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irqchip/irq-mvebu-icu: Clarify the reset operation of configured interrupts

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Rewrite a small section to clarify the reset operation of interrupts
already configured by ATF that we want to handle in the driver. This
will simplify the introduction of System Error Interrupts support.

Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Miquel Raynal 2018-10-01 16:13:48 +02:00 committed by Marc Zyngier
parent 2b4dab69dc
commit 9770c66778
1 changed files with 6 additions and 2 deletions
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8
drivers/irqchip/irq-mvebu-icu.c
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@ -258,8 +258,12 @@ static int mvebu_icu_probe(struct platform_device *pdev)
* avoid unpredictable SPI assignments done by firmware.
*/
for (i = 0 ; i < ICU_MAX_IRQS ; i++) {
u32 icu_int = readl_relaxed(icu->base + ICU_INT_CFG(i));
if ((icu_int >> ICU_GROUP_SHIFT) == ICU_GRP_NSR)
u32 icu_int, icu_grp;
icu_int = readl_relaxed(icu->base + ICU_INT_CFG(i));
icu_grp = icu_int >> ICU_GROUP_SHIFT;
if (icu_grp == ICU_GRP_NSR)
writel_relaxed(0x0, icu->base + ICU_INT_CFG(i));
}