diff options
| -rw-r--r-- | drivers/input/misc/max8925_onkey.c | 72 | ||||
| -rw-r--r-- | drivers/mfd/max8925-core.c | 11 |
2 files changed, 62 insertions, 21 deletions
diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c index 80af4460801..7de0ded4ccc 100644 --- a/drivers/input/misc/max8925_onkey.c +++ b/drivers/input/misc/max8925_onkey.c @@ -27,27 +27,37 @@ #include <linux/mfd/max8925.h> #include <linux/slab.h> +#define SW_INPUT (1 << 7) /* 0/1 -- up/down */ #define HARDRESET_EN (1 << 7) #define PWREN_EN (1 << 7) struct max8925_onkey_info { struct input_dev *idev; struct i2c_client *i2c; - int irq; + struct device *dev; + int irq[2]; }; /* - * MAX8925 gives us an interrupt when ONKEY is held for 3 seconds. + * MAX8925 gives us an interrupt when ONKEY is pressed or released. * max8925_set_bits() operates I2C bus and may sleep. So implement * it in thread IRQ handler. */ static irqreturn_t max8925_onkey_handler(int irq, void *data) { struct max8925_onkey_info *info = data; - - input_report_key(info->idev, KEY_POWER, 1); + int ret, event; + + ret = max8925_reg_read(info->i2c, MAX8925_ON_OFF_STATUS); + if (ret & SW_INPUT) + event = 1; + else + event = 0; + input_report_key(info->idev, KEY_POWER, event); input_sync(info->idev); + dev_dbg(info->dev, "onkey event:%d\n", event); + /* Enable hardreset to halt if system isn't shutdown on time */ max8925_set_bits(info->i2c, MAX8925_SYSENSEL, HARDRESET_EN, HARDRESET_EN); @@ -59,14 +69,42 @@ static int __devinit max8925_onkey_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); struct max8925_onkey_info *info; - int error; + int irq[2], error; + + irq[0] = platform_get_irq(pdev, 0); + if (irq[0] < 0) { + dev_err(&pdev->dev, "No IRQ resource!\n"); + return -EINVAL; + } + irq[1] = platform_get_irq(pdev, 1); + if (irq[1] < 0) { + dev_err(&pdev->dev, "No IRQ resource!\n"); + return -EINVAL; + } info = kzalloc(sizeof(struct max8925_onkey_info), GFP_KERNEL); if (!info) return -ENOMEM; info->i2c = chip->i2c; - info->irq = chip->irq_base + MAX8925_IRQ_GPM_SW_3SEC; + info->dev = &pdev->dev; + irq[0] += chip->irq_base; + irq[1] += chip->irq_base; + + error = request_threaded_irq(irq[0], NULL, max8925_onkey_handler, + IRQF_ONESHOT, "onkey-down", info); + if (error < 0) { + dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n", + irq[0], error); + goto out; + } + error = request_threaded_irq(irq[1], NULL, max8925_onkey_handler, + IRQF_ONESHOT, "onkey-up", info); + if (error < 0) { + dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n", + irq[1], error); + goto out_irq; + } info->idev = input_allocate_device(); if (!info->idev) { @@ -79,32 +117,29 @@ static int __devinit max8925_onkey_probe(struct platform_device *pdev) info->idev->phys = "max8925_on/input0"; info->idev->id.bustype = BUS_I2C; info->idev->dev.parent = &pdev->dev; + info->irq[0] = irq[0]; + info->irq[1] = irq[1]; info->idev->evbit[0] = BIT_MASK(EV_KEY); info->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER); - error = request_threaded_irq(info->irq, NULL, max8925_onkey_handler, - IRQF_ONESHOT, "onkey", info); - if (error < 0) { - dev_err(chip->dev, "Failed to request IRQ: #%d: %d\n", - info->irq, error); - goto out_irq; - } error = input_register_device(info->idev); if (error) { dev_err(chip->dev, "Can't register input device: %d\n", error); - goto out; + goto out_reg; } platform_set_drvdata(pdev, info); return 0; -out: - free_irq(info->irq, info); -out_irq: +out_reg: input_free_device(info->idev); out_input: + free_irq(info->irq[1], info); +out_irq: + free_irq(info->irq[0], info); +out: kfree(info); return error; } @@ -113,7 +148,8 @@ static int __devexit max8925_onkey_remove(struct platform_device *pdev) { struct max8925_onkey_info *info = platform_get_drvdata(pdev); - free_irq(info->irq, info); + free_irq(info->irq[0], info); + free_irq(info->irq[1], info); input_unregister_device(info->idev); kfree(info); diff --git a/drivers/mfd/max8925-core.c b/drivers/mfd/max8925-core.c index 428377a5a6f..44695f5a180 100644 --- a/drivers/mfd/max8925-core.c +++ b/drivers/mfd/max8925-core.c @@ -93,8 +93,13 @@ static struct mfd_cell rtc_devs[] = { static struct resource onkey_resources[] = { { .name = "max8925-onkey", - .start = MAX8925_IRQ_GPM_SW_3SEC, - .end = MAX8925_IRQ_GPM_SW_3SEC, + .start = MAX8925_IRQ_GPM_SW_R, + .end = MAX8925_IRQ_GPM_SW_R, + .flags = IORESOURCE_IRQ, + }, { + .name = "max8925-onkey", + .start = MAX8925_IRQ_GPM_SW_F, + .end = MAX8925_IRQ_GPM_SW_F, .flags = IORESOURCE_IRQ, }, }; @@ -102,7 +107,7 @@ static struct resource onkey_resources[] = { static struct mfd_cell onkey_devs[] = { { .name = "max8925-onkey", - .num_resources = 1, + .num_resources = 2, .resources = &onkey_resources[0], .id = -1, }, |