input->phys = "gpio-keys/input0";
-       input->dev.parent = &pdev->dev;
+       input->dev.parent = dev;
        input->open = gpio_keys_open;
        input->close = gpio_keys_close;
 
                const struct gpio_keys_button *button = &pdata->buttons[i];
 
                if (!dev_get_platdata(dev)) {
-                       child = device_get_next_child_node(&pdev->dev, child);
+                       child = device_get_next_child_node(dev, child);
                        if (!child) {
-                               dev_err(&pdev->dev,
+                               dev_err(dev,
                                        "missing child device node for entry %d\n",
                                        i);
                                return -EINVAL;
 
        fwnode_handle_put(child);
 
-       error = sysfs_create_group(&pdev->dev.kobj, &gpio_keys_attr_group);
+       error = sysfs_create_group(&dev->kobj, &gpio_keys_attr_group);
        if (error) {
                dev_err(dev, "Unable to export keys/switches, error: %d\n",
                        error);
                goto err_remove_group;
        }
 
-       device_init_wakeup(&pdev->dev, wakeup);
+       device_init_wakeup(dev, wakeup);
 
        return 0;
 
 err_remove_group:
-       sysfs_remove_group(&pdev->dev.kobj, &gpio_keys_attr_group);
+       sysfs_remove_group(&dev->kobj, &gpio_keys_attr_group);
        return error;
 }
 
 
 
        size = sizeof(struct gpio_keys_polled_dev) +
                        pdata->nbuttons * sizeof(struct gpio_keys_button_data);
-       bdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
+       bdev = devm_kzalloc(dev, size, GFP_KERNEL);
        if (!bdev) {
                dev_err(dev, "no memory for private data\n");
                return -ENOMEM;
        }
 
-       poll_dev = devm_input_allocate_polled_device(&pdev->dev);
+       poll_dev = devm_input_allocate_polled_device(dev);
        if (!poll_dev) {
                dev_err(dev, "no memory for polled device\n");
                return -ENOMEM;
                        if (button->active_low)
                                flags |= GPIOF_ACTIVE_LOW;
 
-                       error = devm_gpio_request_one(&pdev->dev, button->gpio,
+                       error = devm_gpio_request_one(dev, button->gpio,
                                        flags, button->desc ? : DRV_NAME);
                        if (error) {
                                dev_err(dev,
 
        int i;
 
        if (!client->irq) {
-               dev_err(&client->dev, "irq number should not be zero\n");
+               dev_err(dev, "irq number should not be zero\n");
                return -EINVAL;
        }
 
 
        vdd_uv = regulator_get_voltage(vdd_supply);
 
-       mpr121 = devm_kzalloc(&client->dev, sizeof(*mpr121), GFP_KERNEL);
+       mpr121 = devm_kzalloc(dev, sizeof(*mpr121), GFP_KERNEL);
        if (!mpr121)
                return -ENOMEM;
 
-       input_dev = devm_input_allocate_device(&client->dev);
+       input_dev = devm_input_allocate_device(dev);
        if (!input_dev)
                return -ENOMEM;
 
 
        input_dev->name = "Freescale MPR121 Touchkey";
        input_dev->id.bustype = BUS_I2C;
-       input_dev->dev.parent = &client->dev;
+       input_dev->dev.parent = dev;
        if (device_property_read_bool(dev, "autorepeat"))
                __set_bit(EV_REP, input_dev->evbit);
        input_set_capability(input_dev, EV_MSC, MSC_SCAN);
 
        error = mpr121_phys_init(mpr121, client, vdd_uv);
        if (error) {
-               dev_err(&client->dev, "Failed to init register\n");
+               dev_err(dev, "Failed to init register\n");
                return error;
        }
 
-       error = devm_request_threaded_irq(&client->dev, client->irq,
-                                         NULL, mpr_touchkey_interrupt,
+       error = devm_request_threaded_irq(dev, client->irq, NULL,
+                                         mpr_touchkey_interrupt,
                                          IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-                                         client->dev.driver->name, mpr121);
+                                         dev->driver->name, mpr121);
        if (error) {
-               dev_err(&client->dev, "Failed to register interrupt\n");
+               dev_err(dev, "Failed to register interrupt\n");
                return error;
        }