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authorGuillaume Delbergue <guillaume.delbergue@greensocs.com>2015-12-01 18:55:51 +0100
committerArnd Bergmann <arnd@arndb.de>2015-12-01 22:50:16 +0100
commitd5d4fdd86f5759924fe54efa793e22eccf508db6 (patch)
tree3ec3d93af5e7c09aeb34d6e7f94679f44986e993
parentLinux 4.4-rc3 (diff)
downloadlinux-d5d4fdd86f5759924fe54efa793e22eccf508db6.tar.xz
linux-d5d4fdd86f5759924fe54efa793e22eccf508db6.zip
irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB
This patch is specifically for PCI support on the Versatile PB board using a DT. Currently, the dynamic IRQ mapping is broken when using DTs. For example, on QEMU, the SCSI driver is unable to request the IRQ. To fix this issue, this patch replaces the current dynamic mechanism with a static value as is done in the non-DT case. Signed-off-by: Guillaume Delbergue <guillaume.delbergue@greensocs.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: stable@vger.kernel.org
-rw-r--r--drivers/irqchip/irq-versatile-fpga.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 598ab3f0e0ac..cadf104e3074 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -210,7 +210,12 @@ int __init fpga_irq_of_init(struct device_node *node,
parent_irq = -1;
}
+#ifdef CONFIG_ARCH_VERSATILE
+ fpga_irq_init(base, node->name, IRQ_SIC_START, parent_irq, valid_mask,
+ node);
+#else
fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node);
+#endif
writel(clear_mask, base + IRQ_ENABLE_CLEAR);
writel(clear_mask, base + FIQ_ENABLE_CLEAR);