[Patch v7 6/7] irqchip: xilinx: Try to fall back if xlnx, kind-of-intr not provided

[Zubair Lutfullah Kakakhel]

The powerpc dts file does not have the xlnx,kind-of-intr property.
Instead of erroring out, give a warning instead. And attempt to
continue to probe the interrupt controller while assuming
kind-of-intr is 0x0 as a fall back.

Signed-off-by: Zubair Lutfullah Kakakhel <zubair.kakak...@imgtec.com>

---
V6 -> V7
Rebase to v4.9-rc5

V5 -> V6
Rebase to v4.9-rc3

V5 new patch
---
 drivers/irqchip/irq-xilinx-intc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-xilinx-intc.c 
b/drivers/irqchip/irq-xilinx-intc.c
index 971c141..d330917 100644
--- a/drivers/irqchip/irq-xilinx-intc.c
+++ b/drivers/irqchip/irq-xilinx-intc.c
@@ -179,8 +179,8 @@ static int __init xilinx_intc_of_init(struct device_node 
*intc,
 
        ret = of_property_read_u32(intc, "xlnx,kind-of-intr", &irqc->intr_mask);
        if (ret < 0) {
-               pr_err("irq-xilinx: unable to read xlnx,kind-of-intr\n");
-               goto err_alloc;
+               pr_warn("irq-xilinx: unable to read xlnx,kind-of-intr\n");
+               irqc->intr_mask = 0;
        }
 
        if (irqc->intr_mask >> nr_irq)
-- 
2.10.2