diff options
Diffstat (limited to 'drivers/input/keyboard/twl4030_keypad.c')
| -rw-r--r-- | drivers/input/keyboard/twl4030_keypad.c | 70 |
1 files changed, 22 insertions, 48 deletions
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index f663c1953ba..71eb0411e37 100644 --- a/drivers/input/keyboard/twl4030_keypad.c +++ b/drivers/input/keyboard/twl4030_keypad.c @@ -339,12 +339,13 @@ static int twl4030_kp_probe(struct platform_device *pdev) u8 reg; int error; - kp = kzalloc(sizeof(*kp), GFP_KERNEL); - input = input_allocate_device(); - if (!kp || !input) { - error = -ENOMEM; - goto err1; - } + kp = devm_kzalloc(&pdev->dev, sizeof(*kp), GFP_KERNEL); + if (!kp) + return -ENOMEM; + + input = devm_input_allocate_device(&pdev->dev); + if (!input) + return -ENOMEM; /* get the debug device */ kp->dbg_dev = &pdev->dev; @@ -353,7 +354,6 @@ static int twl4030_kp_probe(struct platform_device *pdev) /* setup input device */ input->name = "TWL4030 Keypad"; input->phys = "twl4030_keypad/input0"; - input->dev.parent = &pdev->dev; input->id.bustype = BUS_HOST; input->id.vendor = 0x0001; @@ -363,8 +363,7 @@ static int twl4030_kp_probe(struct platform_device *pdev) if (pdata) { if (!pdata->rows || !pdata->cols || !pdata->keymap_data) { dev_err(&pdev->dev, "Missing platform_data\n"); - error = -EINVAL; - goto err1; + return -EINVAL; } kp->n_rows = pdata->rows; @@ -375,7 +374,7 @@ static int twl4030_kp_probe(struct platform_device *pdev) error = matrix_keypad_parse_of_params(&pdev->dev, &kp->n_rows, &kp->n_cols); if (error) - goto err1; + return error; kp->autorepeat = true; } @@ -383,15 +382,13 @@ static int twl4030_kp_probe(struct platform_device *pdev) if (kp->n_rows > TWL4030_MAX_ROWS || kp->n_cols > TWL4030_MAX_COLS) { dev_err(&pdev->dev, "Invalid rows/cols amount specified in platform/devicetree data\n"); - error = -EINVAL; - goto err1; + return -EINVAL; } kp->irq = platform_get_irq(pdev, 0); if (!kp->irq) { dev_err(&pdev->dev, "no keyboard irq assigned\n"); - error = -EINVAL; - goto err1; + return -EINVAL; } error = matrix_keypad_build_keymap(keymap_data, NULL, @@ -400,7 +397,7 @@ static int twl4030_kp_probe(struct platform_device *pdev) kp->keymap, input); if (error) { dev_err(kp->dbg_dev, "Failed to build keymap\n"); - goto err1; + return error; } input_set_capability(input, EV_MSC, MSC_SCAN); @@ -412,12 +409,12 @@ static int twl4030_kp_probe(struct platform_device *pdev) if (error) { dev_err(kp->dbg_dev, "Unable to register twl4030 keypad device\n"); - goto err1; + return error; } error = twl4030_kp_program(kp); if (error) - goto err2; + return error; /* * This ISR will always execute in kernel thread context because of @@ -425,46 +422,24 @@ static int twl4030_kp_probe(struct platform_device *pdev) * * NOTE: we assume this host is wired to TWL4040 INT1, not INT2 ... */ - error = request_threaded_irq(kp->irq, NULL, do_kp_irq, - 0, pdev->name, kp); + error = devm_request_threaded_irq(&pdev->dev, kp->irq, NULL, do_kp_irq, + 0, pdev->name, kp); if (error) { - dev_info(kp->dbg_dev, "request_irq failed for irq no=%d\n", - kp->irq); - goto err2; + dev_info(kp->dbg_dev, "request_irq failed for irq no=%d: %d\n", + kp->irq, error); + return error; } /* Enable KP and TO interrupts now. */ reg = (u8) ~(KEYP_IMR1_KP | KEYP_IMR1_TO); if (twl4030_kpwrite_u8(kp, reg, KEYP_IMR1)) { - error = -EIO; - goto err3; + /* mask all events - we don't care about the result */ + (void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1); + return -EIO; } platform_set_drvdata(pdev, kp); return 0; - -err3: - /* mask all events - we don't care about the result */ - (void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1); - free_irq(kp->irq, kp); -err2: - input_unregister_device(input); - input = NULL; -err1: - input_free_device(input); - kfree(kp); - return error; -} - -static int twl4030_kp_remove(struct platform_device *pdev) -{ - struct twl4030_keypad *kp = platform_get_drvdata(pdev); - - free_irq(kp->irq, kp); - input_unregister_device(kp->input); - kfree(kp); - - return 0; } #ifdef CONFIG_OF @@ -483,7 +458,6 @@ MODULE_DEVICE_TABLE(of, twl4030_keypad_dt_match_table); static struct platform_driver twl4030_kp_driver = { .probe = twl4030_kp_probe, - .remove = twl4030_kp_remove, .driver = { .name = "twl4030_keypad", .owner = THIS_MODULE, |