staging: drm/imx: use generic irq chip unused field to block out invalid irqs

This depends on the patch "genirq: irqchip: Add mask to block out invalid irqs"
and masks out reserved bits using the unused interrupt bitfield.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 7135b2d1790dec245303d26856f3c19e73a241b3..e35d0bf03c7b974d127f9a7b31f8a13f71ec7176 100644 (file)
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -941,6 +941,16 @@ static int ipu_irq_init(struct ipu_soc *ipu)
 {
        struct irq_chip_generic *gc;
        struct irq_chip_type *ct;
+       unsigned long unused[IPU_NUM_IRQS / 32] = {
+               0x400100d0, 0xffe000fd,
+               0x400100d0, 0xffe000fd,
+               0x400100d0, 0xffe000fd,
+               0x4077ffff, 0xffe7e1fd,
+               0x23fffffe, 0x8880fff0,
+               0xf98fe7d0, 0xfff81fff,
+               0x400100d0, 0xffe000fd,
+               0x00000000,
+       };
        int ret, i;
 
        ipu->domain = irq_domain_add_linear(ipu->dev->of_node, IPU_NUM_IRQS,
@@ -961,6 +971,7 @@ static int ipu_irq_init(struct ipu_soc *ipu)
        for (i = 0; i < IPU_NUM_IRQS; i += 32) {
                gc = irq_get_domain_generic_chip(ipu->domain, i);
                gc->reg_base = ipu->cm_reg;
+               gc->unused = unused[i / 32];
                ct = gc->chip_types;
                ct->chip.irq_ack = irq_gc_ack_set_bit;
                ct->chip.irq_mask = irq_gc_mask_clr_bit;