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Commit 77fbdb30 authored by John Crispin's avatar John Crispin Committed by Ralf Baechle
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MIPS: Lantiq: Fix external interrupt sources 



The irq base offset needs to be ignored when matching irqs to external
interrupt pins. Taking the offset into account resulted in the EIU not
being brought up properly.

Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2616/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent d954ffe3

arch/mips/lantiq/irq.c

+2 −4
Original line number Diff line number Diff line
@@ -123,11 +123,10 @@ void ltq_enable_irq(struct irq_data *d) 
static unsigned int ltq_startup_eiu_irq(struct irq_data *d)

{

	int i;

	int irq_nr = d->irq - INT_NUM_IRQ0;



	ltq_enable_irq(d);

	for (i = 0; i < MAX_EIU; i++) {

		if (irq_nr == ltq_eiu_irq[i]) {

		if (d->irq == ltq_eiu_irq[i]) {

			/* low level - we should really handle set_type */

			ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_C) |

				(0x6 << (i * 4)), LTQ_EIU_EXIN_C);
@@ -147,11 +146,10 @@ static unsigned int ltq_startup_eiu_irq(struct irq_data *d) 
static void ltq_shutdown_eiu_irq(struct irq_data *d)

{

	int i;

	int irq_nr = d->irq - INT_NUM_IRQ0;



	ltq_disable_irq(d);

	for (i = 0; i < MAX_EIU; i++) {

		if (irq_nr == ltq_eiu_irq[i]) {

		if (d->irq == ltq_eiu_irq[i]) {

			/* disable */

			ltq_eiu_w32(ltq_eiu_r32(LTQ_EIU_EXIN_INEN) & ~(1 << i),

				LTQ_EIU_EXIN_INEN);