diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/Makefile | 2 | ||||
| -rw-r--r-- | drivers/mfd/pcf50633-core.c | 57 |
2 files changed, 10 insertions, 49 deletions
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 4c684c137d4..85934966a59 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -57,7 +57,7 @@ obj-$(CONFIG_PMIC_DA903X) += da903x.o max8925-objs := max8925-core.o max8925-i2c.o obj-$(CONFIG_MFD_MAX8925) += max8925.o -obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o +obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o pcf50633-irq.o obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o obj-$(CONFIG_ABX500_CORE) += abx500-core.o diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c index 37618b2be9a..b3bef499874 100644 --- a/drivers/mfd/pcf50633-core.c +++ b/drivers/mfd/pcf50633-core.c @@ -325,14 +325,12 @@ static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq) /* Maximum amount of time ONKEY is held before emergency action is taken */ #define PCF50633_ONKEY1S_TIMEOUT 8 -static void pcf50633_irq_worker(struct work_struct *work) +static irqreturn_t pcf50633_irq(int irq, void *data) { - struct pcf50633 *pcf; + struct pcf50633 *pcf = data; int ret, i, j; u8 pcf_int[5], chgstat; - pcf = container_of(work, struct pcf50633, irq_work); - /* Read the 5 INT regs in one transaction */ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1, ARRAY_SIZE(pcf_int), pcf_int); @@ -436,21 +434,7 @@ static void pcf50633_irq_worker(struct work_struct *work) } out: - put_device(pcf->dev); - enable_irq(pcf->irq); -} - -static irqreturn_t pcf50633_irq(int irq, void *data) -{ - struct pcf50633 *pcf = data; - - dev_dbg(pcf->dev, "pcf50633_irq\n"); - - get_device(pcf->dev); - disable_irq_nosync(pcf->irq); - queue_work(pcf->work_queue, &pcf->irq_work); - - return IRQ_HANDLED; + return IRQ_HANDLED } static void @@ -488,9 +472,6 @@ static int pcf50633_suspend(struct i2c_client *client, pm_message_t state) * henceforth */ disable_irq(pcf->irq); - /* Make sure that any running IRQ worker has quit */ - cancel_work_sync(&pcf->irq_work); - /* Save the masks */ ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M, ARRAY_SIZE(pcf->suspend_irq_masks), @@ -531,16 +512,7 @@ static int pcf50633_resume(struct i2c_client *client) if (ret < 0) dev_err(pcf->dev, "Error restoring saved suspend masks\n"); - /* Restore regulators' state */ - - - get_device(pcf->dev); - - /* - * Clear any pending interrupts and set resume reason if any. - * This will leave with enable_irq() - */ - pcf50633_irq_worker(&pcf->irq_work); + enable_irq(pcf->irq); return 0; } @@ -574,22 +546,13 @@ static int __devinit pcf50633_probe(struct i2c_client *client, pcf->dev = &client->dev; pcf->i2c_client = client; pcf->irq = client->irq; - pcf->work_queue = create_singlethread_workqueue("pcf50633"); - - if (!pcf->work_queue) { - dev_err(&client->dev, "Failed to alloc workqueue\n"); - ret = -ENOMEM; - goto err_free; - } - - INIT_WORK(&pcf->irq_work, pcf50633_irq_worker); version = pcf50633_reg_read(pcf, 0); variant = pcf50633_reg_read(pcf, 1); if (version < 0 || variant < 0) { dev_err(pcf->dev, "Unable to probe pcf50633\n"); ret = -ENODEV; - goto err_destroy_workqueue; + goto err_free; } dev_info(pcf->dev, "Probed device version %d variant %d\n", @@ -603,12 +566,13 @@ static int __devinit pcf50633_probe(struct i2c_client *client, pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00); pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00); - ret = request_irq(client->irq, pcf50633_irq, - IRQF_TRIGGER_LOW, "pcf50633", pcf); + ret = request_threaded_irq(client->irq, NULL, pcf50633_irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "pcf50633", pcf); if (ret) { dev_err(pcf->dev, "Failed to request IRQ %d\n", ret); - goto err_destroy_workqueue; + goto err_free; } /* Create sub devices */ @@ -654,8 +618,6 @@ static int __devinit pcf50633_probe(struct i2c_client *client, return 0; -err_destroy_workqueue: - destroy_workqueue(pcf->work_queue); err_free: i2c_set_clientdata(client, NULL); kfree(pcf); @@ -669,7 +631,6 @@ static int __devexit pcf50633_remove(struct i2c_client *client) int i; free_irq(pcf->irq, pcf); - destroy_workqueue(pcf->work_queue); platform_device_unregister(pcf->input_pdev); platform_device_unregister(pcf->rtc_pdev); |