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authorKamlakant Patel <kamlakant.patel@broadcom.com>2016-06-05 10:30:43 +0200
committerLinus Walleij <linus.walleij@linaro.org>2016-06-08 10:52:49 +0200
commit1630a0624a1b8e8d8d9c0cb1a584c5a9d4671101 (patch)
tree3cb9f97f14ec1ab71c0d5dcad76780a48303671a
parentgpio: clps711x: Remove board support (diff)
downloadlinux-1630a0624a1b8e8d8d9c0cb1a584c5a9d4671101.tar.xz
linux-1630a0624a1b8e8d8d9c0cb1a584c5a9d4671101.zip
gpio: xlp: Fix vulcan IRQ descriptor allocation
irq_alloc_descs need not be called in case of Vulcan, where we use a dynamic IRQ range for GPIO interrupt numbers. Update code not to call irq_alloc_descs and pass 0 as irq_base in case of Vulcan. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--drivers/gpio/gpio-xlp.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c
index 1a33a19d95b9..6acf8aa3b02d 100644
--- a/drivers/gpio/gpio-xlp.c
+++ b/drivers/gpio/gpio-xlp.c
@@ -388,14 +388,16 @@ static int xlp_gpio_probe(struct platform_device *pdev)
gc->get = xlp_gpio_get;
spin_lock_init(&priv->lock);
- /* XLP has fixed IRQ range for GPIO interrupts */
- if (soc_type == GPIO_VARIANT_VULCAN)
- irq_base = irq_alloc_descs(-1, 0, gc->ngpio, 0);
- else
+
+ /* XLP(MIPS) has fixed range for GPIO IRQs, Vulcan(ARM64) does not */
+ if (soc_type != GPIO_VARIANT_VULCAN) {
irq_base = irq_alloc_descs(-1, XLP_GPIO_IRQ_BASE, gc->ngpio, 0);
- if (irq_base < 0) {
- dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
- return irq_base;
+ if (irq_base < 0) {
+ dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n");
+ return irq_base;
+ }
+ } else {
+ irq_base = 0;
}
err = gpiochip_add_data(gc, priv);