Input: omap4-keypad - use platform device helpers

Get mem and irq resources using platform helpers

 - platform_get_base
 - platform_get_irq

Signed-off-by: Abraham Arce <x0066660@ti.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/arch/arm/plat-omap/include/plat/omap4-keypad.h b/arch/arm/plat-omap/include/plat/omap4-keypad.h
index 522a8ab..2b1d9bc 100644 (file)
--- a/arch/arm/plat-omap/include/plat/omap4-keypad.h
+++ b/arch/arm/plat-omap/include/plat/omap4-keypad.h
@@ -8,9 +8,7 @@ struct omap4_keypad_platform_data {
 
        u8 rows;
        u8 cols;
-
-       u16 irq;
-       void __iomem *base;
 };
 
+extern int omap4_keyboard_init(struct omap4_keypad_platform_data *);
 #endif

diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index 975f8bb..788169d 100644 (file)
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -148,7 +148,10 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
        const struct omap4_keypad_platform_data *pdata;
        struct omap4_keypad *keypad_data;
        struct input_dev *input_dev;
+       struct resource *res;
+       resource_size_t size;
        unsigned int row_shift, max_keys;
+       int irq;
        int error;
 
        /* platform data */
@@ -158,12 +161,14 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
                return -EINVAL;
        }
 
-       if (!pdata->base) {
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!res) {
                dev_err(&pdev->dev, "no base address specified\n");
                return -EINVAL;
        }
 
-       if (!pdata->irq) {
+       irq = platform_get_irq(pdev, 0);
+       if (!irq) {
                dev_err(&pdev->dev, "no keyboard irq assigned\n");
                return -EINVAL;
        }
@@ -184,9 +189,23 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
                return -ENOMEM;
        }
 
-       keypad_data->base = pdata->base;
-       keypad_data->irq = pdata->irq;
+       size = resource_size(res);
+
+       res = request_mem_region(res->start, size, pdev->name);
+       if (!res) {
+               dev_err(&pdev->dev, "can't request mem region\n");
+               error = -EBUSY;
+               goto err_free_keypad;
+       }
 
+       keypad_data->base = ioremap(res->start, resource_size(res));
+       if (!keypad_data->base) {
+               dev_err(&pdev->dev, "can't ioremap mem resource\n");
+               error = -ENOMEM;
+               goto err_release_mem;
+       }
+
+       keypad_data->irq = irq;
        keypad_data->row_shift = row_shift;
        keypad_data->rows = pdata->rows;
        keypad_data->cols = pdata->cols;
@@ -195,7 +214,7 @@ static int __devinit omap4_keypad_probe(struct platform_device *pdev)
        keypad_data->input = input_dev = input_allocate_device();
        if (!input_dev) {
                error = -ENOMEM;
-               goto err_free_keypad;
+               goto err_unmap;
        }
 
        input_dev->name = pdev->name;
@@ -243,6 +262,10 @@ err_free_irq:
        free_irq(keypad_data->irq, keypad_data);
 err_free_input:
        input_free_device(input_dev);
+err_unmap:
+       iounmap(keypad_data->base);
+err_release_mem:
+       release_mem_region(res->start, size);
 err_free_keypad:
        kfree(keypad_data);
        return error;
@@ -251,9 +274,16 @@ err_free_keypad:
 static int __devexit omap4_keypad_remove(struct platform_device *pdev)
 {
        struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
+       struct resource *res;
 
        free_irq(keypad_data->irq, keypad_data);
        input_unregister_device(keypad_data->input);
+
+       iounmap(keypad_data->base);
+
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       release_mem_region(res->start, resource_size(res));
+
        kfree(keypad_data);
        platform_set_drvdata(pdev, NULL);