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path: root/drivers/input/keyboard/ep93xx_keypad.c
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Diffstat (limited to 'drivers/input/keyboard/ep93xx_keypad.c')
-rw-r--r--drivers/input/keyboard/ep93xx_keypad.c109
1 files changed, 39 insertions, 70 deletions
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index e45740429f7..e59876212b8 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -20,14 +20,16 @@
* flag.
*/
+#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/input/matrix_keypad.h>
+#include <linux/slab.h>
#include <mach/hardware.h>
-#include <mach/ep93xx_keypad.h>
+#include <linux/platform_data/keypad-ep93xx.h>
/*
* Keypad Interface Register offsets
@@ -69,7 +71,7 @@ struct ep93xx_keypad {
void __iomem *mmio_base;
- unsigned int matrix_keycodes[EP93XX_MATRIX_SIZE];
+ unsigned short keycodes[EP93XX_MATRIX_SIZE];
int key1;
int key2;
@@ -79,24 +81,6 @@ struct ep93xx_keypad {
bool enabled;
};
-static void ep93xx_keypad_build_keycode(struct ep93xx_keypad *keypad)
-{
- struct ep93xx_keypad_platform_data *pdata = keypad->pdata;
- struct input_dev *input_dev = keypad->input_dev;
- unsigned int *key;
- int i;
-
- key = &pdata->matrix_key_map[0];
- for (i = 0; i < pdata->matrix_key_map_size; i++, key++) {
- int row = KEY_ROW(*key);
- int col = KEY_COL(*key);
- int code = KEY_VAL(*key);
-
- keypad->matrix_keycodes[(row << 3) + col] = code;
- __set_bit(code, input_dev->keybit);
- }
-}
-
static irqreturn_t ep93xx_keypad_irq_handler(int irq, void *dev_id)
{
struct ep93xx_keypad *keypad = dev_id;
@@ -107,10 +91,10 @@ static irqreturn_t ep93xx_keypad_irq_handler(int irq, void *dev_id)
status = __raw_readl(keypad->mmio_base + KEY_REG);
keycode = (status & KEY_REG_KEY1_MASK) >> KEY_REG_KEY1_SHIFT;
- key1 = keypad->matrix_keycodes[keycode];
+ key1 = keypad->keycodes[keycode];
keycode = (status & KEY_REG_KEY2_MASK) >> KEY_REG_KEY2_SHIFT;
- key2 = keypad->matrix_keycodes[keycode];
+ key2 = keypad->keycodes[keycode];
if (status & KEY_REG_2KEYS) {
if (keypad->key1 && key1 != keypad->key1 && key2 != keypad->key1)
@@ -198,16 +182,10 @@ static void ep93xx_keypad_close(struct input_dev *pdev)
}
-#ifdef CONFIG_PM
-/*
- * NOTE: I don't know if this is correct, or will work on the ep93xx.
- *
- * None of the existing ep93xx drivers have power management support.
- * But, this is basically what the pxa27x_keypad driver does.
