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authorBenoit Cousson <b-cousson@ti.com>2012-03-01 01:48:32 +0400
committerSamuel Ortiz <sameo@linux.intel.com>2012-03-22 16:05:53 +0400
commit2d9dd99b4470a2ef05509435465e055f50456330 (patch)
treea0a3ff0ef75ac90324131e9785cb389861272b4e /drivers/gpio
parent364cedb2f97063d649b2950c099883b89b60c000 (diff)
downloadlinux-2d9dd99b4470a2ef05509435465e055f50456330.tar.xz
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>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-twl4030.c33
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index 697396c74627..49e5c6eb403a 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -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) {