diff options
Diffstat (limited to 'drivers/input/touchscreen/intel-mid-touch.c')
| -rw-r--r-- | drivers/input/touchscreen/intel-mid-touch.c | 60 |
1 files changed, 22 insertions, 38 deletions
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c index cf299377fc4..c38ca4a7e38 100644 --- a/drivers/input/touchscreen/intel-mid-touch.c +++ b/drivers/input/touchscreen/intel-mid-touch.c @@ -27,7 +27,6 @@ */ #include <linux/module.h> -#include <linux/init.h> #include <linux/input.h> #include <linux/interrupt.h> #include <linux/err.h> @@ -37,6 +36,7 @@ #include <linux/irq.h> #include <linux/delay.h> #include <asm/intel_scu_ipc.h> +#include <linux/device.h> /* PMIC Interrupt registers */ #define PMIC_REG_ID1 0x00 /* PMIC ID1 register */ @@ -427,7 +427,7 @@ out: } /* Utility to read PMIC ID */ -static int __devinit mrstouch_read_pmic_id(uint *vendor, uint *rev) +static int mrstouch_read_pmic_id(uint *vendor, uint *rev) { int err; u8 r; @@ -446,7 +446,7 @@ static int __devinit mrstouch_read_pmic_id(uint *vendor, uint *rev) * Parse ADC channels to find end of the channel configured by other ADC user * NEC and MAXIM requires 4 channels and FreeScale needs 18 channels */ -static int __devinit mrstouch_chan_parse(struct mrstouch_dev *tsdev) +static int mrstouch_chan_parse(struct mrstouch_dev *tsdev) { int found = 0; int err, i; @@ -478,7 +478,7 @@ static int __devinit mrstouch_chan_parse(struct mrstouch_dev *tsdev) /* * Writes touch screen channels to ADC address selection registers */ -static int __devinit mrstouch_ts_chan_set(uint offset) +static int mrstouch_ts_chan_set(uint offset) { u16 chan; @@ -494,7 +494,7 @@ static int __devinit mrstouch_ts_chan_set(uint offset) } /* Initialize ADC */ -static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev) +static int mrstouch_adc_init(struct mrstouch_dev *tsdev) { int err, start; u8 ra, rm; @@ -568,7 +568,7 @@ static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev) /* Probe function for touch screen driver */ -static int __devinit mrstouch_probe(struct platform_device *pdev) +static int mrstouch_probe(struct platform_device *pdev) { struct mrstouch_dev *tsdev; struct input_dev *input; @@ -581,12 +581,17 @@ static int __devinit mrstouch_probe(struct platform_device *pdev) return -EINVAL; } - tsdev = kzalloc(sizeof(struct mrstouch_dev), GFP_KERNEL); - input = input_allocate_device(); - if (!tsdev || !input) { + tsdev = devm_kzalloc(&pdev->dev, sizeof(struct mrstouch_dev), + GFP_KERNEL); + if (!tsdev) { dev_err(&pdev->dev, "unable to allocate memory\n"); - err = -ENOMEM; - goto err_free_mem; + return -ENOMEM; + } + + input = devm_input_allocate_device(&pdev->dev); + if (!input) { + dev_err(&pdev->dev, "unable to allocate input device\n"); + return -ENOMEM; } tsdev->dev = &pdev->dev; @@ -599,7 +604,7 @@ static int __devinit mrstouch_probe(struct platform_device *pdev) err = mrstouch_adc_init(tsdev); if (err) { dev_err(&pdev->dev, "ADC initialization failed\n"); - goto err_free_mem; + return err; } input->name = "mrst_touchscreen"; @@ -619,40 +624,20 @@ static int __devinit mrstouch_probe(struct platform_device *pdev) input_set_abs_params(tsdev->input, ABS_PRESSURE, MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0); - err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq, - IRQF_ONESHOT, "mrstouch", tsdev); + err = devm_request_threaded_irq(&pdev->dev, tsdev->irq, NULL, + mrstouch_pendet_irq, IRQF_ONESHOT, + "mrstouch", tsdev); if (err) { dev_err(tsdev->dev, "unable to allocate irq\n"); - goto err_free_mem; + return err; } err = input_register_device(tsdev->input); if (err) { dev_err(tsdev->dev, "unable to register input device\n"); - goto err_free_irq; + return err; } - platform_set_drvdata(pdev, tsdev); - return 0; - -err_free_irq: - free_irq(tsdev->irq, tsdev); -err_free_mem: - input_free_device(input); - kfree(tsdev); - return err; -} - -static int __devexit mrstouch_remove(struct platform_device *pdev) -{ - struct mrstouch_dev *tsdev = platform_get_drvdata(pdev); - - free_irq(tsdev->irq, tsdev); - input_unregister_device(tsdev->input); - kfree(tsdev); - - platform_set_drvdata(pdev, NULL); - return 0; } @@ -662,7 +647,6 @@ static struct platform_driver mrstouch_driver = { .owner = THIS_MODULE, }, .probe = mrstouch_probe, - .remove = __devexit_p(mrstouch_remove), }; module_platform_driver(mrstouch_driver); |