irqchip: vic: Parse interrupt and resume masks from device tree

This patch extends vic_of_init to parse valid interrupt sources
and resume sources masks from device tree.

If mask values are not specified in device tree, all sources
are assumed to be valid, as before this patch.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 2bbb00404cf5..8e21ae0bab46 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -469,6 +469,8 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 int __init vic_of_init(struct device_node *node, struct device_node *parent)
 {
         void __iomem *regs;
+        u32 interrupt_mask = ~0;
+        u32 wakeup_mask = ~0;
 
         if (WARN(parent, "non-root VICs are not supported"))
                 return -EINVAL;
@@ -477,10 +479,13 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
         if (WARN_ON(!regs))
                 return -EIO;
 
+        of_property_read_u32(node, "valid-mask", &interrupt_mask);
+        of_property_read_u32(node, "valid-wakeup-mask", &wakeup_mask);
+
         /*
          * Passing 0 as first IRQ makes the simple domain allocate descriptors
          */
-        __vic_init(regs, 0, ~0, ~0, node);
+        __vic_init(regs, 0, interrupt_mask, wakeup_mask, node);
 
         return 0;
 }