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

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Message-ID: <20161114121351.10924-7-Zubair.Kakakhel@imgtec.com>
Date:   Mon, 14 Nov 2016 12:13:50 +0000
From:   Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
To:     <monstr@...str.eu>, <tglx@...utronix.de>, <jason@...edaemon.net>,
        <marc.zyngier@....com>
CC:     <linux-kernel@...r.kernel.org>, <michal.simek@...inx.com>,
        <linuxppc-dev@...ts.ozlabs.org>, <mpe@...erman.id.au>,
        <Zubair.Kakakhel@...tec.com>
Subject: [Patch v7 6/7] irqchip: xilinx: Try to fall back if xlnx,kind-of-intr not provided

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.Kakakhel@...tec.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