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mfd: twl6040: Correct Ready and Thermal interrupt handling

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Create new irq handler for thermal events in order to be able to handle the
event and clean up the code regarding to interrupt handling:
Use proper function names for the irq handlers
No need to read the INTD register anymore.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
tirimbino
Peter Ujfalusi 12 years ago committed by Samuel Ortiz
parent f9be134357
commit 1ac96265a6
1 changed files with 31 additions and 21 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 52
      drivers/mfd/twl6040-core.c

52
drivers/mfd/twl6040-core.c
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@ -193,27 +193,27 @@ static void twl6040_power_down_manual(struct twl6040 *twl6040)
twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
}
static irqreturn_t twl6040_naudint_handler(int irq, void *data)
static irqreturn_t twl6040_readyint_handler(int irq, void *data)
{
struct twl6040 *twl6040 = data;
u8 intid, status;
intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
complete(&twl6040->ready);
if (intid & TWL6040_READYINT)
complete(&twl6040->ready);
return IRQ_HANDLED;
}
if (intid & TWL6040_THINT) {
status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
if (status & TWL6040_TSHUTDET) {
dev_warn(twl6040->dev,
"Thermal shutdown, powering-off");
twl6040_power(twl6040, 0);
} else {
dev_warn(twl6040->dev,
"Leaving thermal shutdown, powering-on");
twl6040_power(twl6040, 1);
}
static irqreturn_t twl6040_thint_handler(int irq, void *data)
{
struct twl6040 *twl6040 = data;
u8 status;
status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
if (status & TWL6040_TSHUTDET) {
dev_warn(twl6040->dev, "Thermal shutdown, powering-off");
twl6040_power(twl6040, 0);
} else {
dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on");
twl6040_power(twl6040, 1);
}
return IRQ_HANDLED;
@ -580,12 +580,19 @@ static int __devinit twl6040_probe(struct i2c_client *client,
goto irq_init_err;
ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY,
NULL, twl6040_naudint_handler, IRQF_ONESHOT,
NULL, twl6040_readyint_handler, IRQF_ONESHOT,
"twl6040_irq_ready", twl6040);
if (ret) {
dev_err(twl6040->dev, "READY IRQ request failed: %d\n",
ret);
goto irq_err;
dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret);
goto readyirq_err;
}
ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_TH,
NULL, twl6040_thint_handler, IRQF_ONESHOT,
"twl6040_irq_th", twl6040);
if (ret) {
dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
goto thirq_err;
}
/* dual-access registers controlled by I2C only */
@ -650,8 +657,10 @@ static int __devinit twl6040_probe(struct i2c_client *client,
return 0;
mfd_err:
free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040);
thirq_err:
free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
irq_err:
readyirq_err:
twl6040_irq_exit(twl6040);
irq_init_err:
if (gpio_is_valid(twl6040->audpwron))
@ -677,6 +686,7 @@ static int __devexit twl6040_remove(struct i2c_client *client)
gpio_free(twl6040->audpwron);
free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
free_irq(twl6040->irq_base + TWL6040_IRQ_TH, twl6040);
twl6040_irq_exit(twl6040);
mfd_remove_devices(&client->dev);

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