From: Uwe Kleine-König Date: Sun, 30 Sep 2007 19:34:41 +0000 (+0100) Subject: [ARM] 4589/1: ns9xxx: acknowledge IRQ_EXT2 in the demux routine for FPGA irqs X-Git-Tag: v2.6.24-rc1~1273^2~14 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba7d850a02c7c3357ec488776405470534e7ccf8;p=linux-2.6 [ARM] 4589/1: ns9xxx: acknowledge IRQ_EXT2 in the demux routine for FPGA irqs The FPGA on the a9m9750dev board interrupts the CPU via EXT2. So to acknowledge any FPGA interrupt IRQ_EXT2 must be acknowledged. Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King --- diff --git a/arch/arm/mach-ns9xxx/board-a9m9750dev.c b/arch/arm/mach-ns9xxx/board-a9m9750dev.c index 925048e7ad..88d1f7ef78 100644 --- a/arch/arm/mach-ns9xxx/board-a9m9750dev.c +++ b/arch/arm/mach-ns9xxx/board-a9m9750dev.c @@ -70,15 +70,20 @@ static void a9m9750dev_fpga_demux_handler(unsigned int irq, { int stat = FPGA_ISR; + desc->chip->mask_ack(irq); + while (stat != 0) { int irqno = fls(stat) - 1; + struct irq_desc *fpgadesc; stat &= ~(1 << irqno); - desc = irq_desc + FPGA_IRQ(irqno); + fpgadesc = irq_desc + FPGA_IRQ(irqno); - desc_handle_irq(FPGA_IRQ(irqno), desc); + desc_handle_irq(FPGA_IRQ(irqno), fpgadesc); } + + desc->chip->unmask(irq); } void __init board_a9m9750dev_init_irq(void)