[tip: irq/drivers] irqchip/renesas-rzg2l: Dynamically allocate fwspec array
From: tip-bot2 for Biju Das
Date: Thu Mar 26 2026 - 12:04:33 EST
The following commit has been merged into the irq/drivers branch of tip:
Commit-ID: b8e06e4e419bd3dd99f832d728f17007ada3359c
Gitweb: https://git.kernel.org/tip/b8e06e4e419bd3dd99f832d728f17007ada3359c
Author: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
AuthorDate: Wed, 25 Mar 2026 19:24:26
Committer: Thomas Gleixner <tglx@xxxxxxxxxx>
CommitterDate: Thu, 26 Mar 2026 16:56:22 +01:00
irqchip/renesas-rzg2l: Dynamically allocate fwspec array
The total number of interrupts in RZ/G2L and RZ/G3L SoC are different. The
RZ/G3L has 16 external interrupts whereas RZ/G2L has only 8 external
interrupts. Dynamically allocate fwspec memory instead of static allocation
to support both SoCs.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
Link: https://patch.msgid.link/20260325192451.172562-12-biju.das.jz@xxxxxxxxxxxxxx
---
drivers/irqchip/irq-renesas-rzg2l.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-renesas-rzg2l.c b/drivers/irqchip/irq-renesas-rzg2l.c
index bb6400c..db5d1a5 100644
--- a/drivers/irqchip/irq-renesas-rzg2l.c
+++ b/drivers/irqchip/irq-renesas-rzg2l.c
@@ -81,7 +81,7 @@ static struct rzg2l_irqc_priv {
void __iomem *base;
const struct irq_chip *irq_chip;
const struct irq_chip *tint_chip;
- struct irq_fwspec fwspec[IRQC_NUM_IRQ];
+ struct irq_fwspec *fwspec;
raw_spinlock_t lock;
struct rzg2l_irqc_reg_cache cache;
} *rzg2l_irqc_data;
@@ -630,6 +630,11 @@ static int rzg2l_irqc_common_probe(struct platform_device *pdev, struct device_n
if (IS_ERR(rzg2l_irqc_data->base))
return PTR_ERR(rzg2l_irqc_data->base);
+ rzg2l_irqc_data->fwspec = devm_kcalloc(&pdev->dev, IRQC_NUM_IRQ,
+ sizeof(*rzg2l_irqc_data->fwspec), GFP_KERNEL);
+ if (!rzg2l_irqc_data->fwspec)
+ return -ENOMEM;
+
ret = rzg2l_irqc_parse_interrupts(rzg2l_irqc_data, node);
if (ret)
return dev_err_probe(dev, ret, "cannot parse interrupts: %d\n", ret);