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Commit ba7d850a authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Russell King
Browse files

[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: default avatarUwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent ff9e76aa

arch/arm/mach-ns9xxx/board-a9m9750dev.c

+7 −2
Original line number Diff line number Diff line
@@ -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)