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authorMiquel Raynal <miquel.raynal@bootlin.com>2018-10-01 16:13:48 +0200
committerMarc Zyngier <marc.zyngier@arm.com>2018-10-02 11:59:40 +0100
commit9770c66778489d5fdbb3ba4e807adac724a55397 (patch)
tree6ebd6b3a9cf08f667451771be071f4d5e1d83fe8 /drivers/irqchip/irq-mvebu-icu.c
parent2b4dab69dcca13c5be2ddaf1337ae4accd087de6 (diff)
downloadlinux-9770c66778489d5fdbb3ba4e807adac724a55397.tar.bz2
irqchip/irq-mvebu-icu: Clarify the reset operation of configured interrupts
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>
Diffstat (limited to 'drivers/irqchip/irq-mvebu-icu.c')
-rw-r--r--drivers/irqchip/irq-mvebu-icu.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index a2a3acd74491..0f2655d7f19e 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -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));
}