struct mutex irq_lock;
int irq_base;
+ unsigned norequest_mask;
/* Caches of interrupt control registers for bus_lock */
u8 regs[CACHE_NR_REGS][CACHE_NR_BANKS];
struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip);
struct stmpe *stmpe = stmpe_gpio->stmpe;
+ if (stmpe_gpio->norequest_mask & (1 << offset))
+ return -EINVAL;
+
return stmpe_set_altfunc(stmpe, 1 << offset, STMPE_BLOCK_GPIO);
}
.can_sleep = 1,
};
-static int stmpe_gpio_irq_set_type(unsigned int irq, unsigned int type)
+static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
- struct stmpe_gpio *stmpe_gpio = get_irq_chip_data(irq);
- int offset = irq - stmpe_gpio->irq_base;
+ struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - stmpe_gpio->irq_base;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
return 0;
}
-static void stmpe_gpio_irq_lock(unsigned int irq)
+static void stmpe_gpio_irq_lock(struct irq_data *d)
{
- struct stmpe_gpio *stmpe_gpio = get_irq_chip_data(irq);
+ struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
mutex_lock(&stmpe_gpio->irq_lock);
}
-static void stmpe_gpio_irq_sync_unlock(unsigned int irq)
+static void stmpe_gpio_irq_sync_unlock(struct irq_data *d)
{
- struct stmpe_gpio *stmpe_gpio = get_irq_chip_data(irq);
+ struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
struct stmpe *stmpe = stmpe_gpio->stmpe;
int num_banks = DIV_ROUND_UP(stmpe->num_gpios, 8);
static const u8 regmap[] = {
mutex_unlock(&stmpe_gpio->irq_lock);
}
-static void stmpe_gpio_irq_mask(unsigned int irq)
+static void stmpe_gpio_irq_mask(struct irq_data *d)
{
- struct stmpe_gpio *stmpe_gpio = get_irq_chip_data(irq);
- int offset = irq - stmpe_gpio->irq_base;
+ struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - stmpe_gpio->irq_base;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
stmpe_gpio->regs[REG_IE][regoffset] &= ~mask;
}
-static void stmpe_gpio_irq_unmask(unsigned int irq)
+static void stmpe_gpio_irq_unmask(struct irq_data *d)
{
- struct stmpe_gpio *stmpe_gpio = get_irq_chip_data(irq);
- int offset = irq - stmpe_gpio->irq_base;
+ struct stmpe_gpio *stmpe_gpio = irq_data_get_irq_chip_data(d);
+ int offset = d->irq - stmpe_gpio->irq_base;
int regoffset = offset / 8;
int mask = 1 << (offset % 8);
static struct irq_chip stmpe_gpio_irq_chip = {
.name = "stmpe-gpio",
- .bus_lock = stmpe_gpio_irq_lock,
- .bus_sync_unlock = stmpe_gpio_irq_sync_unlock,
- .mask = stmpe_gpio_irq_mask,
- .unmask = stmpe_gpio_irq_unmask,
- .set_type = stmpe_gpio_irq_set_type,
+ .irq_bus_lock = stmpe_gpio_irq_lock,
+ .irq_bus_sync_unlock = stmpe_gpio_irq_sync_unlock,
+ .irq_mask = stmpe_gpio_irq_mask,
+ .irq_unmask = stmpe_gpio_irq_unmask,
+ .irq_set_type = stmpe_gpio_irq_set_type,
};
static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
int irq;
pdata = stmpe->pdata->gpio;
- if (!pdata)
- return -ENODEV;
irq = platform_get_irq(pdev, 0);
if (irq < 0)
stmpe_gpio->dev = &pdev->dev;
stmpe_gpio->stmpe = stmpe;
+ stmpe_gpio->norequest_mask = pdata ? pdata->norequest_mask : 0;
stmpe_gpio->chip = template_chip;
stmpe_gpio->chip.ngpio = stmpe->num_gpios;
ret = stmpe_enable(stmpe, STMPE_BLOCK_GPIO);
if (ret)
- return ret;
+ goto out_free;
ret = stmpe_gpio_irq_init(stmpe_gpio);
if (ret)
- goto out_free;
+ goto out_disable;
ret = request_threaded_irq(irq, NULL, stmpe_gpio_irq, IRQF_ONESHOT,
"stmpe-gpio", stmpe_gpio);
free_irq(irq, stmpe_gpio);
out_removeirq:
stmpe_gpio_irq_remove(stmpe_gpio);
+out_disable:
+ stmpe_disable(stmpe, STMPE_BLOCK_GPIO);
out_free:
kfree(stmpe_gpio);
return ret;