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gpio/twl: Allocate irq_desc dynamically for SPARSE_IRQ support 

Do not use the board pdata for irq_base, but allocate them dynamically
to allow a proper support of SPARSE_IRQ.

Fix an unneeded line wrap.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Benoit Cousson 2012-02-29 22:48:32 +01:00 committed by Samuel Ortiz
parent 364cedb2f9
commit 2d9dd99b44
1 changed files with 17 additions and 16 deletions
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33
drivers/gpio/gpio-twl4030.c
View File

@ -395,23 +395,26 @@ static int gpio_twl4030_remove(struct platform_device *pdev);
static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
{
struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
int ret;
int ret, irq_base;
/* maybe setup IRQs */
if (pdata->irq_base) {
if (is_module()) {
dev_err(&pdev->dev,
"can't dispatch IRQs from modules\n");
goto no_irqs;
}
ret = twl4030_sih_setup(&pdev->dev, TWL4030_MODULE_GPIO,
pdata->irq_base);
if (ret < 0)
return ret;
WARN_ON(ret != pdata->irq_base);
twl4030_gpio_irq_base = ret;
if (is_module()) {
dev_err(&pdev->dev, "can't dispatch IRQs from modules\n");
goto no_irqs;
}
irq_base = irq_alloc_descs(-1, 0, TWL4030_GPIO_MAX, 0);
if (irq_base < 0) {
dev_err(&pdev->dev, "Failed to alloc irq_descs\n");
return irq_base;
}
ret = twl4030_sih_setup(&pdev->dev, TWL4030_MODULE_GPIO, irq_base);
if (ret < 0)
return ret;
twl4030_gpio_irq_base = irq_base;
no_irqs:
/*
* NOTE: boards may waste power if they don't set pullups
@ -443,9 +446,7 @@ no_irqs:
ret = gpiochip_add(&twl_gpiochip);
if (ret < 0) {
dev_err(&pdev->dev,
"could not register gpiochip, %d\n",
ret);
dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);
twl_gpiochip.ngpio = 0;
gpio_twl4030_remove(pdev);
} else if (pdata->setup) {