summaryrefslogtreecommitdiff
path: root/drivers/input/misc/ab8500-ponkey.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/input/misc/ab8500-ponkey.c')
-rw-r--r--drivers/input/misc/ab8500-ponkey.c213
1 files changed, 146 insertions, 67 deletions
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
index 350fd0c385d..c3c3c51d302 100644
--- a/drivers/input/misc/ab8500-ponkey.c
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -6,7 +6,6 @@
*
* AB8500 Power-On Key handler
*/
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -14,128 +13,208 @@
#include <linux/interrupt.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/slab.h>
+#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab5500.h>
+
+/* Ponkey time control bits */
+#define AB5500_MCB 0x2F
+#define AB5500_PONKEY_10SEC 0x0
+#define AB5500_PONKEY_5SEC 0x1
+#define AB5500_PONKEY_DISABLE 0x2
+#define AB5500_PONKEY_TMR_MASK 0x1
+#define AB5500_PONKEY_TR_MASK 0x2
+
+static int ab5500_ponkey_hw_init(struct platform_device *);
+
+struct ab8500_ponkey_variant {
+ const char *irq_falling;
+ const char *irq_rising;
+ int (*hw_init)(struct platform_device *);
+};
+
+static const struct ab8500_ponkey_variant ab5500_onswa = {
+ .irq_falling = "ONSWAn_falling",
+ .irq_rising = "ONSWAn_rising",
+ .hw_init = ab5500_ponkey_hw_init,
+};
+
+static const struct ab8500_ponkey_variant ab8500_ponkey = {
+ .irq_falling = "ONKEY_DBF",
+ .irq_rising = "ONKEY_DBR",
+};
/**
- * struct ab8500_ponkey - ab8500 ponkey information
+ * struct ab8500_ponkey_info - ab8500 ponkey information
* @input_dev: pointer to input device
- * @ab8500: ab8500 parent
* @irq_dbf: irq number for falling transition
* @irq_dbr: irq number for rising transition
*/
-struct ab8500_ponkey {
+struct ab8500_ponkey_info {
struct input_dev *idev;
- struct ab8500 *ab8500;
int irq_dbf;
int irq_dbr;
};
+static int ab5500_ponkey_hw_init(struct platform_device *pdev)
+{
+ u8 val;
+ struct ab5500_ponkey_platform_data *pdata;
+
+ pdata = pdev->dev.platform_data;
+ if (pdata) {
+ switch (pdata->shutdown_secs) {
+ case 0:
+ val = AB5500_PONKEY_DISABLE;
+ break;
+ case 5:
+ val = AB5500_PONKEY_5SEC;
+ break;
+ case 10:
+ val = AB5500_PONKEY_10SEC;
+ break;
+ default:
+ val = AB5500_PONKEY_10SEC;
+ }
+ } else {
+ val = AB5500_PONKEY_10SEC;
+ }
+ return abx500_mask_and_set(
+ &pdev->dev,
+ AB5500_BANK_STARTUP,
+ AB5500_MCB,
+ AB5500_PONKEY_TMR_MASK | AB5500_PONKEY_TR_MASK,
+ val);
+}
+
/* AB8500 gives us an interrupt when ONKEY is held */
static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
{
- struct ab8500_ponkey *ponkey = data;
+ struct ab8500_ponkey_info *info = data;
- if (irq == ponkey->irq_dbf)
- input_report_key(ponkey->idev, KEY_POWER, true);
- else if (irq == ponkey->irq_dbr)
- input_report_key(ponkey->idev, KEY_POWER, false);
+ if (irq == info->irq_dbf)
+ input_report_key(info->idev, KEY_POWER, true);
+ else if (irq == info->irq_dbr)
+ input_report_key(info->idev, KEY_POWER, false);
- input_sync(ponkey->idev);
+ input_sync(info->idev);
return IRQ_HANDLED;
}
static int __devinit ab8500_ponkey_probe(struct platform_device *pdev)
{
- struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
- struct ab8500_ponkey *ponkey;
- struct input_dev *input;
- int irq_dbf, irq_dbr;
- int error;
+ const struct ab8500_ponkey_variant *variant;
+ struct ab8500_ponkey_info *info;
+ int irq_dbf, irq_dbr, ret;
+
+ variant = (const struct ab8500_ponkey_variant *)
+ pdev->id_entry->driver_data;
+
+ if (variant->hw_init) {
+ ret = variant->hw_init(pdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to init hw");
+ return ret;
+ }
+ }
- irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
+ irq_dbf = platform_get_irq_byname(pdev, variant->irq_falling);
if (irq_dbf < 0) {
- dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
+ dev_err(&pdev->dev, "No IRQ for %s: %d\n",
+ variant->irq_falling, irq_dbf);
return irq_dbf;
}
- irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
+ irq_dbr = platform_get_irq_byname(pdev, variant->irq_rising);
if (irq_dbr < 0) {
- dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
+ dev_err(&pdev->dev, "No IRQ for %s: %d\n",
+ variant->irq_rising, irq_dbr);
return irq_dbr;
}
- ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
- input = input_allocate_device();
- if (!ponkey || !input) {
- error = -ENOMEM;
- goto err_free_mem;
- }
+ info = kzalloc(sizeof(struct ab8500_ponkey_info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
- ponkey->idev = input;
- ponkey->ab8500 = ab8500;
- ponkey->irq_dbf = irq_dbf;
- ponkey->irq_dbr = irq_dbr;
+ info->irq_dbf = irq_dbf;
+ info->irq_dbr = irq_dbr;
- input->name = "AB8500 POn(PowerOn) Key";
- input->dev.parent = &pdev->dev;
+ info->idev = input_allocate_device();
+ if (!info->idev) {
+ dev_err(&pdev->dev, "Failed to allocate input dev\n");
+ ret = -ENOMEM;
+ goto out;
+ }
- input_set_capability(input, EV_KEY, KEY_POWER);
+ info->idev->name = "AB8500 POn(PowerOn) Key";
+ info->idev->dev.parent = &pdev->dev;
+ info->idev->evbit[0] = BIT_MASK(EV_KEY);
+ info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
- error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
- 0, "ab8500-ponkey-dbf", ponkey);
- if (error < 0) {
- dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
- ponkey->irq_dbf, error);
- goto err_free_mem;
+ ret = input_register_device(info->idev);
+ if (ret) {
+ dev_err(&pdev->dev, "Can't register input device: %d\n", ret);
+ goto out_unfreedevice;
}
- error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
- 0, "ab8500-ponkey-dbr", ponkey);
- if (error < 0) {
- dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
- ponkey->irq_dbr, error);
- goto err_free_dbf_irq;
+ ret = request_threaded_irq(info->irq_dbf, NULL, ab8500_ponkey_handler,
+ IRQF_NO_SUSPEND, "ab8500-ponkey-dbf",
+ info);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to request dbf IRQ#%d: %d\n",
+ info->irq_dbf, ret);
+ goto out_unregisterdevice;
}
- error = input_register_device(ponkey->idev);
- if (error) {
- dev_err(ab8500->dev, "Can't register input device: %d\n", error);
- goto err_free_dbr_irq;
+ ret = request_threaded_irq(info->irq_dbr, NULL, ab8500_ponkey_handler,
+ IRQF_NO_SUSPEND, "ab8500-ponkey-dbr",
+ info);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to request dbr IRQ#%d: %d\n",
+ info->irq_dbr, ret);
+ goto out_irq_dbf;
}
- platform_set_drvdata(pdev, ponkey);
- return 0;
+ platform_set_drvdata(pdev, info);
-err_free_dbr_irq:
- free_irq(ponkey->irq_dbr, ponkey);
-err_free_dbf_irq:
- free_irq(ponkey->irq_dbf, ponkey);
-err_free_mem:
- input_free_device(input);
- kfree(ponkey);
+ return 0;
- return error;
+out_irq_dbf:
+ free_irq(info->irq_dbf, info);
+out_unregisterdevice:
+ input_unregister_device(info->idev);
+ info->idev = NULL;
+out_unfreedevice:
+ input_free_device(info->idev);
+out:
+ kfree(info);
+ return ret;
}
static int __devexit ab8500_ponkey_remove(struct platform_device *pdev)
{
- struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
-
- free_irq(ponkey->irq_dbf, ponkey);
- free_irq(ponkey->irq_dbr, ponkey);
- input_unregister_device(ponkey->idev);
- kfree(ponkey);
-
- platform_set_drvdata(pdev, NULL);
+ struct ab8500_ponkey_info *info = platform_get_drvdata(pdev);
+ free_irq(info->irq_dbf, info);
+ free_irq(info->irq_dbr, info);
+ input_unregister_device(info->idev);
+ kfree(info);
return 0;
}
+static struct platform_device_id ab8500_ponkey_id_table[] = {
+ { "ab5500-onswa", (kernel_ulong_t)&ab5500_onswa, },
+ { "ab8500-poweron-key", (kernel_ulong_t)&ab8500_ponkey, },
+ { },
+};
+MODULE_DEVICE_TABLE(platform, ab8500_ponkey_id_table);
+
static struct platform_driver ab8500_ponkey_driver = {
.driver = {
.name = "ab8500-poweron-key",
.owner = THIS_MODULE,
},
+ .id_table = ab8500_ponkey_id_table,
.probe = ab8500_ponkey_probe,
.remove = __devexit_p(ab8500_ponkey_remove),
};