On Thursday 06 of June 2013 16:31:22 Chander Kashyap wrote: > Exynos5420 uses 256 GIC interrupts unlike the previous Exynos SoCs which > had upto 160 GIC interrupts. Since the exynos-combiner driver uses irq > domain simple to support some of the Exynos4 non-dt platforms, the > irq_base is set temporarily to 256 for Exynos5420 combiner interrupts. > > Signed-off-by: Chander Kashyap <chander.kashyap@xxxxxxxxxx> > Signed-off-by: Thomas Abraham <thomas.abraham@xxxxxxxxxx> > --- > drivers/irqchip/exynos-combiner.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/irqchip/exynos-combiner.c > b/drivers/irqchip/exynos-combiner.c index a9d2b2f..465271f 100644 > --- a/drivers/irqchip/exynos-combiner.c > +++ b/drivers/irqchip/exynos-combiner.c > @@ -267,7 +267,10 @@ static int __init combiner_of_init(struct > device_node *np, * get their IRQ from DT, remove this in order to get > dynamic * allocation. > */ > - irq_base = 160; > + if (soc_is_exynos5420()) > + irq_base = 256; > + else > + irq_base = 160; I'm not sure if this is needed in any way, since Exynos4 non-DT support is going to be removed in 3.11. Even if yes, IMHO a much better solution would be: if (of_have_populated_dt()) irq_base = 0; else irq_base = 160; This way, when running with DT, combiner would get a linear IRQ domain, without any hardcoded IRQ base. Best regards, Tomasz > combiner_init(combiner_base, np, max_nr, irq_base); -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
