mfd: Make twl4030 SIH SPARSE_IRQ capable

twl4030 is using a two level irq controllers infrastruture.
So far, only the first level was using dynamic irq_desc allocation
to be able to have irq_domain support for device tree.
There is a need to allocate separate irq_descs for the SIH too to
avoid hacking the first level with interrupts from the second level.

Add an irq_base parameter to allow the caller to provide the base from
pdata or from dynamic allocation.

Affect TWL4030_NR_IRQS to the twl-core IRQs only.

Moreover that will allow the extraction of the of_node pointer for further
Device Tree conversion.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index b8b4f228757c..697396c74627 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -404,7 +404,8 @@ static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
                                 "can't dispatch IRQs from modules\n");
                         goto no_irqs;
                 }
-                ret = twl4030_sih_setup(TWL4030_MODULE_GPIO);
+                ret = twl4030_sih_setup(&pdev->dev, TWL4030_MODULE_GPIO,
+                                        pdata->irq_base);
                 if (ret < 0)
                         return ret;
                 WARN_ON(ret != pdata->irq_base);