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ARM: pxa: pxa_cplds: honor probe deferral 

The method to acquire the input interrupt was working in a platform data
based board, but was failing in a device-tree one when the gpio
controller was probed after pxa_cplds.

Use platform_get_irq() to benefit from the probe deferral
mechanism. Moreover, as seen in dm9000.c development, platform_get_irq()
doesn't honor the irq type IO resource (ie. edge rising for example),
and it must be passed again at irq request in a not device-tree build,
hence the irq_get_trigger_type() call.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
This commit is contained in:
Robert Jarzmik 2016-09-26 09:21:28 +02:00
parent d3570e3c50
commit 3738ca1b2a
1 changed files with 4 additions and 7 deletions
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11
arch/arm/mach-pxa/pxa_cplds_irqs.c
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@ -120,13 +120,9 @@ static int cplds_probe(struct platform_device *pdev)
if (!fpga)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res) {
fpga->irq = (unsigned int)res->start;
irqflags = res->flags;
}
if (!fpga->irq)
return -ENODEV;
fpga->irq = platform_get_irq(pdev, 0);
if (fpga->irq <= 0)
return fpga->irq;
base_irq = platform_get_irq(pdev, 1);
if (base_irq < 0)
@ -142,6 +138,7 @@ static int cplds_probe(struct platform_device *pdev)
writel(fpga->irq_mask, fpga->base + FPGA_IRQ_MASK_EN);
writel(0, fpga->base + FPGA_IRQ_SET_CLR);
irqflags = irq_get_trigger_type(fpga->irq);
ret = devm_request_irq(&pdev->dev, fpga->irq, cplds_irq_handler,
irqflags, dev_name(&pdev->dev), fpga);
if (ret == -ENOSYS)