- */
-static int ep93xx_keypad_suspend(struct platform_device *pdev,
- pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int ep93xx_keypad_suspend(struct device *dev)
{
+ struct platform_device *pdev = to_platform_device(dev);
struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
struct input_dev *input_dev = keypad->input_dev;
@@ -226,8 +204,9 @@ static int ep93xx_keypad_suspend(struct platform_device *pdev,
return 0;
}
-static int ep93xx_keypad_resume(struct platform_device *pdev)
+static int ep93xx_keypad_resume(struct device *dev)
{
+ struct platform_device *pdev = to_platform_device(dev);
struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
struct input_dev *input_dev = keypad->input_dev;
@@ -248,14 +227,15 @@ static int ep93xx_keypad_resume(struct platform_device *pdev)
return 0;
}
-#else /* !CONFIG_PM */
-#define ep93xx_keypad_suspend NULL
-#define ep93xx_keypad_resume NULL
-#endif /* !CONFIG_PM */
+#endif
+
+static SIMPLE_DEV_PM_OPS(ep93xx_keypad_pm_ops,
+ ep93xx_keypad_suspend, ep93xx_keypad_resume);
-static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
+static int ep93xx_keypad_probe(struct platform_device *pdev)
{
struct ep93xx_keypad *keypad;
+ const struct matrix_keymap_data *keymap_data;
struct input_dev *input_dev;
struct resource *res;
int err;
@@ -264,12 +244,18 @@ static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
if (!keypad)
return -ENOMEM;
- keypad->pdata = pdev->dev.platform_data;
+ keypad->pdata = dev_get_platdata(&pdev->dev);
if (!keypad->pdata) {
err = -EINVAL;
goto failed_free;
}
+ keymap_data = keypad->pdata->keymap_data;
+ if (!keymap_data) {
+ err = -EINVAL;
+ goto failed_free;
+ }
+
keypad->irq = platform_get_irq(pdev, 0);
if (!keypad->irq) {
err = -ENXIO;
@@ -317,21 +303,19 @@ static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
input_dev->open = ep93xx_keypad_open;
input_dev->close = ep93xx_keypad_close;
input_dev->dev.parent = &pdev->dev;
- input_dev->keycode = keypad->matrix_keycodes;
- input_dev->keycodesize = sizeof(keypad->matrix_keycodes[0]);
- input_dev->keycodemax = ARRAY_SIZE(keypad->matrix_keycodes);
- input_set_drvdata(input_dev, keypad);
+ err = matrix_keypad_build_keymap(keymap_data, NULL,
+ EP93XX_MATRIX_ROWS, EP93XX_MATRIX_COLS,
+ keypad->keycodes, input_dev);
+ if (err)
+ goto failed_free_dev;
- input_dev->evbit[0] = BIT_MASK(EV_KEY);
if (keypad->pdata->flags & EP93XX_KEYPAD_AUTOREPEAT)
- input_dev->evbit[0] |= BIT_MASK(EV_REP);
-
- ep93xx_keypad_build_keycode(keypad);
- platform_set_drvdata(pdev, keypad);
+ __set_bit(EV_REP, input_dev->evbit);
+ input_set_drvdata(input_dev, keypad);
err = request_irq(keypad->irq, ep93xx_keypad_irq_handler,
- IRQF_DISABLED, pdev->name, keypad);
+ 0, pdev->name, keypad);
if (err)
goto failed_free_dev;
@@ -339,13 +323,13 @@ static int __devinit ep93xx_keypad_probe(struct platform_device *pdev)
if (err)
goto failed_free_irq;
+ platform_set_drvdata(pdev, keypad);
device_init_wakeup(&pdev->dev, 1);
return 0;
failed_free_irq:
- free_irq(keypad->irq, pdev);
- platform_set_drvdata(pdev, NULL);
+ free_irq(keypad->irq, keypad);
failed_free_dev:
input_free_device(input_dev);
failed_put_clk:
@@ -361,14 +345,12 @@ failed_free:
return err;
}
-static int __devexit ep93xx_keypad_remove(struct platform_device *pdev)
+static int ep93xx_keypad_remove(struct platform_device *pdev)
{
struct ep93xx_keypad *keypad = platform_get_drvdata(pdev);
struct resource *res;
- free_irq(keypad->irq, pdev);
-
- platform_set_drvdata(pdev, NULL);
+ free_irq(keypad->irq, keypad);
if (keypad->enabled)
clk_disable(keypad->clk);
@@ -392,25 +374,12 @@ static struct platform_driver ep93xx_keypad_driver = {
.driver = {
.name = "ep93xx-keypad",
.owner = THIS_MODULE,
+ .pm = &ep93xx_keypad_pm_ops,
},
.probe = ep93xx_keypad_probe,
- .remove = __devexit_p(ep93xx_keypad_remove),
- .suspend = ep93xx_keypad_suspend,
- .resume = ep93xx_keypad_resume,
+ .remove = ep93xx_keypad_remove,
};
-
-static int __init ep93xx_keypad_init(void)
-{
- return platform_driver_register(&ep93xx_keypad_driver);
-}
-
-static void __exit ep93xx_keypad_exit(void)
-{
- platform_driver_unregister(&ep93xx_keypad_driver);
-}
-
-module_init(ep93xx_keypad_init);
-module_exit(ep93xx_keypad_exit);
+module_platform_driver(ep93xx_keypad_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 12:00:41 +0000