linux-kernel - [Patch v5 05/12] irqchip: xilinx: Try to fall back if xlnx,kind-of-intr not provided

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Message-ID: <1476723176-39891-6-git-send-email-Zubair.Kakakhel@imgtec.com>
Date:   Mon, 17 Oct 2016 17:52:49 +0100
From:   Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
To:     <monstr@...str.eu>, <ralf@...ux-mips.org>, <tglx@...utronix.de>,
        <jason@...edaemon.net>, <marc.zyngier@....com>,
        <alistair@...ple.id.au>, <mporter@...nel.crashing.org>
CC:     <soren.brinkmann@...inx.com>, <linux-kernel@...r.kernel.org>,
        <linux-mips@...ux-mips.org>, <michal.simek@...inx.com>,
        <linuxppc-dev@...ts.ozlabs.org>, <mpe@...erman.id.au>,
        <paulus@...ba.org>, <benh@...nel.crashing.org>
Subject: [Patch v5 05/12] irqchip: xilinx: Try to fall back if xlnx,kind-of-intr not provided

The powerpc dts file upstream 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>

---
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 dbf8b0c..485fb11 100644
--- a/drivers/irqchip/irq-xilinx-intc.c
+++ b/drivers/irqchip/irq-xilinx-intc.c
@@ -197,8 +197,8 @@ 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("%s: unable to read xlnx,kind-of-intr\n", __func__);
-		goto err_alloc;
+		pr_warn("%s: unable to read xlnx,kind-of-intr\n", __func__);
+		irqc->intr_mask = 0;
 	}
 
 	if (irqc->intr_mask >> nr_irq)
-- 
1.9.1